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U.S. Geological Survey Data Series 773
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- Data_Quality_Information 
- Spatial_Data_Organization_Information 
- Spatial_Reference_Information 
- Entity_and_Attribute_Information 
- Distribution_Information 
- Metadata_Reference_Information 
- Identification_Information:   
-    - Citation:     
  -      - Citation_Information:       
    -        - Originator: Arnell S. Forde
      - Originator: Shawn V. Dadisman
      - Originator: Dana S. Wiese
      - Originator: Daniel C. Phelps
      - Publication_Date: 2013
      - Title:         
      - Archive of Digital Boomer Subbottom Data Collected During USGS         Cruises 99FGS01 and 99FGS02 Offshore Southeast and Southwest Florida,         July and November, 1999 
      - Geospatial_Data_Presentation_Form: Tabular, vector, and         raster digital data
      - Series_Information:         
      -          - Series_Name: U.S. Geological Survey Data Series
        - Issue_Identification: 773 
      - Publication_Information:         
      -          - Publication_Place: St. Petersburg, FL
        - Publisher: U.S. Geological Survey 
      - Online_Linkage: < http://pubs.usgs.gov/ds/773/ > 
  - Description:     
  -      - Abstract:       
    - During July 19 - 26 and November 17 - 18 of 1999, the U.S. Geological       Survey (USGS), in cooperation with the Florida Geological Survey (FGS),       conducted geophysical surveys of the Atlantic Ocean offshore of Florida's       southeast coast from Orchid to Jupiter, FL and the Gulf of Mexico offshore       of Venice, FL. This report serves as an archive of unprocessed digital       boomer subbottom data, trackline maps, navigation files, GIS information,       and formal FGDC metadata. Filtered and gained digital images of the       subbottom profiles are also provided. The archived trace data are in       standard Society of Exploration Geophysicists (SEG) SEG Y revision 0       format (Barry and others, 1975) and may be downloaded and processed with       commercial or public domain software such as Seismic Unix (SU). Example SU       processing scripts and USGS software for viewing the SEG Y files (Zihlman,       1992) are also provided. These data are also available for viewing using       GeoMapApp (< http://www.geomapapp.org/ >) and       Virtual Ocean (< http://www.virtualocean.org/ >)       multi-platform open source software. In addition to this DVD, the SEG Y       files can also be downloaded from the USGS Coastal and Marine Geoscience       Data System (< http://cmgds.marine.