OCS Study 

MMS 2003-062 

 

Refining and Revising the Gulf of Mexico 

Outer Continental Shelf Region 

High-Probability Model 

for Historic Shipwrecks 

Final Report 

Volume III: Appendices 

U.S. Department of the Interior

Minerals Management Service 

Gulf of Mexico OCS Region 
U.S. Department of the Interior

Minerals Management Service 

Gulf of Mexico OCS Region 

OCS Study 

MMS 2003-062 

Refining and Revising the Gulf of Mexico 

Outer Continental Shelf Region 

High-Probability Model 

for Historic Shipwrecks 

Final Report 

Volume III: Appendices 

Authors 

Charles E. Pearson 

Stephen R. James, Jr. 

Michael C. Krivor 

S. Dean El Darragi 

Lori Cunningham 

Prepared under MMS Contract 

1435-01-00-CT-31054 

by 

Panamerican Consultants, Inc. 

Memphis, Tennessee 

and 

Coastal Environments, Inc. 

Baton Rouge, Louisiana 

Published by 

New Orleans

December 2003 
iii

DISCLAIMER

This report was prepared under contract between the Minerals Management Service

(MMS), Panamerican Consultants, Inc., and Coastal Environments, Inc. This report has

been technically reviewed by the MMS and it has been approved for publication.

Approval does not signify that the contents necessarily reflect the views and policies of

the MMS, nor does mention of trade names or commercial products constitute

endorsement or recommendation for use. It is, however, exempt from review and

compliance with the MMS editorial standards.

REPORT AVAILIBILITY

Extra copies of this report may be obtained from the Public Information Unit (Mail Stop

5034) at the following address:

U.S. Department of the Interior

Minerals Management Service

Gulf of Mexico OCS Region

Public Information Unit (MS 5034)

1201 Elmwood Park Boulevard

New Orleans, Louisiana 70123-2394

Telephone: (504) 736-2519 or

1-800-200-GULF

CITATION

Suggested citation:

Pearson, C.E., S.R. James, Jr., M.C. Krivor, S.D. El Darragi, and L. Cunningham. 2003.

Refining and Revising the Gulf of Mexico Outer Continental Shelf Region HighProbability Model for Historic Shipwrecks: Final Report. Volume III:

Appendices. U.S. Dept. of the Interior, Minerals Management Service, Gulf of

Mexico OCS Region, New Orleans, LA. OCS Study MMS 2003-062, 338 pp., 3

volumes.
v

TABLE OF CONTENTS

PAGE

APPENDIX A: THE 1989 SHIPWRECK DATABASE DEVELOPED BY GARRISON

ET AL. (1989)........................................................................................................................ A-1

APPENDIX B: DATAFIELD DEFINITIONS: 2001 SHIPWRECK DATABASE..................................... B-1

APPENDIX C: SHIPWRECK HIGH PROBABILITY LEASE BLOCKS IDENTIFIED FROM

THE 1989 MODEL................................................................................................................ C-1

APPENDIX D: LEASE BLOCKS IN 1989 SHIPWRECK DATABASE THAT HAVE

BEEN SURVEYED AND RESULTS.................................................................................. D-1

APPENDIX E: 2001 GOMR SHIPWRECK DATABASE .............................................................................E-1

APPENDIX F: MAGNETOMETER TECHNOLOGY AND EMPLOYMENT IN THE GOMR ................F-1

APPENDIX G: TASK 3 SURVEY EQUIPMENT ......................................................................................... G-1

APPENDIX H: GRID TRANSECT COORDINATES FOR THE JOSEPHINE AND RHODA.................. H-1

APPENDIX I: STRIPCHARTS BY LINE FOR EACH INSTRUMENT JOSEPHINE

25-METER SURVEY INTERVAL GRID.............................................................................I-1

APPENDIX J: STRIPCHARTS BY LINE FOR EACH INSTRUMENT JOSEPHINE

30-METER SURVEY INTERVAL 4-KNOT GRID ............................................................ J-1

APPENDIX K: STRIPCHARTS BY LINE FOR EACH INSTRUMENT JOSEPHINE

30-METER SURVEY INTERVAL 7-KNOT GRID ........................................................... K-1

APPENDIX L: STRIPCHARTS BY LINE FOR EACH INSTRUMENT RHODA 25-METER

SURVEY INTERVAL GRID ................................................................................................L-1

APPENDIX M: STRIPCHARTS BY LINE FOR EACH INSTRUMENT RHODA 30-METER

SURVEY INTERVAL 4-KNOT GRID............................................................................... M-1

APPENDIX N: STRIPCHARTS BY LINE FOR EACH INSTRUMENT RHODA 30-METER

SURVEY INTERVAL 7-KNOT GRID................................................................................ N-1
INFORMATION IN THIS APPENDIX IS NOT AVAILABLE FOR 

PUBLIC DISCLOSURE 

APPENDIX A 

THE 1989 SHIPWRECK DATABASE DEVELOPED BY 

GARRISON ET AL. (1989) 
APPENDIX B

DATAFIELD DEFINITIONS: 2001 SHIPWRECK DATABASE
B-3

1. RECORD NUMBER: The number of the record in the database.

2. VESSEL ID NUMBER: A unique identification number assigned to each vessel

and object in the database during data collection. Duplicate and other irrelevant

records have been removed causing gaps in this number. This number remains with

each individual record such that it can be tracked, even if records entered before or

after it are deleted.

3. CLASSIFICATION: All entries in the database are classified as either a "Vessel"

or an "Object." A vessel is any entry that is identified as a vessel, part of a vessel or

an item from a vessel. An "Object" is any other type of item on the seafloor, such

as pipe, cable, wellhead, etc.

4. VESSEL NAME: Name of vessel or object as provided in the sources examined.

In some instances, this might be a descriptive name, such as "24-foot pleasure

boat," or "10-foot pipe," "obstruction," or simply "object." If no name or

descriptors are available for an entry, the terms "Unknown vessel" or "Unknown

object" are used.

5. ALTERNATE NAME: Any other name given in the sources examined for the

vessel or the object.

6. 1989 MMS NUMBER: This is the unique number assigned to entries that were

included in the 1989 MMS Shipwreck Database. This number is retained for

information and reference purposes only.

7. OFFICIAL NUMBER: This is the official registration number assigned to vessels

of United States registry.

8. STATE SITE NUMBER: This is the trinomial state site number assigned to a

wreck site.

9. DATE OF LOSS: This is the reported date of loss given in month, date, and year,

(e.g., 01-11-1950) or year only (e.g., 00-00-1847) if that is all that is provided in

sources. If date of loss is unknown, entries are 0's.

10. YEAR OF LOSS: The reported year of loss if known. If the year of loss is

unknown, "0" is entered. This field appears in Access Table View only and is

included for analysis purposes.

11. CAUSE OF LOSS: This is a two-letter code for the documented cause of loss.

The entries are:

AB = abandoned

BE = beached

BU = burned

CA = capsized

CO = collided

EX = explosion

FO = foundered

GF = gunfire/battle

SC = scuttled

ST = stranded & swamped

SU = sunk

UN = unknown

12. MMS LEASE BLOCK: Two- or three-letter code for the MMS lease area and the

lease block number within which the entry falls. MMS lease area codes are listed

below.
B-4

AC = Alaminos Canyon

AM = Amery Terrace

AP = Apalachicola

AT = Atwater

BA = Brazos

BAA = Brazos A

BM = Bay Marchand

BS = Breton Sound

CA = Chandeleur

CC = Corpus Christi

CE =Campeche Escarpment

CH = Charlotte Harbor

DC = Desoto Canyon

DD = Destin Dome

DT = Dry Tortugas

EB = East Breaks

EC = East Cameron

EI = Eugene Island

EL = The Elbow

EW = Ewing Bank

FM = Florida Middle Ground

FP = Florida Plain

GA = Galveston Area

GAA = Galveston Area A

GB = Garden Banks

GI = Grand Isle Area

GC = Green Canyon

GV = Gainesville

HE = Henderson

HH = Howell Hook

HI = High Island

HIA - High Island A

KC = Keathley Canyon

KW = Key West

LL = Lloyd

LS = Lund South

LU = Lund

MA = Miami

MC = Mississippi Canyon

MI = Matagorda Island

MIA = Matagorda Island A

MO = Mobile

MP = Main Pass

MU = Mustang Island

MUA = Mustang Island A

PB = St. Petersburg

PE = Pensacola

PI = Port Isabel

PL = South Pelto

PNA = North Padre Island A

PN = North Padre Island

PR = Pulley Ridge

PSA = South Padre Island A

PS = South Padre Island

RK = Rankin

SA = Sabine Pass (LA)

SE = Sigsbee Escarpment

SM = South Marsh Island

SP = South Pass

SS = Ship Shoal

ST = South Timbalier

SX = Sabine Pass (TX)

TP = Tarpon Springs

TV = Tortugas Valley

VK = Viosca Knoll

VN = Vernon

VR = Vermilion

WR = Walker Ridge

WC = West Cameron

WD = West Delta

13. LATITUDE (DD): The latitude of the entry in decimal degrees.

14. LONGITUDE (DD): The longitude of the entry in decimal degrees.

15. DATUM: The map datum of the coordinates provided in the principal source for a

record. These will be NAD27 or NAD83. In a large number of instances, the map

datum is not specifically referenced in the sources examined. However, in many of

these instances it can be reasonably inferred that the datum is NAD27 and this is

entered. In those cases where it is impossible to identify or reasonably infer a

datum, "Not reported" is entered. In ArcView mapping, all of the data are mapped

to a NAD27 base such that those entries with NAD83 datum coordinates or contain

a "Not reported" entry are converted to NAD27. However, in the Access database,

the NAD83 and "Not reported" coordinates are maintained in the decimal degree

fields (i.e. "Latitude (DD)" and "Longitude (DD)" for information and reference

purposes.

16. LORAN 1: The Loran 1 coordinate if provided in the principal source for the

record. "UNKNOWN" is entered if no Loran coordinates are available.
B-5

17. LORAN 2: The Loran 2 coordinate if provided in the principal source for the

record. "UNKNOWN" is entered if no Loran coordinates are available.

18. LATITUDE NAD27: The latitude of the entry in decimal degrees, North American

Datum 1927. If NAD27 is the value for the DATUM field the value recorded will

be the same as that recorded in LATITUDE (DD). If the value for the DATUM

field is NAD83, this value will record the coordinates projected to NAD 1927. This

should be the latitude used for mapping purposes.

19. LONGITUDE NAD27: The longitude of the entry in decimal degrees, North

American Datum 1927. If NAD27 is the value for the DATUM field the value

recorded will be the same as that recorded in LONGITUDE (DD). If the value for

the DATUM field is NAD83 this value will record the coordinates projected to

NAD 1927. This should be the longitude used for mapping purposes.

20. NEAREST LANDMARK: Includes any reference to a geographic location

provided in the principal source of information for the record, such as a landform,

port, or community. If no reference to a landmark is contained in the principal

source, "None" is entered.

21. NEAREST STATE (2): Two-letter code for the state nearest to the position of the

entry. These are: AL = Alabama; FL = Florida; LA = Louisiana; MS = Mississippi

and TX = Texas

22. LOCATION RELIABILITY: Reliability of available information on the reported

location of loss.

1 . Wreck location is confirmed through physical verification and has been

accurately positioned (e.g., with GPS or on an accurate, modern map) or is

identified on the basis of accurately positioned remote sensing survey. The location

is considered to be very reliable such that a wreck would be easy to relocate using

standard DGPS equipment.

2. A specific location is provided for a wreck or a vessel loss by an informant,

reported in the literature or on a map. Included in this category are wrecks or losses

whose position is given to at least the nearest actual minute of latitude and

longitude, to a specific offshore lease block, and those that have been discovered

and positioned using LORAN equipment. The location reliability of these wrecks

or losses is considered to be moderate to good. It is anticipated that these wrecks

could be discovered, but discovery would require a moderate amount of field survey

with remote sensing equipment, plus it may require additional historical research.

3. A general location for a wreck or a vessel loss is provided by an informant or in

the literature. Included in this category are vessels whose locations of loss are

given only in degrees of latitude and longitude. Also included in this category are

vessels whose general position of loss is provided in relation to a known landmark,

such as "10 miles south, southeast of Ship Island." The location reliability of these

wrecks or losses is considered to be fair to poor. Discovery of wrecks included in

this category could be very difficult and commonly would require a considerable

amount of historical research and/or remote sensing survey.

4. Unreliable or vague location information is provided on a wreck or place of loss

of a vessel. Examples would include many early accounts of vessel losses such as

reports of vessels lost in hurricanes "near latitude such and such" or other general
B-6

indications of loss, such as "30 miles off Padre Island," "off the coast of Louisiana"

"south of Galveston," or "between Galveston and New Orleans." Directed searches

for these vessels are nearly impossible and their discovery will mainly be by

chance. Also included in this reliability category are items that were reported to be

"adrift" when there is no evidence to indicate where, or if, they sank as well as those

cases where information is unavailable to make any assessment of the reliability of

the position given.

23. VESSEL TYPE: Two- or three-letter code of the vessel type, object associated

with a vessel, or an aircraft as given on the historical records, or obtained from

archaeological data. If type is unknown or unreported, "UNK" is entered.

AIR = aircraft

ANC = anchor/chain

BAR = barque

BGE = barge

BNK = barkentine

BRG = brig

BRI = brigantine

BYT = buoy tender

CCR = cabin cruiser

CLP = clipper

CRB = crane barge

CRW = crewboat

CUT = cutter

DES = destroyer escort

DIR = drilling rig/ship

DRE = dredge

DVT = dive tender

EXP = exploration

vessel

F/V = fishing vessel

FER = ferryboat

FRT = freighter

GBT = gunboat

GLN = galleon

H/B = hopper barge

HEL = helicopter

JUB = jack-up barge

LDC = landing craft

LNS = landing ship

LST = landing ship,

tanks

LUG = lugger

M/V = motor vessel

MCH = merchant

MSW = mine sweeper

P/C = pleasure craft

PAS = passenger

steamer

PAT = patrol boat

PDL = paddlewheel boat

SAI = sailboat

SB = schooner/barge

SCH = schooner

SDW = sidewheeler

SHM = shrimp trawler

SHP = ship

SKI = skiff

SLP = sloop

SPV = supply vessel

ST =

steamer/steamboat

STW = sternwheeler

SUB = submarine

T/B = tug or tow boat

TNK = tanker

TOW = tow boat

TPB = torpedo boat

TRA = trawler

TUG = tug boat

YCT = yacht

UNK = Unknown

24. PROPULSION TYPE: Two-letter code for the propulsion system as given in the

source for the record. If no information on propulsion is provided, "Unknown"

(UN) is entered.

DS = diesel screw

GA = gas

GS =gasoline screw

OR = oar

OS = oil screw

SA = sail

SM = steam

SS = steam screw

ST = steam

sternwheeler

SW = steam

sidewheeler

TW = towed

UN = Unknown

25. YEAR BUILT: Year in which vessel was built, if known. If the year built is

unknown "0" is entered.

26. WHERE BUILT: Two- or three-letter code for the place of build of the vessel, if

known. If place of build is unknown "UN" is entered.

ABW = Aberdeen, WA

AL = Alabama

ALC = Alameda, CA

ALG = Algiers, LA

APF = Apalachicola, FL

AST = Astoria, NY

BBM = Booth Bay, ME

BEL = Belfast, Northern

Ireland
B-7

BER = Bergen, Norway

BFM = Belfast, ME

BIL = Biloxi, MS

BLZ = Belize

BMD = Baltimore, MD

BME = Birmingham,

England

BMT = Beaumont, TX

BNC = Bluefields,

Nicaragua

BNY = Brooklyn, NY

BPC = Bridgeport, CN

BRL = Baton Rouge, LA

BRM = Bremen, Germany

BRS = Brashear, LA

BSL = Bay St. Louis, MS

BSM = Boston, MA

BST = Bostock

BTM = Bath, ME

BWT = Brownsville, TX

CAM = Calais, ME

CBN = Caibarien, Cuba

CCT = Corpus Christi, TX

CDS = Cadiz, Spain

CGA = Columbus, GA

CHC = Chicago, IL

CHF = Charlotte Harbor,

FL

CHP = Chester, PA

CMM = Campeche,

Mexico

CNJ = Camden, NJ

CNO = Cincinnati, OH

CRV = Caracas, Venezuela

CSC = Charleston, SC

CUB = Cuba

DEL = Delaware

DET = Detroit, MI

DRT = Dry Tortugas

DUM = Duluth, MN

EBM = East Boston, MA

ECM = Ecorse, MI

ENG = England

EPA = E. Pascagoula, MS

EPR = East Providence, RI

ESM = Essex, MA

EVW = Everett, WA

FLA = Florida

FMF = Ft. Meyers, FL

FTM = Frontera, Mexico

GAL = Galveston, TX

GLS = Glasgow, Scotland

GPM = Gulfport, MS

GPN = Gravelly Point, NJ

GRC = Groton, CN

GRN = Granville, Nova

Scotia

GUA = Guatemala

HAM = Hamburg,

Germany

HOB = Hoboken, NJ

HON = Honduras

HOT = Houston, TX

HPA = Hog Island, PA

HRP = Harriman, PA

HTI = Haiti

HVN = Havana, Cuba

JFL = Jacksonville, FL

KIJ = Kingston, Jamaica

KKF = Knights Key, FL

KWF = Key West, FL

LA = Louisiana

LAC = Los Angeles, CA

LAK = Lake Charles, LA

LAN = Lancaster, England

LFL = Lafitte, LA

LON = London, England

LPE = Liverpool, England

MAF = Marco, FL

MAT = Matagorda, TX

MEX = Mexico

MFD = Millard, DL

MGC = Morgan City, LA

MIA = Miami, FL

MLD = Maitland, DL

MNW = Manitowoc, WI

MOA = Mobile, AL

MRF = Marseille, France

MS = Mississippi

NBC = New Bedford, CN

NBM = Nobleboro, ME

NBP = Newburyport, MA

NC = North Carolina

NCE = Newcastle, England

NIC = Nicaragua

NLC = New London, CN

NO = New Orleans, LA

NOC = Noank, CN

NOF = Norfolk, VA

NOR = Norway

NPM = Neponset, MA

NPN = Newport News, VA

NY = New York

NYC = New York City,

NY

OAK = Oakland, CA

ORB = Orebic

ORT = Orange, TX

OSL = Oslo, Norway

PA = Pennsylvania

PAM = Pascagoula, MS

PAN = Perth Amboy, NJ

PAT = Port Arthur, TX

PCF = Panama City, FL

PDK = Paducah, KY

PDS = Port Eads, AL

PEN = Pensacola, FL

PJN = Port Jefferson, NY

PLD = Philadelphia, PA

PLW = Port Ludlow, WA

PSF = Port Sutton, FL

PTC = Puerto Cortez

PTI = Point Isabel, TX

PTL = Portland, ME

PTO = Portland, OR

QUM = Quincy, MA

RI = Rhode Island

RIC = Richmond, CA

RIO = Rio de Janeiro,

Brazil

ROM = Rockland, ME

SAB = Sabine, TX

SAF = St. Augustine, FL

SAV = Savannah, GA

SGM = St. George, ME

SHE = South Hampton,

Eng.

SHP = Ship Island, MS

SMF = St. Marks, FL

SMK = Smithland, KY

SNF = San Francisco, CA

SPA = Spain

SPC = San Pedro, CA

SPM = South Portland, ME

SPN = Summers Point, NJ

SPR = San Juan, Puerto

Rico

STL = Seattle, WA

SUP = Superior, WI

TAB = Tabasco, Mexico

TAR = Tarpon Springs, FL

TMM = Thomaston, ME

TMP = Tampico, Mexico

TNN = Tottenville, NY

TPF = Tampa, FL

TRN = Trondheim,

Norway

US = United States

VCM = Vera Cruz, Mexico

WHV = Wheeling, VA

WID = Wilmington, DL

WNC = Wilmington, NC

UN = Unknown
B-8

27. HULL MATERIAL: General description of the material that the hull of the vessel

was built as reported in source of information. Two-letter codes are:

AL = aluminum

CM = composite (iron/steel hull, some wood framing)

CN = concrete

FG = fiberglass

IR = Iron

MT = metal

ST = steel

WD = wood

UN = Unknown

28. VESSEL LENGTH: Measured length of vessel to 10th of a foot, if known. Object

lengths are provided, if known.

29. VESSEL BEAM (width): Measured beam of vessel to 10th of a foot, if known.

30. DEPTH HOLD: Measured depth of hold of vessel to 10th of a foot, if known.

31. DRAFT: Measured draft of vessel to 10th of a foot, if known.

32. TONNAGE (gross): Total or gross tonnage (burden), if known; to the nearest ton.

33. TONNAGE (net): Net tonnage (burden), if known; to the nearest ton.

34. NUMBER OF MASTS: Number of masts, if known.

35. NUMBER OF DECKS: Number of decks, if known.

36. BOW SHAPE: Three-letter code for the shape or profile of bow if given in sources

for record. "UNK" is entered if bow shape is unknown.

CLP = “clipper” bow

CRP = curved and plumb

CRR = curved and raked

HRK = hollow curved and raked

RKS = straight and raked

STP = straight and plumb

TRR = transom and raked

TRS = transom and straight

UNK = unknown

37. STERN SHAPE: Three-letter code for the shape or profile of the stern if given in

sources for record. "UNK" is entered if bow shape is unknown.

PKS = “pink” stern

RDS = round stern

TKS = “tucked” stern

TRS = transom or flat stern

UNK = unknown

38. BUILDER: Name of person or firm who built hull, if known.
B-9

39. OWNER: Name of person or firm who owned vessel when lost, if known.

40. MAIN ENGINE TYPE: Three-letter code for type of main engine(s), if known.

"UNK" is entered if engine type is unknown.

DEI = diesel engine

GAS = gasoline engine

STH = high pressure steam engine

STL = low pressure steam engine

STM = steam engine

TUR = turbine

UNK = unknown

41. HORSEPOWER: Horsepower for main engine(s), if known

42. NUMBER OF CYLINDERS: Number of cylinders in main engine(s), if known.

43. CYLINDER SIZE (inches): Diameter of engine cylinder(s) in inches, if known.

44. STROKE (feet): Length of piston stroke in feet for main engine, if known.

45. YEAR ENGINE BUILT: Year main engine(s) was built, if known.

46. ENGINE BUILDER: Name of person or firm who built main engine(s), if known.

47. NUMBER OF BOILERS: Number of boilers, if known

48. BOILER TYPE: Three-letter code for type of boiler(s), if known. "UNK" is

entered if unknown.

COR = cornish boiler

CYB = cylinder boiler

FLU = flue boiler

LAN = lancashire boiler

LOC = locomotive or fire-box boiler

MTB = marine tubular boiler

NRB = north river boiler

SCT = scotch boiler

TUB = tubular boiler, also called fire tube boiler

VFT = vertical fire tube boiler

WTB = water tube boiler

UNK = unknown

49. VESSEL USE: A two-letter code for the manner in which the vessel was most

commonly used, if known.

CC = cargo carrier

DS = dive support vessel

EX = exploration vessel

FV = fishing vessel (includes shrimpers)

PC = passenger carrier

PL = pleasure/recreation craft

PS = patrol ship

PT = packet boat (combined passenger and

cargo carrier)

SV = supply vessel

TA = tanker

TU = tug or tow boat

WA = warship

UN = Unknown
B-10

50. HOMEPORT: Two- or three-letter code for the city, town, state, etc., identified as

vessel's homeport, if known. See Field 26 for list of abbreviations.

51. NATIONALITY: Three-letter code for the flag under which vessel was operating

when lost, if known.

ARG = Argentina

BRI = Britain/England

CAN = Canada

CUB = Cuba

ELS = El Salvador

FRA = France

GER = Germany

HON = Honduras

LIB = Liberia

MEX = Mexico

NIC = Nicaragua

NOR = Norway

PAN = Panama

RUS = Russia/Soviet Union

SPA = Spain

USA = United States of America

YUG = Yugoslavia

52. DESTINATION: Two- or three-letter code for port of destination when vessel was

lost, if known. See Field 26 for list of abbreviations.

53. CARGO: Cargo carried by vessel when lost, if known.

54. ARMAMENT: If armed, number of guns carried by vessel when lost, if known.

55. VALUE: Value of vessel when lost, in denomination provided in historical records,

if known.

WRECK SITE INFORMATION

56. WATER DEPTH: Depth of water in feet at site of sunken vessel or object when the

reported depth is confirmed or considered reliable.

57. SITE SIZE: Site size in square feet, based on measurements obtained from remotesensing records, diver assessments or if otherwise indicated in source of

information.

58. BOTTOM TYPE: Two-letter code for bottom type at site of loss, if reported. If

unknown "UN" is entered.

CL = clay

SA = sand

UN = unknown

59. WRECK CONDITION: Condition of the wreck as determined by physical

examination or as derived from an assessment of available remote-sensing records.

1 = good, much of hull present and articulated (over 50 percent of hull present)

2 = fair, partially intact (25 to 50 percent of hull present)

3 = poor, deteriorated (less than 25 percent of hull present, little articulated)

4 = unknown

60. EXPOSURE: Degree and nature of exposure of the wreck as derived from physical

examination or an assessment of available remote-sensing records.

1 = Mostly or entirely exposed (over 50 percent of vessel exposed)
B-11

2 = partially buried by sediment (less than 50 percent of vessel exposed)

3 = entirely buried

4 = unknown

61. MATERIAL COLLECTED: Two-letter code for the four most common types of

remains reported to have been collected from the wreck site. If no material is

known to have been recovered, "NA" is listed

BO = bone

CE = ceramics

GL = glass

ME = metal

LE = leather

WO = wood

NA = not available

DOCUMENTATION

62. UNPUBLISHED DATA: Two-letter code for the type of unpublished information

available for wreck site.

AD = artifact description

FN = field notes

PH = photographs

SM = sketch maps

TI = taped interviews

NA = not available

63. DATA DEPOSITORY: Name of the physical location of unpublished data records

and/or artifacts, if known. "MMS-New Orleans" is listed as depository when

information is derived from GOMR remote-sensing surveys.

64. PUBLISHED REFERENCES: Published references from which information on the

entry has been collected. Author and year of publication are provided and full

citations are found in "2001 SHIPWRECK DATABASE REFERENCES" included

with the technical report accompanying this database. Although not strictly

considered published references, where information on an entry was obtained from

records or databases maintained by a specific agency or organization, the entity is

identified. If an agency or database file record number for an entry was recorded

during data collection, this is included in parentheses. A listing of these references

is also included in "2001 SHIPWRECK DATABASE REFERENCES" noted

above. When information was obtained from reports of MMS-mandated offshore

remote-sensing surveys the author, date and a brief title are listed, where this

information is available. Survey reports are also specifically identified with a

reference number found in the data field "MMS SURVEY REFERENCE NO."

These survey reports are on file at the MMS, Gulf of Mexico Region office in New

Orleans.

65. MMS SURVEY REFERENCE NO: The MMS reference number for the lease

block or pipeline survey that contains record of the sunken vessel or object.

66. VESSEL PHOTOGRAPHS: Notes the existence and reference source for

photographs of a vessel or wreck. Selected examples are attached to records.
B-12

67. MAGNETOMETER DATA: Notes if magnetometer data are available for the

sunken vessel or object. Magnetic intensity and duration in feet are given where

available.

68. SIDE SCAN SONAR RECORDS: Notes if side scan sonar records of the sunken

vessel or object are available. Selected examples are attached to records.

69. COMMENTS: Any pertinent comments relevant to the vessel or wreck derived

from the sources examined.

70. RECORDER: Name of the individual completing the record.

71. DATE RECORDED: Date when record was completed; given as Month, Day, and

Year.

72. INFORMATION SOURCE: Includes a code for the principal source(s) of

information for the record, most specifically the source that provided information

on the location of the vessel or object. These entries are listed below. Other

sources providing information on entries are shown in Datafield 64, PUBLISHED

REFERENCES and included in the References section of the technical report.

ANC Archives des Colonies. n.d. Archives des Colonies, Series C13A, C13B, and C13C.

Microfilm Copies, Special Collections, Howard-Tilton Library, Tulane University,

New Orleans.

ARNOLD Arnold, J.Barto III; J.L. Goloboy, A.W. Hall; R.A. Hall and J.D. Shively, 1998.

Texas' Liberty Ships: From World War II Working-Class Heroes to Artificial Reefs.

Bulletin No. 99-1. Texas Parks and Wildlife, Austin.

AWOIS Automated Wrecks and Obstructions Information Service files maintained by the

National Oceanic and Atmospheric Administration (NOAA).

BERG Berg, Daniel and Denise Berg 1991. Florida Shipwrecks: The Diver's Guide to

Shipwrecks Around the State of Florida & the Florida Keys. Aqua Explorers, Inc.,

East Rockaway, New Jersey.

BERMAN Berman, Bruce D. 1972. Encyclopedia of American Shipwrecks. The Mariners Press,

Boston.

CEI Coastal Environments, Inc. 1977. Cultural Resources Evaluation of the Northern Gulf

of Mexico Continental Shelf. 3 volumes. Prepared by Coastal Environments, Inc., for

the Bureau of Land Management, U.S. Department of the Interior, New Orleans Outer

Continental Shelf Office. National Technical Information Service, Springfield,

Virginia.

CHURCH Church, R.A. 2002. Unraveling the Mystery: The Discovery of the German

Submarine U-166. Paper presented at The Minerals Management Service 2002

Information Transfer Meeting, January 8-10, Kenner, La.

CIPRA Cipra, David C. 1997. Lighthouses, Lightships, and the Gulf of Mexico. Cypress

Communications, Alexandria, Virginia.

COWLES Cowles, D.D. (compiler) 1983. The Official Military Atlas of the Civil War. Reprint.

New York, New York: The Fairfax Press.

EVANS Evans, Joseph. n.d. State and Federally Funded Artificial Reefs of Florida, 1985-

1995. Designed and Produced by the author.

FAC Shipwreck records maintained by the Florida Bureau of Archaeological Research,

Tallahassee.

FDMF Database of artificial reefs off the coast of Florida maintained by the Artificial Reef

Program, Florida Division of Marine Fisheries, Florida Fish and Wildlife Conservation

Commission, Tallahassee.

GARRISON Garrison, E.G., C.P. Giammona, F.J. Kelly, A.R. Tripp and G.A. Wolff. 1989.

Historic Shipwrecks and Magnetic Anomalies of the Northern Gulf of Mexico:
B-13

Reevaluation of Archaeological Resource Management Zone 1. 3 volumes. The Texas

A&M Research Foundation, College Station, Texas, MMS Contract 14-12-0001-

30330. U.S. Department of the Interior, Minerals Management Service, Gulf of

Mexico OCS Regional Office, New Orleans.

GSMFC Database of artificial reefs in the Gulf of Mexico maintained by the Gulf States Marine

Fisheries Commission, Ocean Springs, Mississippi.

HO Hangs and Obstructions files formerly maintained by the U.S. Navy, Hydrographic

Office but now maintained by the National Imagery and Mapping Agency (NIMA).

Information derived from Garrison et al. 1989 (see GARRISON)

HOYT Hoyt, S.D. 1993. Offshore Underwater Investigations, Houston-Galveston Navigation

Channels, Texas Project. Galveston, Harris, Liberty and Chambers Counties, Texas.

Espey, Huston & Associates, Inc., Austin, Texas. Prepared for the U.S. Army Corps of

Engineers, Galveston District.

IRION Irion, J.B. and R.J. Anuskiewicz. 1999. MMS Seafloor Monitoring Project: First

Annual Technical Report, 1997 Field Season. OCS Report, MMS 99-0014. U.S.

Department of the Interior, Minerals Management Service, Gulf of Mexico OCS

Region, New Orleans, La..

LLOYDS Data from Lloyd's Missing Vessel Books, 1873-1954; Lloyd's Marine Loss Records,

1873-1954; or Lloyd's Weekly Casualty Reports, published by Lloyd's of London.

Records examined at the Mariners Museum, Newport News, Virginia, or derived from

Garrison et al. 1989 (see GARRISON).

LOCHHEAD Lochhead, John L. 1954. Disasters to American Vessels, Sail and Steam, 1841-1846.

Compiled from the New York Shipping and commercial list. Mariners Museum,

Newport News, Virginia.

MACMILLAN MacMillan, Bruce, Roger C. Smith and James Miller. 1996. U.S. Navy and

Confederate Shipwrecks in Florida: The Florida Navy Legacy Project Phase One:

Historical & Archival Compilation, Volume Two: Florida Shipwreck Database.

Submitted to Naval Historical Center, Washington, DC. Bureau of Archaeological

Research, Florida Division of Historical Resources, Tallahassee.

MBT MBT Divers, Pensacola, Florida, webpage (www.mbtdivers.com/NUMBERSH.htm)

MMS Refers to information obtained from offshore lease block and pipeline surveys provided

by MMS, New Orleans.

MOORE Moore, Arthur R. 1990. A Careless Word...a Needles Sinking: A History of the

Staggering Losses Suffered by the U.S. Merchant Marine, Both in Ships and Personnel,

During World War II. 5th edition. American Merchant Marine Museum, Kings Point,

New York.

MVUS Merchant Vessels of the United States. United States Government Printing Office,

Washington DC. Published by various agencies (United States Bureau of Customs,

1868-1880; United States Department of the Treasury, 1881-1935; United States

Bureau of Marine Inspection and Navigation; 1936-1941; and United States Coast

Guard; 1941-) .

NIMA Non-submarine Contact Database maintained by the National Imagery and Mapping

Agency (NIMA), Washington DC.

PEARSON Pearson, Charles E. and Paul E. Hoffman. 1995. The Last Voyage of El. Nuevo

Constante: The Wreck and Recovery of an Eighteenth-Century Spanish Ship off the

Louisiana Coast. Baton Rouge: Louisiana State University Press.

RINEHART Rinehart, Captain Laney. 1998. The Captain's Guide to Wrecks and Reefs, Privately

printed by the author.

SINGER Singer, Steven D. 1992. Shipwrecks of Florida. Pineapple Press, Inc., Sarasota,

Florida.

TAC Data obtained from the Texas Antiquities Committee Shipwreck Files, Austin, Texas.

USCG Data obtained from electronic database of wrecks, hazards and obstructions maintained

by the United States Guard.

USCGCR Data obtained from United States Coast Guard Marine Board Casualty Reports

(www.uscg.mil/hq/g-m/moa)
B-14

USLS U.S. Life-Saving Service. var years. Annual Reports of the Operations of the U.S.

Life-Saving Service. Derived from Garrison et al. 1989 (see GARRISON).

WADES Wades Pages webpage (www.wadespage.com).

WPA Works Progress Administration [WPA]. 1938. Wreck Reports - A Record of

Casualties to Persons and Vessels on the Mississippi River, Its Tributaries, on Lakes

and Other Waterways of the U.S. Customs District, Port of New Orleans, 1873-1924.

Unpublished manuscript on file, Louisiana State Museum, New Orleans.

73. RECORD UPDATE-RECORDER'S NAME: Name of the individual updating the

record.

74. RECORD UPDATE-DATE OF UPDATE: Date when record was updated; given

as Month, Day, and Year.

75. IMAGE: Refers to any images that are attached.
APPENDIX C

SHIPWRECK HIGH PROBABILITY LEASE BLOCKS

IDENTIFIED FROM THE 1989 MODEL
GOMR Lease Blocks Requiring Archaeological Survey For Historic Shipwrecks

LEASE BLOCKS REQUIRING 50-M SURVEY INTERVAL

C-3

AP0079

AP0080

AP0081

AP0123

AP0124

AP0125

AP0167

AP0168

AP0169

AP0253

AP0254

AP0255

AP0292

AP0293

AP0294

AP0297

AP0298

AP0299

AP0334

AP0336

AP0337

AP0338

AP0341

AP0342

AP0343

AP0377

AP0378

AP0380

AP0381

AP0382

AP0419

AP0420

AP0421

AP0422

AP0441

AP0442

AP0451

AP0452

AP0453

AP0454

AP0461

AP0462

AP0463

AP0464

AP0465

AP0466

AP0485

AP0486

AP0495

AP0496

AP0497

AP0498

AP0499

AP0500

AP0503

AP0504

AP0505

AP0506

AP0507

AP0508

AP0509

AP0510

AP0529

AP0530

AP0539

AP0540

AP0541

AP0542

AP0543

AP0544

AP0545

AP0546

AP0547

AP0548

AP0549

AP0550

AP0551

AP0552

AP0553

AP0554

AP0555

AP0583

AP0584

AP0585

AP0586

AP0587

AP0588

AP0589

AP0590

AP0591

AP0592

AP0593

AP0594

AP0595

AP0596

AP0597

AP0598

AP0599

AP0628

AP0629

AP0630

AP0632

AP0633

AP0634

AP0635

AP0641

AP0642

AP0643

AP0994

AP0995

AP0996

BA00366

BA0335

BA0341

BA0342

BA0364

BA0365

BA0367

BA0375

BA0376

BA0377

BA0378

BA0396

BA0397

BA0398

BA0399

BA0415

BA0416

BA0417

BA0430

BA0431

BA0432

BA0448

BA0449

BA0477

BA0478

BA0479

BA0489

BA0490

BA0491

BA0509

BA0510

BA0511

BA0514

BA0515

BA0516

BA0536

BA0537

BA0538

BA0545

BA0546

BA0547

BM0002

BM0003

BM0004

BM0005

BS0024

BS0025

BS0039

BS0040

BS0041

BS0042

BS0043

BS0044

BS0053

BS0054

BS0055

CA0001

CA0003

CA0004

CA0005

CA0008

CA0009

CA0014

CA0015

CA0016

CA0017

CA0026

CA0027

CA0028

CA0029

CA0030

CH0725

CH0726

CH0727

CH0769

CH0770

CH0771

CH0813

CH0814

CH0815

DD0008

DD0009

DD0010

DD0048

DD0049

DD0050

DD0092

DD0093

DD0094

DD0136

DD0137

DD0138

DD0300

DD0301

DD0302

DD0344

DD0345

DD0346

DD0388

DD0389

DD0390

DD0478

DD0522

DD0566

DT0041

DT0042

DT0043

DT0085

DT0086

DT0087

DT0113

DT0114

DT0115

DT0116

DT0117

DT0118

DT0119

DT0120

DT0121

DT0122

DT0123

DT0129

DT0130

DT0131

DT0157

DT0158

DT0159

DT0160

DT0161

DT0162

DT0163

DT0164

DT0165

DT0166

DT0167

DT0202

DT0203

DT0204

DT0205

DT0206

DT0207

DT0208

DT0209

DT0210

DT0211

DT0247

DT0248

DT0249

DT0250

DT0251

DT0252

DT0253

DT0254

DT0255

DT0280

DT0281

DT0282

DT0292

DT0293
GOMR Lease Blocks Requiring Archaeological Survey For Historic Shipwrecks

LEASE BLOCKS REQUIRING 50-M SURVEY INTERVAL

C-4

DT0294

DT0295

DT0296

DT0297

DT0298

DT0299

DT0324

DT0325

DT0326

DT0336

DT0337

DT0338

DT0339

DT0340

DT0341

DT0342

DT0343

DT0368

DT0369

DT0370

DT0371

DT0372

DT0373

DT0374

DT0375

DT0376

DT0377

DT0378

DT0459

DT0460

DT0503

DT0504

EC0002

EC0003

EC0008

EC0009

EC0010

EC0011

EC0012

EC0013

EC0014

EC0015

EC0016

EC0017

EC0020

EC0021

EC0022

EC0023

EC0024

EC0025

EC0026

EC0033

EC0034

EC0035

EC0036

EC0037

EC0038

EC0039

EC0040

EI0009

EI0010

EI0011

EI0012

EI0018

EI0019

EI0020

EI0021

EI0022

EI0023

EI0024

EI0025

EI0026

EI0027

EI0028

EI0029

EI0030

EI0031

EI0032

EI0033

EI0034

EI0035

EI0037

EI0038

EI0039

EI0040

EI0041

EI0042

EI0048

EI0049

EI0050

EI0056

EI0057

EI0058

EI0059

EI0060

EI0067

EI0068

EI0069

EI0070

EI0071

EI0072

EI0079

EI0080

EI012A

EI0138

EI0139

EI0140

EI0143

EI0144

EI0145

EI0146

EI0149

EI0150

EI0151

EI0160

EI0161

EI0162

EI0165

EI0166

EL0347

FM0026

FM0027

FM0028

FM0070

FM0071

FM0072

FM0211

FM0212

FM0213

FM0255

FM0256

FM0257

FM0299

FM0300

FM0301

FM0740

FM0741

FM0742

FM0784

FM0785

FM0786

FM0828

FM0829

FM0830

GA0103

GA0104

GA0144

GA0145

GA0150

GA0151

GA0152

GA0180

GA0181

GA0182

GA0190

GA0191

GA0192

GA0209

GA0210

GA0220

GA0221

GA0222

GA0223

GA0224

GA0226

GA0227

GA0237

GA0238

GA0239

GA0240

GA0241

GA0242

GA0243

GA0244

GA0250

GA0251

GA0252

GA0253

GA0254

GA0255

GA0256

GA0257

GA0267

GA0268

GA0269

GA0270

GA0271

GA0272

GA0273

GA0274

GA0275

GA0280

GA0281

GA0282

GA0283

GA0284

GA0286

GA0287

GA0288

GA0289

GA0295

GA0296

GA0297

GA0298

GA0301

GA0302

GA0303

GA0304

GA0305

GA0311

GA0312

GA0313

GA0314

GA0315

GA0316

GA0319

GA0320

GA0321

GA0323

GA0324

GA0325

GA0330

GA0331

GA0332

GA0333

GA0334

GA0343

GA0344

GA0345

GA0346

GA0347

GA0352

GA0353

GA0354

GA0359

GA0360

GA0361

GA0362

GA0363

GA0379

GA0380

GA0381

GA0382

GA0383

GA0460

GA0461

GA0462

GA0464

GA0465

GA0503

GAA0009

GAA0010

GAA0011

GAA0017

GAA0018

GAA0019

GAA0023

GAA0024

GAA0025

GAA0030

GAA0031

GAA0032

GAA0057

GAA0082

GAA0083

GAA0128

GAA0129

GAA0158

GAA0180

GAA0181

GAA0182

GI0015

GI0016

GI0017

GI0018

GI0019
GOMR Lease Blocks Requiring Archaeological Survey For Historic Shipwrecks

LEASE BLOCKS REQUIRING 50-M SURVEY INTERVAL

C-5

GI0020

GI0021

GI0022

GI0023

GI0024

GI0025

GI0026

GI0027

GI0037

GI0044

GI0045

GI0046

GI0053

GI0054

GI0055

GI0056

GI0057

GI0058

GI0083

GI0084

GI0085

GI0086

GV0045

GV0089

GV0133

GV0355

GV0356

GV0357

GV0399

GV0400

GV0401

GV0443

GV0444

GV0445

GV0584

GV0585

GV0619

GV0620

GV0621

GV0628

GV0629

GV0630

GV0663

GV0664

GV0665

GV0672

GV0673

GV0674

GV0675

GV0707

GV0708

GV0709

GV0716

GV0717

GV0718

GV0719

GV0760

GV0761

GV0762

GV0763

GV0764

GV0804

GV0805

GV0806

GV0807

GV0808

GV0849

GV0850

GV0851

GV0852

GV0853

GV0893

GV0894

GV0895

GV0896

GV0897

GV0937

GV0938

GV0939

GV0940

GV0941

GV0981

GV0982

GV0983

GV0984

GV0985

GV0986

GV0987

HI0019

HI0020

HI0021

HI0022

HI0023

HI0031

HI0032

HI0033

HI0034

HI0035

HI0036

HI0037

HI0038

HI0039

HI0047

HI0048

HI0049

HI0050

HI0051

HI0053

HI0054

HI0055

HI0063

HI0065

HI0066

HI0067

HI0089

HI0090

HI0091

HI0092

HI0093

HI0094

HI0095

HI0096

HI0097

HI0098

HI0105

HI0106

HI0107

HI0108

HI0109

HI0110

HI0111

HI0112

HI0113

HI0114

HI0134

HI0135

HI0136

HI0137

HI0138

HI0139

HI0140

HI0141

HI0142

HI0143

HI0153

HI0154

HI0155

HI0156

HI0157

HI0158

HI0159

HI0160

HI0164

HI0175

HI0176

HI0177

HI0178

HI0179

HI0193

HI0194

HI0195

HI0196

HI0197

HI0202

HI0203

HI0204

HI0205

HI0206

HI0207

HI0208

HI0228

HI0232

HI0236

HIA0007

HIA0018

HIA0019

HIA0020

HIA0021

HIA0022

HIA0023

HIA0024

HIA0106

HIA0107

HIA0108

HIA0121

HIA0122

HIA0123

HIA0132

HIA0133

HIA0134

HIA0482

HIA0483

HIA0506

HIA0507

HIA0508

HIA0509

KW0001

KW0002

KW0003

KW0004

KW0005

KW0006

KW0007

KW0008

KW0009

KW0012

KW0015

KW0045

KW0046

KW0047

KW0048

KW0049

KW0050

KW0051

KW0089

KW0090

KW0091

KW0092

KW0093

KW0133

KW0134

KW0135

KW0177

KW0178

MA0969

MA0970

MA0971

MA0972

MA0973

MI0519

MI0520

MI0526

MI0527

MI0528

MI0556

MI0557

MI0558

MI0564

MI0565

MI0566

MI0567

MI0589

MI0590

MI0591

MI0592

MI0599

MI0600

MI0601

MI0602

MI0603

MI0621

MI0622

MI0623

MI0624

MI0625

MI0626

MI0631

MI0632

MI0633

MI0634

MI0635

MI0654

MI0655

MI0656

MI0657

MI0658

MI0663

MI0664

MI0665

MI0666

MI0686

MI0687

MI0688

MI0689

MI0690

MI0698
GOMR Lease Blocks Requiring Archaeological Survey For Historic Shipwrecks

LEASE BLOCKS REQUIRING 50-M SURVEY INTERVAL

C-6

MI0699

MI0700

MO0765

MO0766

MO0767

MO0778

MO0779

MO0809

MO0810

MO0811

MO0812

MO0813

MO0814

MO0815

MO0816

MO0817

MO0818

MO0819

MO0820

MO0821

MO0822

MO0823

MO0824

MO0826

MO0827

MO0828

MO0829

MO0830

MO0853

MO0854

MO0855

MO0856

MO0857

MO0858

MO0859

MO0860

MO0861

MO0862

MO0863

MO0864

MO0865

MO0866

MO0867

MO0868

MO0869

MO0870

MO0871

MO0872

MO0873

MO0874

MO0897

MO0898

MO0899

MO0900

MO0901

MO0904

MO0905

MO0906

MO0907

MO0908

MO0909

MO0910

MO0911

MO0912

MO0913

MO0914

MO0915

MO0916

MO0917

MO0942

MO0943

MO0944

MO0945

MO0946

MO0948

MO0949

MO0950

MO0951

MO0952

MO0953

MO0954

MO0955

MO0956

MO0957

MO0958

MO0959

MO0960

MO0961

MO0987

MO0988

MO0989

MO0990

MO0992

MO0993

MO0994

MO0995

MO0996

MO0997

MO0998

MO0999

MO1000

MO1001

MO1002

MP0006

MP0007

MP0017

MP0018

MP0019

MP0020

MP0027

MP0028

MP0029

MP0030

MP0038

MP0043

MP0044

MP0055

MP0056

MP0057

MP0061

MP0062

MP0063

MP0064

MP0065

MP0068

MP0069

MP0071

MP0072

MP0090

MP0091

MP0092

MP0103

MP0114

MP0115

MP0116

MP0117

MP0126

MP0127

MU0745

MU0750

MU0751

MU0757

MU0758

MU0759

MU0761

MU0762

MU0763

MU0770

MU0775

MU0776

MU0783

MU0784

MU0792

MU0793

MU0798

MU0799

MU0809

MU0810

MU0811

MU0815

MU0816

MU0821

MU0822

MU0823

MU0827

MU0828

MU0829

MU0830

MU0831

MU0832

MU0833

MU0837

MU0838

MU0842

MU0843

MU0844

MU0848

MU0849

MU0850

MU0851

MU0852

MU0853

MU0858

MU0859

MU0864

MU0865

MU0878

MU0879

MU0880

MUA0001

PB0018

PB0019

PB0020

PB0062

PB0063

PB0064

PB0109

PB0151

PB0152

PB0153

PB0193

PB0194

PB0195

PB0196

PB0197

PB0198

PB0237

PB0238

PB0239

PB0240

PB0241

PB0242

PB0243

PB0281

PB0282

PB0283

PB0284

PB0285

PB0286

PB0287

PB0309

PB0310

PB0325

PB0326

PB0327

PB0328

PB0329

PB0330

PB0331

PB0353

PB0354

PB0370

PB0371

PB0372

PB0373

PB0374

PB0375

PB0375

PB0375

PB0397

PB0398

PB0414

PB0415

PB0416

PB0417

PB0418

PB0419

PB0459

PB0460

PB0461

PB0462

PB0463

PB0503

PB0504

PB0505

PB0506

PB0507

PB0508

PB0547

PB0548

PB0549

PB0550

PB0551

PB0552

PB0592

PB0593

PB0594

PB0595

PB0596

PB0629

PB0630

PB0631

PB0636

PB0637

PB0638

PB0639
GOMR Lease Blocks Requiring Archaeological Survey For Historic Shipwrecks

LEASE BLOCKS REQUIRING 50-M SURVEY INTERVAL

C-7

PB0640

PB0673

PB0674

PB0675

PB0681

PB0682

PB0683

PB0717

PB0718

PB0719

PB0862

PB0863

PB0864

PB0906

PB0907

PB0908

PB0909

PB0950

PB0951

PB0952

PB0953

PE0751

PE0752

PE0753

PE0754

PE0764

PE0793

PE0794

PE0795

PE0796

PE0797

PE0798

PE0801

PE0802

PE0803

PE0804

PE0805

PE0806

PE0807

PE0808

PE0837

PE0838

PE0839

PE0842

PE0843

PE0844

PE0845

PE0846

PE0847

PE0848

PE0849

PE0850

PE0851

PE0852

PE0853

PE0854

PE0886

PE0887

PE0888

PE0889

PE0890

PE0891

PE0892

PE0893

PE0896

PE0897

PE0898

PE0931

PE0932

PE0933

PE0934

PE0940

PE0941

PE0942

PE0976

PE0977

PE0978

PI0945

PI0946

PI0947

PI0989

PI0990

PI0991

PL0001

PL0002

PL0003

PL0004

PL0005

PL0006

PL0007

PL0008

PL0009

PL0010

PL0011

PL0014

PL0016

PL0025

PN0894

PN0895

PN0896

PN0897

PN0898

PN0904

PN0905

PN0906

PN0907

PN0908

PN0909

PN0910

PN0913

PN0914

PN0915

PN0916

PN0917

PN0918

PN0919

PN0924

PN0925

PN0926

PN0927

PN0928

PN0929

PN0930

PN0933

PN0934

PN0935

PN0936

PN0937

PN0938

PN0939

PN0944

PN0945

PN0946

PN0947

PN0948

PN0949

PN0950

PN0953

PN0954

PN0955

PN0956

PN0957

PN0958

PN0959

PN0964

PN0965

PN0966

PN0967

PN0968

PN0969

PN0970

PN0972

PN0973

PN0974

PN0975

PN0976

PN0977

PN0978

PN0979

PN0980

PN0985

PN0986

PN0987

PN0988

PN0989

PN0990

PN0991

PN0993

PN0995

PN0996

PN0997

PN0998

PN0999

PN1000

PN1001

PN1006

PN1007

PN1008

PN1009

PN1010

PN1011

PN1012

PN1014

PN1019

PN1020

PN1021

PN1022

PNA0060

PR0077

PR0078

PR0079

PR0121

PR0122

PR0123

PR0165

PR0166

PR0167

PR0691

PR0692

PR0693

PR0735

PR0736

PR0737

PR0779

PR0780

PR0781

PR1009

PR1010

PR1011

PS1073

PS1074

PS1075

PS1080

PS1081

PS1082

PS1093

PS1094

PS1095

PS1123

PS1124

PS1125

PS1126

PS1130

PS1131

PS1132

PS1133

PS1144

PS1145

PS1146

PS1151

PS1152

PS1153

PS1164

PS1165

PS1166

SA0003

SA0005

SA0006

SA0007

SA0008

SA0009

SA0010

SA0011

SA0012

SA0014

SA0015

SA0016

SM0207

SM0208

SM0209

SM0210

SM0211

SM0212

SM0213

SM0214

SM0215

SM0216

SM0217

SM0218

SM0222

SM0223

SM0224

SM0225

SM0226

SM0227

SM0228

SM0229

SM0237

SM0238

SM0239

SM0240

SM0241

SS0002

SS0008

SS0009

SS0010
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SS0011

SS0012

SS0013

SS0014

SS0015

SS0016

SS0024

SS0025

SS0026

SS0027

SS0028

SS0029

SS0030

SS0031

SS0035

SS0036

SS0037

SS0038

SS0049

SS0050

SS0051

SS0060

SS0061

SS0062

SS0063

SS0064

SS0065

SS0066

SS0067

SS0068

SS0069

SS0070

SS0071

SS0072

SS0073

SS0074

SS0080

SS0085

SS0086

SS0087

SS0088

SS0089

SS0090

SS0091

SS0092

SS0093

SS0094

SS0096

SS0097

SS0098

SS0103

SS0104

SS0109

SS0110

SS0111

SS0113

SS0114

SS0115

SS0116

SS0127

SS0139

SS0140

SS0143

SS0144

SS0145

SS0158

SS0159

SS0160

SS0167

SS0168

SS0169

ST0009

ST0010

ST0011

ST0016

ST0017

ST0018

ST0019

ST0020

ST0021

ST0022

ST0023

ST0024

ST0028

ST0029

ST0030

ST0031

ST0032

ST0033

ST0034

ST0035

ST0036

ST0046

ST0047

ST0048

ST0052

ST0053

ST0054

ST0055

ST0056

ST0057

ST0062

ST0065

ST0066

ST0067

ST0068

ST0069

ST0070

ST0073

ST0074

ST0075

ST0076

ST0079

ST0080

ST0081

ST0082

ST0083

ST0084

ST0095

ST0096

ST0097

ST0098

ST0100

ST0101

ST0102

ST0109

ST0110

ST0111

SX0017

SX0018

SX0040

TP0011

TP0012

TP0013

TP0014

TP0015

TP0016

TP0017

TP0018

TP0019

TP0020

TP0021

TP0055

TP0056

TP0057

TP0062

TP0063

TP0064

TP0065

TP0099

TP0100

TP0101

TP0102

TP0103

TP0104

TP0106

TP0107

TP0108

TP0109

TP0146

TP0147

TP0148

TP0190

TP0191

TP0192

TP0267

TP0268

TP0269

TP0283

TP0284

TP0285

TP0311

TP0312

TP0313

TP0315

TP0316

TP0317

TP0327

TP0328

TP0329

TP0355

TP0356

TP0357

TP0359

TP0360

TP0361

TP0367

TP0368

TP0369

TP0371

TP0372

TP0373

TP0403

TP0404

TP0405

TP0411

TP0412

TP0413

TP0455

TP0456

TP0457

TP0458

TP0459

TP0460

TP0499

TP0500

TP0501

TP0502

TP0503

TP0504

TP0545

TP0546

TP0547

TP0548

TP0589

TP0590

TP0591

TP0592

TP0667

TP0668

TP0669

TP0711

TP0712

TP0713

TP0755

TP0756

TP0757

TP0942

TP0943

TP0944

TP0986

TP0987

TP0988

VK0020

VK0021

VK0022

VK0029

VK0031

VK0032

VK0033

VK0065

VK0066

VR0011

VR0012

VR0015

VR0016

VR0017

VR0018

VR0019

VR0020

VR0021

VR0022

VR0023

VR0024

VR0025

VR0026

VR0027

VR0028

VR0029

VR0030

VR0031

VR0032

VR0033

VR0034

VR0035

VR0036

VR0037

VR0038

VR0039

VR0046

VR0047

VR0048

VR0054

VR0055

VR0056

VR0138
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VR0139

VR0140

VR0143

VR0144

VR0145

VR0158

VR0159

VRO160

WC0017

WC0018

WC0019

WC0020

WC0021

WC0022

WC0023

WC0024

WC0025

WC0026

WC0027

WC0028

WC0029

WC0030

WC0031

WC0033

WC0034

WC0035

WC0036

WC0037

WC0038

WC0039

WC0040

WC0041

WC0042

WC0043

WC0044

WC0045

WC0046

WC0047

WC0048

WC0049

WC0053

WC0054

WC0055

WC0056

WC0057

WC0058

WC0059

WC0060

WC0061

WC0062

WC0063

WC0064

WC0065

WC0066

WC0067

WC0068

WC0069

WC0070

WC0071

WC0073

WC0074

WC0075

WC0076

WC0077

WC0078

WC0079

WC0080

WC0081

WC0082

WC0083

WC0090

WC0091

WC0092

WC0093

WC0094

WC0095

WC0096

WC0097

WC0098

WC0099

WC0100

WC0109

WC0110

WC0111

WC0112

WC0113

WC0114

WC0115

WC0116

WC0117

WC0118

WC0132

WC0133

WC0134

WC0147

WC0148

WC0149

WC0165

WC0166

WC0167

WC0186

WC0187

WC0188

WC0189

WC0291

WC0292

WD0016

WD0017

WD0018

WD0019

WD0020

WD0021

WD0022

WD0023

WD0024

WD0025

WD0026

WD0027

WD0028

WD0029

WD0030

WD0031

WD0032

WD0033

WD0034

WD0035

WD0036

WD0037

WD0047

WD0048

WD0049

WD0050

WD0056

WD0057

WD0058

WD0059

WD0070

WD0071

WD0072

WD0077

WD0078

WD0079

WD0080

WD0081

WD0085

WD0086

WD0092

WD0093

WD0094

WD0095

WD0096

WD0098

WD0099

WD0100
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AT0039

AT0040

AT0041

BAA133

CC0350

CC0351

CC0394

CC0395

DC0018

DC0019

DC0020

DC0034

DC0036

DC0078

DC0079

DC0080

DC0096

DC0097

DC0098

DC0140

DC0141

DC0142

DC0184

DC0185

DC0186

DC0295

DC0296

DC0297

DC0303

DC0304

DC0320

DC0339

DC0340

DC0341

DC0346

DC0347

DC0348

DC0367

DC0368

DC0369

DC0383

DC0384

DC0385

DC0390

DC0391

DC0392

DC0411

DC0412

DC0413

DC0455

DC0456

DC0457

DC0498

DC0499

DC0500

DC0542

DC0543

DC0544

DC0586

DC0587

DC0588

DC0755

DC0756

DC0757

DC0799

DC0800

DC0801

DC0843

DC0844

DC0845

DD1000

DD1001

DDO429

DDO430

DDO431

DDO459

DDO460

DDO461

DDO473

DDO474

DDO475

DDO503

DDO504

DDO505

DDO517

DDO518

DDO519

DDO547

DDO548

DDO549

DDO749

DDO793

DDO837

DDO939

DDO940

DDO941

DDO983

DDO984

DDO985

DDO999

DT0001

DT0316

DT0317

DT0318

DT0360

DT0361

DT0362

DT0404

DT0405

DT0406

DT0547

DT0548

DT0591

DT0592

DT0705

DT0706

DT0749

DT0750

DT0808

DT0809

DT0810

DT0852

DT0853

DT0854

DT0896

DT0897

DT0898

DTO793

DTO794

EB0154

EB0156

EB0156

EB0198

EB0199

EB0200

EB0242

EB0243

EB0244

EL0018

EL0019

EL0020

EL0347

EL0391

EL0406

EL0407

EL0408

EL0414

EL0415

EL0416

EL0435

EL0450

EL0451

EL0452

EL0458

EL0459

EL0460

EL0494

EL0495

EL0496

EL0502

EL0503

EL0504

EL0939

EL0940

EL0941

EL0983

EL0984

EL0985

EW0304

EW0305

EW0347

EW0348

EW0349

FM0189

FM0190

FM0191

FM0231

FM0232

FM0233

FM0234

FM0235

FM0275

FM0276

FM0277

FM0278

FM0279

FM0319

FM0320

FM0321

FM0590

FM0591

FM0592

FM0634

FM0635

FM0636

FM0678

FM0679

FM0680

FM0769

FM0770

FM0771

FM0813

FM0814

FM0815

FM0857

FM0858

FM0859

FM0942

FM0943

FM0944

FM0986

FM0987

FM0988

GAA0195

GAA0196

GAA0197

GAA0210

GAA0211

GAA0212

GAA0216

GAA0217

GAA0218

GAA0219

GAA0220

GAA0221

GAA0246

GAA0247

GAA0248

GBO255

GI0087

GI0088

GI0114

HE0242

HE0243

HE0244

HE0286

HE0287

HE0288

HE0289

HE0290

HE0291

HE0300

HE0301

HE0302

HE0330

HE0331

HE0332

HE0333

HE0334

HE0335

HE0344

HE0345

HE0346

HE0377

HE0378

HE0379

HE0388

HE0389

HE0390

HE0435

HE0436

HE0437

HE0479

HE0480

HE0481

HE0523

HE0524

HE0525

HE0925

HE0926
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HE0927

HE0969

HE0970

HE0971

HH1030

HH1031

HH1032

HHO552

HHO553

HHO554

HHO597

HHO598

HHO599

HHO642

HHO643

HHO644

HHO671

HHO672

HHO716

HHO717

HHO761

HHO762

HHO985

HHO986

HHO987

KC0872

KC0873

KC0874

KC0916

KC0917

KC0918

KC0960

KC0961

KC0962

LL0404

LL0405

LL0406

LL0407

LL0408

LL0448

LL0449

LL0450

LL0451

LL0452

LL0458

LL0459

LL0460

LL0492

LL0493

LL0494

LL0495

LL0496

LL0502

LL0503

LL0504

LL0546

LL0547

LL0548

LL0710

LL0711

LL0712

LL0754

LL0755

LL0756

LL0798

LL0799

LL0800

LU0123

LU0124

LU0125

LU0167

LU0168

LU0169

LU0211

LU0212

LU0213

LU0299

LU0300

LU0301

LU0343

LU0344

LU0345

LU0387

LU0388

LU0389

LU0408

LU0409

LU0410

LU0452

LU0453

LU0454

LU0496

LU0497

LU0498

LU0626

LU0627

LU0628

LU0670

LU0671

LU0672

LU0714

LU0715

LU0716

LU0730

LU0731

LU0732

LU0774

LU0775

LU0776

LU0818

LU0819

LU0820

MC0063

MC0245

MC0246

MC0247

MC0287

MC0288

MC0289

MC0290

MC0291

MC0331

MC0332

MC0333

MC0334

MC0335

MC0340

MC0341

MC0342

MC0375

MC0376

MC0377

MC0383

MC0384

MC0385

MC0386

MC0387

MC0426

MC0427

MC0428

MC0429

MC0430

MC0454

MC0455

MC0456

MC0498

MC0499

MC0500

MC0542

MC0543

MC0544

MC0750

MC0751

MC0752

MC0753

MC0794

MC0795

MC0796

MC0797

MC0838

MC0839

MC0840

MC0841

MC0963

MC0964

MC0965

MC1007

MC1008

MC1009

MIA0005

MIA0006

MUA0009

MUA0010

MUA0015

MUA0016

MUA0017

MUA0018

MUA0052

MUA0053

MUA0054

MUA0055

MUA0063

MUA0064

MUA0065

MUA0066

MUA0083

MUA0084

MUA0085

MUA0100

MUA0101

MUA0102

MUA0105

MUA0106

MUA0107

MUA0126

MUA0127

MUA0151

MUA0152

MUA0163

PI0517

PI0518

PNA0060

PNA0061

PNA0062

PNA0071

PNA0072

PNA0073

PNA0074

PNA0083

PNA0084

PNA0085

PNA0086

PNA0087

PNA0096

PNA0097

PR0618

PR0661

PR0662

PR0668

PR0669

PR0670

PR0705

PR0706

PR0712

PR0713

PR0714

PR0756

PR0757

PR0758

PSA0026

PSA0027

PSA0028

PSA0029

PSA0030

PSA0039

PSA0041

PSA0041

RK0040

RK0041

RK0042

RK0746

RK0747

RK0790

RK0791

RK0834

RK0835

SP0032

SP0033

SP0034

SP0035

SP0036

SP0037

SP0038

SP0044

SP0045

SP0046

SP0047

SP0048

SP0049

SP0053

SP0054

SP0055

SP0057

SP0058

SP0059

SP0060

SP0061

SP0066

SP0067

SP0070

SP0072

SP0073

VK0781

VK0782

VK0783

VK0785
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VK0786

VK0825

VK0826

VK0827

VK0829

VK0830

VK0869

VK0870

VK0871

VK0873

VK0874

VK0912

VK0913

VK0914

VK0942

VK0943

VK0956

VK0957

VK0958

VK0986

VK1000

VK1001

VK1002

VN0015

VN0016

VN0017

VN0347

VN0348

VN0391

VN0392

VN0435

VN0436

WD0109
INFORMATION IN THIS APPENDIX IS NOT AVAILABLE FOR 

PUBLIC DISCLOSURE 

APPENDIX D 

LEASE BLOCKS IN 1989 SHIPWRECK DATABASE THAT HAVE BEEN 

SURVEYED AND RESULTS 
INFORMATION IN THIS APPENDIX IS NOT AVAILABLE FOR 

PUBLIC DISCLOSURE 

APPENDIX E 

2001 GOMR SHIPWRECK DATABASE 
APPENDIX F

MAGNETOMETER TECHNOLOGY AND EMPLOYMENT IN THE GOMR
F-3

F.1. Marine Magnetics: The Competing Technologies

Magnetometers have been employed for over forty years in detecting and locating

various ferromagnetic materials on land and in marine environments. They have been of

interest to marine archaeologists and geophysicists since initial experiments by Aitken in

1958 as perhaps the most effective and most versatile of a number of electronic

instruments with which it is possible to locate buried cultural features. The principle of

magnetic detection and location of ferromagnetic material originates from the localized

magnetic field variations that these objects produce. Variations from normal Earth

magnetic field conditions are the result of specific characteristics of ferrous material (iron

and steel). Magnetometers measure the strength of the Earth’s magnetic field and the

distinctive disturbances or variations in the strength of the magnetic field known as

anomalies caused by ferrous elements. In a marine environment this is particularly

important as objects are generally covered by sediments, and many times the

environment provides poor visibility during physical searches by divers. In some cases it

is possible to determine some of the significant parameters of the targets, such as size and

shape, characteristics along with, at times, relative depth of burial.

F.1.1. The Earth’s Magnetic Field

The Earth’s magnetic field can be described roughly by field lines coming out of

the Earth’s north magnetic pole, which is in the Southern Hemisphere, and going into the

Earth towards its south magnetic pole in the Northern Hemisphere. Such a field is known

as a dipole field. The intensity of the Earth’s magnetic field is 60,000 gammas at the

poles and 30,000 gammas at the magnetic equator, i.e., 0.6 gauss and 0.3 gauss,

respectively. One more aspect of the Earth’s magnetic field that must be considered is

the so-called diurnal variation. Because of ionic currents in the atmosphere, as well as

for a number of other reasons, the Earth’s magnetic field is not constant in time. It

exhibits a slow annual change of 0.1 to 0.3 percent in various geographical areas. The

field has a slow annual change in direction as well. The general trend is a diurnal

variation, dropping down during the middle of the day. Superimposed on this are short

time fluctuations whose severity may be sizeable during periods of magnetic storms. The

Earth’s magnetic field is within the influence of the sun’s comparatively gigantic

magnetic field. The space outside the magnetic field of the Earth is dominated by the

sun’s field and by a constant stream of free ions and electrons that flows from the sun,

called the solar wind. Changes in the sun’s magnetic field affect the Earth’s field

dramatically. The sun’s influence is apparent at the Earth’s surface as low frequency

variations that can have high amplitude. Different levels of solar activity can result in

changes of several hundred gammas in the course of a few hours; however, diurnal

effects do not significantly alter the localized magnetic gradients. So magnetometers

collecting data within a local area as small as 30-50 miles will show the same diurnal

influence.
F-4

F.1.2. Induced Magnetism

This is the principal phenomenon that makes most ferrous material detection and

location possible with magnetic surveys. The earth’s magnetic field establishes a

secondary magnetic field surrounding the ferrous object. This disturbance is measurable

when a sensor is within the area of the object’s magnetic signature or duration. The

intensity and range of the local magnetic field alteration is based on the magnetic

susceptibility as well as the size and shape of the object. Since induced magnetism is the

combined effects of the magnetic property of the material, the Earth’s magnetic field, and

the shape and orientation of the object in the Earth’s magnetic field, if this magnetic

susceptibility value is very high the material is described as being ferromagnetic, which is

true for most types of ordinary iron or steel or even iron-rich clay material deposited out

of suspension in a marine environment. These factors cause the material to act as a

magnet in the presence of the Earth’s magnetic field. In addition, the shape and the

orientation of an object also tend to enhance induced magnetism: longer objects that are

orientated parallel to the Earth’s magnetic field produce stronger magnetic fluctuations

than shorter ones.

F.1.3. Permanent Magnetization

Permanent magnetization is the property of the material which is related only to

the object, not to the Earth’s magnetic field, nor the orientation or the shape of the object.

Permanent magnetization, also referred to as permeability, is a property of the metallurgy

and the thermal and mechanical history of the object; usually the harder the metal, the

higher the permeability. Some objects become more magnetized if sufficiently

mechanically shocked in the presence of the Earth’s magnetic field or simply by

remaining at a fixed orientation in the Earth’s magnetic field over a long period of time.

Alternately, some objects will lose their permeability if heated. For most objects of a

search, the permanent magnetism is much greater than induced magnetism. In actual

practice, the magnetic disturbance or anomaly which is observed on the magnetometer

will be the sum of both the permanent and induced magnetism effects.

F.2. Magnetometer Types

Since early experiments with magnetometers in the late 1950s, the technology and

development of these instruments have been nothing short of profound. From the early

Varian models such as the V-85 followed by the SeaMag series, Barringer, and the

Geometrics 816 and 806, to today’s sophisticated optically pumped and computer-driven

magnetometers, performance, reliability and accuracy have greatly improved. In order to

fully discuss these instruments we must subdivide them into two categories based on

performance and principle of operation: 1) vector magnetometers, which detect and

measure magnetic fluctuations in a specific direction or vector in a three-dimensional

space, and 2) quantum magnetometers, which measure the magnitude of the vector

passing through the sensor regardless of direction. Quantum magnetometers are the

instruments mostly utilized in geophysical and archaeological surveys as well as search

and recovery surveys.
F-5

Quantum magnetometers are in turn subdivided into three categories based on the

method used in the polarization of subatomic particles such as nuclei or outer electrons.

There are three different methods of polarization used in quantum magnetometers. These

three methods are:

1- Introduction of a strong magnetic field.

2- Transferring the natural polarization from electrons to nuclei (proton).

3- Optical pumping and de-pumping of electrons.

Each polarization method produces a different instrument with varying degrees of

performance level as characteristic limitations. The three primary resulting

magnetometers are called free precession or proton precession magnetometers,

Overhauser magnetometers, and Cesium magnetometers. As was discussed earlier each

magnetometer sensor design and technology has some advantages and disadvantages.

The only way to objectively compare them is to study the technical specifications of each

manufacturer and each model. This is somewhat confusing, as there are no set standards

of system performance parameters that are followed by all manufacturers. Therefore one

has to study the individual technical data sheets of each make and compare things like

sensor sensitivity, sampling rate, resolution, and susceptibility of the design to dead zones

and heading errors. To that end, there are several terms that manufacturers use to

describe the specifications of their instruments; we shall attempt to define some of these

terms as they relate to marine magnetics.

1-Resolution: This term defines the smallest change in a given magnetic field that a

magnetometer can detect. For example, a magnetometer that has a resolution of

0.001 can measure a magnetic fluctuation between 48927.639 and 48927.640. It is

obvious that the higher the resolution, the more the instrument is able to detect even

the smallest targets.

2-Noise: Noise is defined as the change in a magnetic measurement, which is not

caused by variations in a specific magnetic field. Noise is typically reported as the

number of gammas per square root hertz.

3-Heading Errors: This term refers to the variation of the strength of the magnetic

field resulting from a change in the orientation of the magnetometer sensor.

4-Dead Zones: A Dead Zone is the angle between the magnetic field and the axis of

the magnetometer sensor (Figure F-1). If the sensor does not detect any magnetic

variations, the sensor is referred to as being in a “dead zone.”
F-6

80°

70°

DEAD ZONE

ACTIVE ZONE

SENSOR AXIS

SENSOR HEAD

Figure F-1. Schematic of a magnetometer’s dead zone. This drawing was obtained from a

Geometrics technical report titled Cesium Optically Pumped Magnetometers, Basic

Theory of operation, written by Kenneth Smith in February 1997.

F.2.1. Proton Magnetometers

There are two types of proton magnetometers in use, the free precession and the

Overhauser magnetometer. Although their polarization methods are very different, the

common denominator between proton magnetometers is the use of the nuclear properties

of hydrogen nuclei or protons contained within a sample of hydrocarbon fluid. The

hydrogen proton properties of charge, atomic mass and spin allow for the accurate

calculation of the gyromagnetic ratio to within ten parts per billion. The proton

gyromagnetic ratio is 2.67515341 x 10(8) Radians/sec/Tesla with a standard error of

0.00000011 x 10 (8) Radians/sec/Tesla. A constant of 23.48719622nT/Hz is used to

convert frequencies to magnetic field values.

Free precession proton magnetometers. For decades the standard for marine oil

exploration magnetometers has been the proton precession technology. Such instruments

have proven robust under demanding field conditions, but data has been subject to

limitation in resolution due to a combination of measurement technology, external noise

sources and sampling limitations. The theory of operation of these devices is quite

simple: a magnetic field is created by introducing a strong electric current through a wire

coil immersed in a sample rich in hydrogen. This field, which is more intense than the

Earth’s own magnetic field at that point, polarizes the hydrogen protons away from their

normal alignment with the earth’s magnetic field. When the polarizing current is turned

off, the protons begin to spin away from this temporary artificial alignment and into their

normal alignment within the Earth’s magnetic field. This spinning movement generates a
F-7

weak electrical current referred to as a precession signal, which is received by the same

polarizing coils in the sensor. The frequency at which these protons precess is directly

proportional to the intensity of the magnetic field in which this polarization occurs. The

precession signal is measured from less than .01 to two seconds and allows sensitivities

of up to .05 gamma and a sampling rate of up to two readings per second.

One of the pitfalls of this method is that if the polarization occurs in a single coil

system, a blind spot or a dead zone will appear when the coil’s axis is aligned with the

magnetic field vector. This problem can be rectified with the use of three omnidirectional coils arranged at 120 degrees from each other. One of the most significant

limitations of this early sensor design which is found in both the Geometrics 801 and 866

models is that they will not physically sink below 225 feet below the water surface,

regardless of how much tow cable is deployed. This does not allow the sensor to be

within the MMS specification of being within six meters of the seafloor, which prohibits

good data collection in deeper waters. Most models of proton magnetometers such as the

G-866, which was employed in Task 3 (Figure F-2), are comprised of a hydrocarbonfilled sensor, a tow cable, and a topside console where signal processing and

amplification is achieved. An external printer is utilized to print the collected data. The

G-866 is probably the most well-known and widely used magnetometer of this type and

vintage.

Figure F-2. While not completely obsolete, the G-866 is no longer being produced and is being

replaced with newer models by many companies.
F-8

Improvements in digital and computer technology have resulted in the production

of advanced models of proton magnetometers such as the G-886 and G-877. The most

significant features of these latter units, in addition to their ability to “fly” closer to the

seafloor, is that the signal is processed internally in the sensor and transmitted to a topside computer where it can be stored along with the navigation data. Since the signal

processing and amplification is done in the sensor prior to being sent up through the tow

cable, it significantly reduces external noise from ship engines and electronics. In

addition, the utilization of a computer to store navigation data allows subsequent

interpretation of the data and particularly pinpointing the geographic locales where

magnetic anomalies or fluctuations were detected. Employed in Task 3, the G-877

illustrated below is the company’s shallow water proton precession replacement for the

G-866 that employs these design features (Figure F-3).

Figure F-3. Geometrics’ G-877 proton precession

marine magnetometer used in Task 3.

Proton precession magnetometers are relatively accurate instruments; however,

they have very limited sampling rate capabilities (no more than twice per second). Their

low price and maintenance cost have prolonged their useful life span; they are still in use

world-wide for a variety of ferromagnetic detection surveys. Proper care should always

be exercised during the disposal of the hydrocarbon fluid in the sensor in order to avoid

contamination of the surrounding environment.

Overhauser effect proton magnetometers. The only difference between these

magnetometers and free precession magnetometers is the method of polarization. A high

frequency RF signal provides the energy to get the protons processing and keep them

processing. This method produces a continuous signal, allowing a much faster repetitive
F-9

rate (up to five readings per second) when compared to the free precession

magnetometers.

Because of the physical nature of the proton, there is an error in the field strength

measurements of approximately 25 gammas; however, this can be corrected through

careful design of the electronics. The band width and noise performance will be slightly

better than that of the free precession magnetometer, but about a factor of 100x poorer

than the cesium magnetometer. The frequency of the signal produced in the cesium

magnetometer is over 80x higher than that produced by the Overhauser effect (between

900 Hz to 4000 Hz). This low frequency is in large part responsible for the poorer

performance of the Overhauser. In addition, both free precession and Overhauser

magnetometers are subject to noise caused by Doppler shift of the pick-up coils with

respect to the processing protons in the operating fluid.

 Good examples of Overhauser effect magnetometers are the current production

models from GEM Systems and Marine Magnetics of Ontario, Canada. The latter’s

SeaSPY® marine magnetometer was employed in Task 3 and is illustrated below (Figure

F-4). The tow fish contains the digitizing electronics where signal processing and

amplification takes place, which means that the signal is measured at its peak and is

immune from external noise sources. They are very sensitive (.015 gamma) and by virtue

of their sensor design, have virtually no heading errors or dead zones; in addition, they do

not display any temperature drift.

Figure F-4. Marine Magnetics’ “SeaSPY” Overhauser effect marine magnetometer used in Task 3.
F-10

F.2.2. Optically Pumped Magnetometers

This group can be subdivided into swept magnetometers and self-oscillating

magnetometers. Both classes utilize the properties of the electron from one of four active

materials: potassium, rubidium, cesium, and helium. Although similar in theory of

operation, the performance of these magnetometers depends on the material used. This

discussion will be limited to the cesium version since the production and use of the other

materials in the marine environment is very limited and rare. Ideal for both marine and

airborne surveys, the cesium units offer very good sensitivity with high resolution.

 The cesium atom contains a single electron in its outermost orbit. Electrons are a

subatomic particle with a spin and a negative electrical charge and thus a very small

magnetic movement or resonance. This movement allows for variability in the energy of

the electron depending on the direction of its spin axis as it relates to a given surrounding

magnetic field vector. The theory of optically pumped magnetometers, including cesium

vapor units, relies on these physics principles. The strength of that magnetic field equals

the change in the electron energy divided by an atomic constant. In the case of cesium

there are only nine possible orientations with associated energy levels. The difference in

these energy levels will always be proportional to the strength of the present magnetic

field. Optically pumped magnetometers typically operate on much higher frequencies

than proton magnetometers (70 to 350KHZ versus 0.9K to 4.5KHZ). These higher

frequencies should provide faster repetitive rates (up to 10 readings per second) and

accurate signal processing. It is worth noting that the cesium utilized in these

magnetometers is non-radioactive and has no health hazard risks.

The pitfalls in the cesium magnetometers, however, lie in their inherent

susceptibility to natural heading errors and dead zones (polar and equatorial). Dead

zones occur when the ambient magnetic field passes through the magnetometer sensor at

an angle between zero and 10 degrees. This phenomenon is very prominent at the

equatorial and polar regions. Due to the physics of the measuring process in optically

pumped magnetometers, they all suffer from phenomenon referred to as heading errors.

This occurs when the angle of the magnetic field passes through the sensor head. There

are many highly technical causes for this phenomenon; however, their discussion is

beyond the scope of this document. Heading errors in cesium magnetometers have been

corrected through the development of better optics as well as the readjustment of the

alignment of the optical component. These techniques have reduced heading errors to

less than 0.1 gamma.

Geometrics produces two cesium magnetometer models: the G-880 is designed

for deeper water (up to 10,000 feet), and the G-881 shown in Figure F-5 and employed in

Task 3, primarily targeted for shallower water operation. Both systems consist of a

sensor fish, coaxial tow cable and a topside computer for data storage and interpretation.
F-11

Figure F-5. Geometrics’ 881 cesium marine

magnetometer employed in Task 3.

F.3. Employment of Magnetometers in the Gulf’s Oil and Gas Industry

There are many different makes and models of magnetometers available to the

various survey groups and oil and gas companies who actively work across the Gulf of

Mexico. In an effort to determine which instruments were and are being employed by the

industry, several groups were contacted to see which instruments they own and operate

for the many different types of survey projects they conduct in the Gulf. After

discussions with some of these companies it became apparent that, as with any other type

of business, there are certain philosophical positions as well as practical factors that

determine which survey equipment each group prefers to use. It should be stated that not

all groups or survey companies were contacted, but the ones that were offered a very

homogenous understanding of past, current and future magnetometer types that are and

will be employed in the Gulf.

F.3.1. John Chance and Associates (FUGRO)

Currently this company employs several Geometrics proton precession

magnetometers, including the G-801/803 and the G-866. These instruments have been

used by this company throughout its history with very satisfactory results. The
F-12

availability of in-house spare parts, the familiarity of the company’s technicians of these

models and their unique repair predecessors, and the offshore staff’s experience and

knowledge of how to best deploy and operate them have all contributed to the relatively

long period of deployment of these units. Mr. Ted Hampton with FUGRO Geoservices

has indicated, however, that his company will be replacing some of its aging proton

precession units with newer Overhauser proton magnetometers from GEM systems. This

decision was based in part on the fact that Geometrics will no longer support the G-801

series consoles with spare parts, although parts for the tow system, including the sensor,

will continue to be available. In addition, the G-866, which was mainly used in shallow

water in smaller vessels due to its compact size, was phased out and parts are no longer

are available, particularly the plastic gears used in its printer head which required

frequent replacement.

F.3.2. C &C Technologies, Inc.

This company has been on the forefront of the cesium technology since its

inception during the mid-1990s. According to Mr. Arlen Lejune, his company owns and

operates twelve Geometrics model G-880 and G-881 cesium magnetometers. They have

collected excellent magnetometer data in all water depths, from a few feet deep to full

ocean depth.

F.3.3. Gulf Ocean Services, Inc.

This contractor performs block clearances and pipeline preliminary surveys across

the shelf edge. All of the magnetometer data is collected utilizing a Geometrics 801/803

proton precession magnetometer. Mr. Donald Trout, the general manager of Gulf Ocean

Services, indicated that this instrument has been able to meet all MMS specifications

regarding noise levels of +/-1.5 gammas. In addition, the survey crew’s familiarity of the

maintenance and repair of this magnetometer have all contributed to its continued use.

F.3.4. Cochrane Technologies, Inc.

Cochrane Technologies currently owns and operates four Geometrics 801/803

proton precession magnetometers. In addition, a Geometrics G-866 magnetometer is

utilized in shallow water work on smaller vessels. However, in recent projects the

company has opted to deploy a G-881 cesium magnetometer. According to Mr. Kevin

Burdeaux, his company is going to make the transition to cesium magnetometers because

of the superior data quality his offshore crews have been able to obtain with these

instruments.

F.3.5. Racal/NCS/KC Offshore

Until their recent merger, these two firms operated several Geometrics G-801

proton precession magnetometers.
F-13

F.3.6. Harvey-Lynch

Harvey-Lynch serves offshore and other related industries by providing

equipment sales, rentals, as well as repairs and refurbishment of a variety of

instrumentation. These instruments include (but are not limited to) acoustic positioning

equipment, bathymetric equipment, echo sounders, GPS, magnetometers, sidescan sonar,

and telemetry systems.

The first question posed to Harvey-Lynch concerned the current use, if any, of the

G-866. Mentioned above, the G-866 was the longtime favorite for all types of

magnetometer surveys in the GOMR. Asked about the current use of the G-866, HarveyLynch stated that they have not shipped out one of these instruments in almost a year,

although they have some in their rental pool (Larry Stephenson, personal communication

June 2002). While a couple of these units have recently been sold to third-world

countries due to their low cost (around $5,000 for a used system), their use in the industry

today has been eclipsed by advancements in magnetometer technology.

As with any antiquated system, the G-866 has had its share of problems. When

asked about the most common problem with the G-866, Harvey-Lynch responded that

cable problems were the most prevalent. Other less prevalent problems include console

and/or electrical trouble. It should be addressed here that numerous problems with the G866 occurred during the current investigations. The first problem occurred prior to

running the grid lines over the Rhoda site. While configuring the Hypack system at the

dock the towfish heated up, expanding the fluid inside, resulting in blown bulkheads on

either end. While this can be attributed to operator error and not the equipment itself, it

illustrates the potential for problems in the field. The blown bulkheads needed to be

pulled out and replaced, resulting in the loss of one day of work.

Besides the blown bulkheads, the G-866 has had numerous console problems.

Console problems usually consist of electrical malfunctions or print head failure. While

the more modern magnetometers are computer-driven, the G-866 relies on a stand-alone

console complete with all electronics, resulting in the potential for more problems,

especially in a marine environment.

Noise within the data is yet another problem with the G-866. While the newer

magnetometers are accurate within tenths of gammas, the data collected by the G-866

tended to be much noisier (±5 gammas) depending on the direction of the track line.

While running north-south track lines over the Josephine, the data collected was much

noisier running north (into the swell) versus that collected running south (with the swell).

Noisy data can often result in difficulty identifying smaller anomalies. While it is

possible to reduce noise to some extent (i.e., grounding the console, extending the tow

cable, filling the towfish with adequate amounts of fluid), the problem illustrates yet

another limitation when dealing with antiquated equipment.

In summary, magnetometer development over the last ten to fifteen years has

benefited greatly from the recent advancements in electronic circuitry innovations,
F-14

computer programs, as well as the global positioning accuracy. These advances have

resulted in better sensors and processors. Not only have the sensing capabilities of these

instruments improved, signal processing and subsequent data interpretation have also

been enhanced. The digital collection and storing of magnetometer data, along with

precise navigation data, allows for very accurate post-processing of anomalies and

therefore the locating of ferromagnetic material. A summary of the features and

recommended applications of quantum magnetometers follows:

1- Although optically pumped magnetometers can be produced by using four electron

resonance vapors (cesium, potassium, rubidium, and helium), we concentrated on the

cesium version since it accounts for most of the production of this sensor technology.

These units offer very good sensitivity with high resolution and fast repetitive rate (up

to ten readings per second). They are ideal for both marine and airborne

magnetometer surveys.

2- Overhauser magnetometers produced by GEM Systems and by Marine Magnetics

offer nearly the same sensitivity as the cesium magnetometers, particularly at

moderate speeds. In addition, this sensor design produces very accurate readings and

is inherently immune to dead zones and heading errors. Simple design and low cost

are additional benefits of this system of magnetic detection. Marine and

archaeological surveys, as well as oil and gas development surveys, are some of the

applications Overhauser magnetometers are well suited for.

3- Proton precession magnetometers are very simple to operate and maintain;

however, their sensor design is affected by heading errors, noise caused by the sensor

head swimming or wobbling down the survey line, and they have lower sensitivity

than both the Overhauser and cesium sensors with relatively slow sampling rates.

Even with these limitations this sensor design continues to evolve, as evidenced by

the multitude of newer models being marketed by firms such as Geometrics and JW

Fisher. Proton precession magnetometers are generally placed at the end of

competing magnetometer technology, and are best suited for low-speed ground

surveys and shallow water marine surveys where the low cycling rate will not be a

problem.
APPENDIX G

TASK 3 SURVEY EQUIPMENT
G-3

G.1. Survey Equipment

Trimble AgGPS 132 Receiver. Providing sub-meter differential GPS accuracy

for offshore surveys, the Trimble AgGPSTM 132 differential GPS receiver utilizes The

ChoiceTM technology (Figure G-1). This technology combines a GPS receiver, a beacon

differential receiver and a satellite differential receiver in the same housing. These

receivers use a combined antenna with a single antenna cable. This configuration greatly

improves the accuracy, reliability and availability of differential GPS corrections. The

medium frequency (MF) beacon receiver uses the broadcasts from governmentestablished navigation beacon reference stations around the world. The L-band satellite

differential correction receiver requires a subscription to a differential correction service

and provides multiple vendor support. A built-in virtual reference station (VRS) permits

the satellite corrections to be uniformly accurate over the entire satellite coverage area,

without the degradation in accuracy associated with increasing distance from fixed

reference stations.

The AgGPS 132 combination DGPS receiver with The ChoiceTM technology

status of DGPS corrections can be determined easily for either of the two built-in

differential correction receivers, or from an external differential correction source. To

ensure that the AgGPS 132 can be powered from the machine’s power system, it operates

over an input voltage range of 10 to 32 volts. The AgGPS 132 is easy to install and

connects to a wide range of precision maritime equipment.

Figure G-1. Trimble AgGPSTM 132 differential GPS receiver used during the Task 3

survey (courtesy of Trimble).
G-4

The receiver can output industry-standard NMEA 0183 messages. The userselectable outputs include position, velocity, navigation, and status information. The

standard configuration outputs positions once per second with very low latency. For

applications on faster-moving vehicles, the AgGPS 132 can optionally output 10

positions per second, with latency of less than 100 ms.

The L-band satellite receiver uses a Trimble-developed sensitive design to

provide coverage across the entire satellite footprint. The MF beacon differential

correction receiver built into the AgGPS 132 is a dual channel, all-digital, low noise

design allowing it to receive corrections at distances of hundreds of miles from the

reference stations.

The AgGPS 132 includes a high accuracy 12-channel GPS engine with improved

ionosphere and troposphere models. It provides sub-meter differential position accuracy

and offers differential speed accuracy of better than 0.1 mile per hour (0.16 kph), thus

eliminating the need for an external speed sensor. The positions are computed using

robust differential processing techniques, allowing operation to begin a few seconds after

switching on the machine.

SG Brown Meridian Gyrocompass. The SG Brown Meridian is an accurate

gyrocompass, which is easy to use and simple to integrate into navigation systems

(Figure G-2). Outputs include RS232, RS422, 20mA Current Loop, Stepper and

Synchro. Latitude and speed compensation can be entered either by the top panel

controls or from a navigation computer via the RS232 interface. The Meridian is also

IMO Wheelmark and HSC certified.

Figure G-2. The SG Brown Meridian gyrocompass.
G-5

The heart of the Meridian gyroscope is its element, which is a dynamically tuned

gyrosphere (DTG). Used for many applications, the DTG incorporates high precision

technology, allowing for accuracy, reliability, and shock resistance. The accuracy of the

unit is realized through specialized, high-quality engineering and sophisticated high

speed post-processing. The result provides an exceedingly stable heading and the ability

to follow a high turn rate of up to 200° per second.

Hypack MAX. Hypack® is PC-based Windows software for planning,

conducting, editing and publishing hydrographic surveys. Hypack® MAX contains tools

to quickly design a survey and display results. Its powerful drawing engine can display

background files in DXF, DGN, TIF, S-57, BSB raster, C-Map, and VPF files at any

rotation and scale. Design tools allow the user to quickly create planned lines (Figure G3). Hypack® MAX automatically stores information to a project directory, allowing the

user to set up new surveys or to quickly switch to an existing survey.

Figure G-3. Hypack® MAX allows for the quick placement of tracklines with the correct offsets.

Hypack® MAX’s SURVEY program supports GPS, Range-Azimuth, and RangeRange navigation systems. It supports single beam, dual frequency, multiple transducer,

and multi-beam echosounders, along with gyros, magnetometers, telemetry tide gauges,

and other survey devices. The SURVEY program can be configured to display and track

single vessels, multiple vessels, or the main vessel and ROVs or towfish.

Hypack® MAX’s graphical editing routines allow quick editing of survey data.

Water level corrections can be automatically determined using RTK GPS water level
G-6

techniques, telemetry tide gauges, manual observations, or downloaded from NOAA web

sites. Sound velocity corrections can be applied. Users can quickly review and edit

individual points or blocks of data. Hypack® MAX’s “Field to Finish” process allows the

user to automatically remove data spikes, perform final sounding selection, and generate

smooth sheets or export info to CAD before going into the field.

Hypack® MAX has a variety of final product programs. The Cross Section and

Volume program is the standard used by the U.S. Army Corps of Engineers for

calculation of dredge volume quantities throughout the USA. The Surface Modeling

program generates 3-D models, contours, and also computes volumes between surfaces

for beach erosion studies. The Export program allows users to import Hypack® MAX

data into CAD and GIS packages in either DXF or DGN format.
INFORMATION IN THIS APPENDIX IS NOT AVAILABLE FOR 

PUBLIC DISCLOSURE 

APPENDIX H 

GRID TRANSECT COORDINATES FOR THE JOSEPHINE AND RHODA
APPENDIX I

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

JOSEPHINE 25-METER SURVEY INTERVAL GRID
SEASPY JOSEPHINE LINE 1 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

 JOSEPHINE LINE 1 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 1 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154

 JOSEPHINE LINE 1 25-M GRID

91 229 267 305 343 381 419 457 495 533 571 609 647 685 723 761

I-2
6 JOSEPHINE LINE 2 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 JOSEPHINE LINE 2 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

 JOSEPHINE LINE 2 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 2 25-M GRID

4915049160491704918049190492004921049220492304924049250

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421 442

I-3
 JOSEPHINE LINE 3 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

G-877 JOSEPHINE LINE 3 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

 JOSEPHINE LINE 3 25-M GRID

6 259 302 345 388 431 474 517 560 603 646 689 732 775 818 861 904

SEASPY JOSEPHINE LINE 3 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 15 29 43 57 71 85 99 113 127 141 155 169 183 197 211 225 239 253 267 281

I-4
 JOSEPHINE LINE 4 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 JOSEPHINE LINE 4 25-M GRID

492004925049300493504940049450

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248 261

 JOSEPHINE LINE 4 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 4 25-M GRID

491604918049200492204924049260

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

I-5
 JOSEPHINE LINE 5 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 5 25-M GRID

4915049160491704918049190492004921049220492304924049250

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

 JOSEPHINE LINE 5 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 5 25-M GRID

4914049150491604917049180491904920049210492204923049240

1 27 53 79 105 131 157 183 209 235 261 287 313 339 365 391 417 443 469 495 521

I-6
6 JOSEPHINE LINE 6 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 JOSEPHINE LINE 6 25-M GRID

4915049160491704918049190492004921049220492304924049250

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

 JOSEPHINE LINE 6 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881 925

SEASPY JOSEPHINE LINE 6 25-M GRID

490404905049060490704908049090491004911049120491304914049150491604917049180491904920049210492204923049240

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

I-7
G-877 JOSEPHINE LINE 7 25-M GRID

491004912049140491604918049200492204924049260

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241 253

 JOSEPHINE LINE 7 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

 JOSEPHINE LINE 7 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 7 25-M GRID

4904049060490804910049120491404916049180492004922049240

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

I-8
 JOSEPHINE LINE 8 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 JOSEPHINE LINE 8 25-M GRID

420004250043000435004400044500450004550046000465004700047500480004850049000495005000050500510005150052000

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

 JOSEPHINE LINE 8 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 8 25-M GRID

475004800048500490004950050000

1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401

I-9
 JOSEPHINE LINE 9 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 9 25-M GRID

3500036000370003800039000400004100042000430004400045000460004700048000490005000051000

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

 JOSEPHINE LINE 9 25-M GRID

01 241 281 321 361 401 441 481 521 561 601 641 681 721 761 801

SEASPY JOSEPHINE LINE 9 25-M GRID

460004700048000490005000051000520005300054000550005600057000

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

I-10
G-877 JOSEPHINE LINE 10 25-M GRID

40000410004200043000440004500046000470004800049000500005100052000

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241 253

 JOSEPHINE LINE 10 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

 JOSEPHINE LINE 10 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY JOSEPHINE LINE 10 25-M GRID

4500046000470004800049000500005100052000530005400055000

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441 463

I-11
 JOSEPHINE LINE 11 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

G-877 JOSEPHINE LINE 11 25-M GRID

48700488004890049000491004920049300

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229

 JOSEPHINE LINE 11 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY JOSEPHINE LINE 11 25-M GRID

485004860048700488004890049000491004920049300

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

I-12
 JOSEPHINE LINE 12 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 JOSEPHINE LINE 12 25-M GRID

491604918049200492204924049260

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 12 25-M GRID

96 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

SEASPY JOSEPHINE LINE 12 25-M GRID

491204914049160491804920049220

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

I-13
 JOSEPHINE LINE 13 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 13 25-M GRID

4922049230492404925049260

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229

 JOSEPHINE LINE 13 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821 862

SEASPY JOSEPHINE LINE 13 25-M GRID

4917549180491854919049195492004920549210492154922049225

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

I-14
G-877 JOSEPHINE LINE 14 25-M GRID

4920049220492404926049280493004932049340

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 14 25-M GRID

11 253 295 337 379 421 463 505 547 589 631 673 715 757 799 841

SEASPY JOSEPHINE LINE 14 25-M GRID

4917049190492104923049250

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

 JOSEPHINE LINE 14 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

1-15
 JOSEPHINE LINE 15 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 15 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 15 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821 862

SEASPY JOSEPHINE LINE 15 25-M GRID

4916049170491804919049200492104922049230

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

I-16
 JOSEPHINE LINE 16 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 16 25-M GRID

489004895049000490504910049150492004925049300

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 16 25-M GRID

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY JOSEPHINE LINE 16 25-M GRID

48850489004895049000490504910049150492004925049300

1 30 59 88 117 146 175 204 233 262 291 320 349 378 407 436 465 494 523 552 581

I-17
 JOSEPHINE LINE 17 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 JOSEPHINE LINE 17 25-M GRID

45000460004700048000490005000051000

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 17 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY JOSEPHINE LINE 17 25-M GRID

4500046000470004800049000500005100052000

1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401

I-18
 JOSEPHINE LINE 18 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 JOSEPHINE LINE 18 25-M GRID

4890049000491004920049300

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 18 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY JOSEPHINE LINE 18 25-M GRID

48500486004870048800489004900049100492004930049400

1 38 75 112 149 186 223 260 297 334 371 408 445 482 519 556 593 630 667 704 741

I-19
 JOSEPHINE LINE 19 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

G-877 JOSEPHINE LINE 19 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

 JOSEPHINE LINE 19 25-M GRID

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY JOSEPHINE LINE 19 25-M GRID

4920049210492204923049240492504926049270492804929049300

1 24 47 70 93 116 139 162 185 208 231 254 277 300 323 346 369 392 415 438 461

I-20
APPENDIX J

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

JOSEPHINE 30-METER SURVEY INTERVAL 4-KNOT GRID
SEASPY JOSEPHINE LINE 1 30-M 4 KNOT

491354914549155491654917549185491954920549215492254923549245492554926549275

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

JOSEPHINE LINE 1 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

JOSEPHINE LINE 1 30-M 4 KNOT

11 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

G-877 JOSEPHINE LINE 1 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

J-2
JOSEPHINE LINE 2 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70

G-877 JOSEPHINE LINE 2 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109

JOSEPHINE LINE 2 30-M 4 KNOT

1 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441 463

SEASPY JOSEPHINE LINE 2 30-M 4 KNOT

491354914549155491654917549185491954920549215492254923549245492554926549275

1 19 37 55 73 91 109 127 145 163 181 199 217 235 253 271 289 307 325 343 361

J-3
JOSEPHINE LINE 3 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61

G-877 JOSEPHINE LINE 3 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

JOSEPHINE LINE 3 30-M 4 KNOT

16 139 162 185 208 231 254 277 300 323 346 369 392 415 438 461

SEASPY JOSEPHINE LINE 3 30-M 4 KNOT

491104912049130491404915049160491704918049190492004921049220492304924049250

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

J-4
JOSEPHINE LINE 4 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

G-877 JOSEPHINE LINE 4 30-M 4 KNOT

49100491204914049160491804920049220492404926049280

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

JOSEPHINE LINE 4 30-M 4 KNOT

16 139 162 185 208 231 254 277 300 323 346 369 392 415 438 461

SEASPY JOSEPHINE LINE 4 30-M 4 KNOT

49040490604908049100491204914049160491804920049220

1 20 39 58 77 96 115 134 153 172 191 210 229 248 267 286 305 324 343 362 381

J-5
JOSEPHINE LINE 5 30-M 4 KNOT

16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61

G-877 JOSEPHINE LINE 5 30-M 4 KNOT

4500046000470004800049000500005100052000

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

JOSEPHINE LINE 5 30-M 4 KNOT

11 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

SEASPY JOSEPHINE LINE 5 30-M 4 KNOT

420004300044000450004600047000480004900050000510005200053000540005500056000

1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401

J-6
JOSEPHINE LINE 6 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70

G-877 JOSEPHINE LINE 6 30-M 4 KNOT

3500037000390004100043000450004700049000510005300055000

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

JOSEPHINE LINE 6 30-M 4 KNOT

01 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401

SEASPY JOSEPHINE LINE 6 30-M 4 KNOT

4500047000490005100053000550005700059000

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

J-7
JOSEPHINE LINE 7 30-M 4 KNOT

16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61

G-877 JOSEPHINE LINE 7 30-M 4 KNOT

40000410004200043000440004500046000470004800049000500005100052000

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

JOSEPHINE LINE 7 30-M 4 KNOT

06 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

SEASPY JOSEPHINE LINE 7 30-M 4 KNOT

45000470004900051000530005500057000

1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401 421

J-8
JOSEPHINE LINE 8 30-M 4 KNOT

9 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79

G-877 JOSEPHINE LINE 8 30-M 4 KNOT

489004895049000490504910049150492004925049300

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127

JOSEPHINE LINE 8 30-M 4 KNOT

01 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401 421

SEASPY JOSEPHINE LINE 8 30-M 4 KNOT

4890048950490004905049100491504920049250

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

J-9
JOSEPHINE LINE 9 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61

G-877 JOSEPHINE LINE 9 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127

JOSEPHINE LINE 9 30-M 4 KNOT

06 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

SEASPY JOSEPHINE LINE 9 30-M 4 KNOT

49130491404915049160491704918049190492004921049220492304924049250

1 20 39 58 77 96 115 134 153 172 191 210 229 248 267 286 305 324 343 362 381

J-10
G-877 JOSEPHINE LINE 10 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127

JOSEPHINE LINE 10 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

JOSEPHINE LINE 10 30-M 4 KNOT

06 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

EVENT MARKER

SEASPY JOSEPHINE LINE 10 30-M 4 KNOT

4919049200492104922049230492404925049260492704928049290

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

J-11
66 G-877 JOSEPHINE LINE 11 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

JOSEPHINE LINE 11 30-M 4 KNOT

01 121 141 161 181 201 221 241 261 281 301 321 341 361 381 401

SEASPY JOSEPHINE LINE 11 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 19 37 55 73 91 109 127 145 163 181 199 217 235 253 271 289 307 325 343

JOSEPHINE LINE 11 30-M 4 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

J-12
APPENDIX K

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

JOSEPHINE 30-METER SURVEY INTERVAL 7-KNOT GRID
JOSEPHINE LINE 1 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 JOSEPHINE LINE 1 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241 257 273 289 305

JOSEPHINE LINE 1 30-M 7 KNOT

22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

SEASPY JOSEPHINE LINE 1 30-M 7 KNOT

4913549155491754919549215492354925549275

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409

K-2
JOSEPHINE LINE 2 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 JOSEPHINE LINE 2 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85

JOSEPHINE LINE 2 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

SEASPY JOSEPHINE LINE 2 30-M 7 KNOT

4917549185491954920549215492254923549245492554926549275

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

K-3
JOSEPHINE LINE 3 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 JOSEPHINE LINE 3 30-M KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85

JOSEPHINE LINE 3 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

SEASPY JOSEPHINE LINE 3 30-M 7 KNOT

4918049190492004921049220492304924049250492604927049280

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

K-4
JOSEPHINE LINE 4 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

JOSEPHINE LINE 4 30-M 7 KNOT

6 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

G-877 JOSEPHINE LINE 4 30-M 7 KNOT

492004924049280

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85

SEASPY JOSEPHINE LINE 4 30-M 7 KNOT

4908049120491604920049240

1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191 201

K-5
JOSEPHINE LINE 5 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 JOSEPHINE LINE 5 30-M 7 KNOT

482004870049200

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85

JOSEPHINE LINE 5 30-M 7 KNOT

81 97 113 129 145 161 177 193 209 225 241 257 273 289 305

SEASPY JOSEPHINE LINE 5 30-M 7 KNOT

450004550046000465004700047500480004850049000495005000050500510005150052000

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

K-6
G-877 JOSEPHINE LINE 6 30-M 7 KNOT

30000320003400036000380004000042000440004600048000500005200054000

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79

JOSEPHINE LINE 6 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

SEASPY JOSEPHINE LINE 6 30-M 7 KNOT

43000450004700049000

1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154 163 172 181

JOSEPHINE LINE 6 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

K-7
JOSEPHINE LINE 7 30-M 7 KNOT

3 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

G-877 JOSEPHINE LINE 7 30-M 7 KNOT

4500046000470004800049000500005100052000

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

JOSEPHINE LINE 7 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

SEASPY JOSEPHINE LINE 7 30-M 7 KNOT

42000430004400045000460004700048000490005000051000520005300054000

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

K-8
JOSEPHINE LINE 8 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 JOSEPHINE LINE 8 30-M 7 KNOT

4908049130491804923049280

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

JOSEPHINE LINE 8 30-M 7 KNOT

1 85 99 113 127 141 155 169 183 197 211 225 239 253 267 281 295

SEASPY JOSEPHINE LINE 8 30-M 7 KNOT

488504890048950490004905049100491504920049250

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210

K-9
JOSEPHINE LINE 9 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 JOSEPHINE LINE 9 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

JOSEPHINE LINE 9 30-M 7 KNOT

81 97 113 129 145 161 177 193 209 225 241 257 273 289 305

SEASPY JOSEPHINE LINE 9 30-M 7 KNOT

4919049200492104922049230492404925049260492704928049290

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

K-10
JOSEPHINE LINE 10 30-M 7 KNOT

3 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

G-877 JOSEPHINE LINE 10 30-M 7 KNOT

49220492304924049250492604927049280492904930049310493204933049340

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

JOSEPHINE LINE 10 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

SEASPY JOSEPHINE LINE 10 30-M 7 KNOT

491404915049160491704918049190492004921049220492304924049250492604927049280492904930049310493204933049340

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

K-11
G-877 JOSEPHINE LINE 11 30-M 7 KNOT

49220492304924049250492604927049280492904930049310493204933049340

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

JOSEPHINE LINE 11 30-M 7 KNOT

76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

SEASPY JOSEPHINE LINE 11 30-M 7 KNOT

4919049200492104922049230492404925049260492704928049290

1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191

JOSEPHINE LINE 11 30-M 7 KNOT

16 19 22 25 28 31 34 37 40 43 46 49 52 55 58

K-12
APPENDIX L

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

RHODA 25-METER SURVEY INTERVAL GRID
66 RHODA LINE 1 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 RHODA LINE 1 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 15 29 43 57 71 85 99 113 127 141 155 169 183 197 211 225 239 253 267 281

81 RHODA LINE 1 25-M GRID

57 1446 1735 2024 2313 2602 2891 3180 3469 3758 4047 4336 4625

SEASPY RHODA LINE 1 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

L-2
66 RHODA LINE 2 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134 141

G-877 RHODA LINE 2 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221 232

81 RHODA LINE 2 25-M GRID

53 691 829 967 1105 1243 1381 1519 1657 1795 1933 2071 2209

SEASPY RHODA LINE 2 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

L-3
66 RHODA LINE 3 25-M GRID

1 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 RHODA LINE 3 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

81 RHODA LINE 3 25-M GRID

21 776 931 1086 1241 1396 1551 1706 1861 2016 2171 2326 2481

SEASPY RHODA LINE 3 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

L-4
66 RHODA LINE 4 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 4 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210

81 RHODA LINE 4 25-M GRID

37 796 955 1114 1273 1432 1591 1750 1909 2068 2227 2386 2545

SEASPY RHODA LINE 4 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

L-5
66 RHODA LINE 5 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 RHODA LINE 5 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229

81 RHODA LINE 5 25-M GRID

37 921 1105 1289 1473 1657 1841 2025 2209 2393 2577 2761 2945

SEASPY RHODA LINE 5 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

L-6
SEASPY RHODA LINE 6 25-M GRID

492504927049290493104933049350493704939049410494304945049470494904951049530495504957049590

1 22 43 64 85 106 127 148 169 190 211 232 253 274 295 316 337 358 379 400 421

66 RHODA LINE 6 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 6 25-M GRID

49340493604938049400

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

81 RHODA LINE 6 25-M GRID

05 1006 1207 1408 1609 1810 2011 2212 2413 2614 2815 3016 3217

L-7
66 RHODA LINE 7 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115

SEASPY RHODA LINE 7 25-M GRID

493004932049340493604938049400

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

EVENT MARKER

81 RHODA LINE 7 25-M GRID

25 906 1087 1268 1449 1630 1811 1992 2173 2354 2535 2716 2897

G-877 RHODA LINE 7 25-M GRID

49300493204934049360493804940049420494404946049480495004952049540495604958049600

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

L-8
81 RHODA LINE 8 25-M GRID

13 766 919 1072 1225 1378 1531 1684 1837 1990 2143 2296 2449

66 RHODA LINE 8 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 8 25-M GRID

493204935049380

1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154 163 172

SEASPY RHODA LINE 8 25-M GRID

4928049310493404937049400

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

L-9
66 RHODA LINE 9 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 RHODA LINE 9 25-M GRID

46500470004750048000485004900049500500005050051000

1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241 257 273 289 305 321 337

81 RHODA LINE 9 25-M GRID

25 906 1087 1268 1449 1630 1811 1992 2173 2354 2535 2716 2897

SEASPY RHODA LINE 9 25-M GRID

48500487004890049100493004950049700499005010050300505005070050900

1 28 55 82 109 136 163 190 217 244 271 298 325 352 379 406 433 460 487 514 541

EVENT MARKER

L-10
G-877 RHODA LINE 10 25-M GRID

46500468004710047400477004800048300486004890049200495004980050100504005070051000

1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191 201

66 RHODA LINE 10 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

81 RHODA LINE 10 25-M GRID

37 1171 1405 1639 1873 2107 2341 2575 2809 3043 3277 3511 3745

SEASPY RHODA LINE 10 25-M GRID

491004940049700

1 29 57 85 113 141 169 197 225 253 281 309 337 365 393 421 449 477 505 533 561

L-11
66 RHODA LINE 11 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 RHODA LINE 11 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191 201

81 RHODA LINE 11 25-M GRID

05 881 1057 1233 1409 1585 1761 1937 2113 2289 2465 2641 2817

SEASPY RHODA LINE 11 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

L-12
66 RHODA LINE 12 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127

G-877 RHODA LINE 12 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 15 29 43 57 71 85 99 113 127 141 155 169 183 197 211 225 239 253 267 281

81 RHODA LINE 12 25-M GRID

21 1151 1381 1611 1841 2071 2301 2531 2761 2991 3221 3451 3681

SEASPY RHODA LINE 12 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

L-13
66 RHODA LINE 13 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 13 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286 301

81 RHODA LINE 13 25-M GRID

21 901 1081 1261 1441 1621 1801 1981 2161 2341 2521 2701 2881

SEASPY RHODA LINE 13 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

L-14
66 RHODA LINE 14 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 14 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

81 RHODA LINE 14 25-M GRID

61 826 991 1156 1321 1486 1651 1816 1981 2146 2311 2476 2641

SEASPY RHODA LINE 14 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 26 51 76 101 126 151 176 201 226 251 276 301 326 351 376 401 426 451 476 501

L-15
66 RHODA LINE 15 25-M GRID

36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

G-877 RHODA LINE 15 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

81 RHODA LINE 15 25-M GRID

33 916 1099 1282 1465 1648 1831 2014 2197 2380 2563 2746 2929

SEASPY RHODA LINE 15 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 27 53 79 105 131 157 183 209 235 261 287 313 339 365 391 417 443 469 495 521

L-16
66 RHODA LINE 16 25-M GRID

31 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

81 RHODA LINE 16 25-M GRID

57 1071 1285 1499 1713 1927 2141 2355 2569 2783 2997 3211 3425

SEASPY RHODA LINE 16 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 25 49 73 97 121 145 169 193 217 241 265 289 313 337 361 385 409 433 457 481

G-877 RHODA LINE 16 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

L-17
66 RHODA LINE 17 25-M GRID

1 37 43 49 55 61 67 73 79 85 91 97 103 109 115 121

G-877 RHODA LINE 17 25-M GRID

493004931049320493304934049350493604937049380493904940049410494204943049440

1 16 31 46 61 76 91 106 121 136 151 166 181 196 211 226 241 256 271 286

81 RHODA LINE 17 25-M GRID

37 921 1105 1289 1473 1657 1841 2025 2209 2393 2577 2761 2945

SEASPY RHODA LINE 17 25-M GRID

4930049310493204933049340493504936049370493804939049400

1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331 353 375 397 419 441

L-18
APPENDIX M

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

RHODA 30-METER SURVEY INTERVAL 4-KNOT GRID
6 RHODA LINE 1 30-M 4 KNOT

15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57

G-877 RHODA LINE 1 30-M 4 KNOT

492004922049240492604928049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82

SEASPY RHODA LINE 1 30-M 4 KNOT

493004932049340493604938049400

1 112 223 334 445 556 667 778 889 1000 1111 1222 1333 1444 1555 1666 1777

1 RHODA LINE 1 30-M 4 KNOT

93 616 739 862 985 1108 1231 1354 1477 1600 1723 1846 1969

M-2
6 RHODA LINE 2 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70

G-877 RHODA LINE 2 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96

1 RHODA LINE 2 30-M 4 KNOT

96 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

SEASPY RHODA LINE 2 30-M 4 KNOT

4930049310493204933049340493504936049370493804939049400

1 40 79 118 157 196 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

M-3
6 RHODA LINE 3 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

G-877 RHODA LINE 3 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76

1 RHODA LINE 3 30-M 4 KNOT

91 229 267 305 343 381 419 457 495 533 571 609 647 685 723 761

G-881 SEASPY LINE 3 30-M 4 KNOT

4930049310493204933049340493504936049370493804939049400

1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154 163

M-4
6 RHODA LINE 4 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

G-877 RHODA LINE 4 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79

1 RHODA LINE 4 30-M 4 KNOT

66 199 232 265 298 331 364 397 430 463 496 529 562 595 628 661

SEASPY RHODA LINE 4 30-M 4 KNOT

4930049310493204933049340493504936049370493804939049400

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

M-5
6 RHODA LINE 5 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64

G-877 RHODA LINE 5 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145

1 RHODA LINE 5 30-M 4 KNOT

06 247 288 329 370 411 452 493 534 575 616 657 698 739 780 821

SEASPY RHODA LINE 5 30-M 4 KNOT

4930049310493204933049340493504936049370493804939049400

1 12 23 34 45 56 67 78 89 100 111 122 133 144 155 166 177 188 199 210 221

M-6
6 RHODA LINE 6 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64

EVENT MARKER

G-877 RHODA LINE 6 30-M 4 KNOT

470004750048000485004900049500500005050051000

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229

1 RHODA LINE 6 30-M 4 KNOT

249 311 373 435 497 559 621 683 745 807 869 931 993

SEASPY RHODA LINE 6 30-M 4 KNOT

470004750048000485004900049500500005050051000

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

M-7
G-877 RHODA LINE 7 30-M 4 KNOT

48000482004840048600488004900049200494004960049800500005020050400506005080051000

1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241 257 273 289 305 321

6 RHODA LINE 7 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73

1 RHODA LINE 7 30-M 4 KNOT

49 436 523 610 697 784 871 958 1045 1132 1219 1306 1393

SEASPY RHODA LINE 7 30-M 4 KNOT

493004950049700499005010050300505005070050900

1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191

M-8
G-877 RHODA LINE 8 30-M 4 KNOT

48000482004840048600488004900049200494004960049800500005020050400

1 20 39 58 77 96 115 134 153 172 191 210 229 248 267 286 305 324 343 362 381 400

SEASPY RHODA LINE 8 30-M 4 KNOT

48000482004840048600488004900049200494004960049800500005020050400

1 14 27 40 53 66 79 92 105 118 131 144 157 170 183 196 209 222 235 248

6 RHODA LINE 8 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

1 RHODA LINE 8 30-M 4 KNOT

26 271 316 361 406 451 496 541 586 631 676 721 766 811 856 901

M-9
 SEASPY RHODA LINE 9 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300493104932049330493404935049360493704938049390494004941049420

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241

1 RHODA LINE 9 30-M 4 KNOT

96 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

G-877 RHODA LINE 9 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73

6 RHODA LINE 9 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64

M-10
6 RHODA LINE 10 30-M 4 KNOT

19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70

G-877 RHODA LINE 10 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79

EVENT MARKER

1 RHODA LINE 10 30-M 4 KNOT

36 283 330 377 424 471 518 565 612 659 706 753 800 847 894 941

 SEASPY RHODA LINE 10 30-M 4 KNOT

4930049310493204933049340493504936049370493804939049400

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229 241 253

M-11
6 RHODA LINE 11 30-M 4 KNOT

6 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67

G-877 RHODA LINE 11 30-M 4 KNOT

4920049210492204923049240492504926049270492804929049300

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70

1 RHODA LINE 11 30-M 4 KNOT

36 283 330 377 424 471 518 565 612 659 706 753 800 847 894 941 988

G-881 SEASPY LINE 11 4 30-M KNOT

4930049310493204933049340493504936049370493804939049400

1 13 25 37 49 61 73 85 97 109 121 133 145 157 169 181 193 205 217 229

M-12
APPENDIX N

STRIPCHARTS BY LINE FOR EACH INSTRUMENT

 RHODA 30-METER SURVEY INTERVAL 7-KNOT GRID
6 RHODA LINE 1 30-M 7 KNOT

1 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43

G-877 RHODA LINE 1 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55

1 RHODA LINE 1 30-M 7 KNOT

53 566 679 792 905 1018 1131 1244 1357 1470 1583 1696 1809

SEASPY RHODA LINE 1 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 10 19 28 37 46 55 64 73 82 91 100 109 118 127 136 145 154 163 172

N-2
6 RHODA LINE 2 30-M 7 KNOT

1 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43

G-877 RHODA LINE 2 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

1 RHODA LINE 2 30-M 7 KNOT

96 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

SEASPY RHODA LINE 2 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153 161

N-3
6 RHODA LINE 3 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 RHODA LINE 3 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57

1 RHODA LINE 3 30-M 7 KNOT

91 229 267 305 343 381 419 457 495 533 571 609 647 685 723 761

SEASPY RHODA LINE 3 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101

N-4
6 RHODA LINE 4 30-M 7 KNOT

9 11 13 15 17 19 21 23 25 27 29 31 33 35

G-877 RHODA LINE 4 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53

SEASPY RHODA LINE 4 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153

 RHODA LINE 4 30-M 7 KNOT

1 229 267 305 343 381 419 457 495 533 571 609 647 685 723 761

N-5
6 RHODA LINE 5 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 RHODA LINE 5 30-M 7 KNOT

4920049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

1 RHODA LINE 5 30-M 7 KNOT

1 241 281 321 361 401 441 481 521 561 601 641 681 721 761 801

SEASPY RHODA LINE 5 30-M 7 KNOT

4930049400

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127

N-6
6 RHODA LINE 6 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 RHODA LINE 6 30-M 7 KNOT

4840048500486004870048800489004900049100492004930049400495004960049700498004990050000

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55

SEASPY RHODA LINE 6 30-M 7 KNOT

48400485004860048700488004890049000491004920049300494004950049600497004980049900500005010050200503005040050500

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153 161

1 RHODA LINE 6 30-M 7 KNOT

45 306 367 428 489 550 611 672 733 794 855 916 977

N-7
6 RHODA LINE 7 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 RHODA LINE 7 30-M 7 KNOT

49100492004930049400

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55

1 RHODA LINE 7 30-M 7 KNOT

49 436 523 610 697 784 871 958 1045 1132 1219 1306 1393

SEASPY RHODA LINE 7 30-M 7 KNOT

48400485004860048700488004890049000491004920049300494004950049600497004980049900500005010050200503005040050500

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127 134

N-8
66 RHODA LINE 8 30-M KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 RHODA LINE 8 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

1 RHODA LINE 8 30-M 7 KNOT

21 265 309 353 397 441 485 529 573 617 661 705 749 793 837 881

SEASPY RHODA LINE 8 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153 161

N-9
6 RHODA LINE 9 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

G-877 RHODA LINE 9 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49

1 RHODA LINE 9 30-M 7 KNOT

96 235 274 313 352 391 430 469 508 547 586 625 664 703 742 781

SEASPY RHODA LINE 9 30-M 7 KNOT

49250492604927049280492904930049310493204933049340493504936049370493804939049400

1 8 15 22 29 36 43 50 57 64 71 78 85 92 99 106 113 120 127 134 141

N-10
6 RHODA LINE 10 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45

G-877 RHODA LINE 10 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53

1 RHODA LINE 10 30-M 7 KNOT

6 283 330 377 424 471 518 565 612 659 706 753 800 847 894 941

SEASPY RHODA LINE 10 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153

N-11
6 RHODA LINE 11 30-M 7 KNOT

13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

G-877 RHODA LINE 11 30-M 7 KNOT

4920049210492204923049240492504926049270492804929049300

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

1 RHODA LINE 11 30-M 7 KNOT

36 283 330 377 424 471 518 565 612 659 706 753 800 847 894 941 988

SEASPY RHODA LINE 11 30-M 7 KNOT

4930049310493204933049340493504936049370493804939049400

1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153

N-12
The Department of the Interior Mission

As the Nation's principal conservation agency, the Department of the Interior has responsibility 

for most of our nationally owned public lands and natural resources. This includes fostering 

sound use of our land and water resources; protecting our fish, wildlife, and biological diversity; 

preserving the environmental and cultural values of our national parks and historical places; 

and providing for the enjoyment of life through outdoor recreation. The Department assesses 

our energy and mineral resources and works to ensure that their development is in the best 

interests of all our people by encouraging stewardship and citizen participation in their care. 

The Department also has a major responsibility for American Indian reservation communities 

and for people who live in island territories under U.S. administration. 

The Minerals Management Service Mission 

As a bureau of the Department of the Interior, the Minerals Management Service's (MMS) 

primary responsibilities are to manage the mineral resources located on the Nation's Outer 

Continental Shelf (OCS), collect revenue from the Federal OCS and onshore Federal and Indian 

lands, and distribute those revenues. 

Moreover, in working to meet its responsibilities, the Offshore Minerals Management Program 

administers the OCS competitive leasing program and oversees the safe and environmentally 

sound exploration and production of our Nation's offshore natural gas, oil and other mineral 

resources. The MMS Minerals Revenue Management meets its responsibilities by ensuring the 

efficient, timely and accurate collection and disbursement of revenue from mineral leasing and 

production due to Indian tribes and allottees, States and the U.S. Treasury. 

The MMS strives to fulfill its responsibilities through the general guiding principles of: (1) being 

responsive to the public's concerns and interests by maintaining a dialogue with all potentially 

affected parties and (2) carrying out its programs with an emphasis on working to enhance the 

quality of life for all Americans by lending MMS assistance and expertise to economic 

development and environmental protection.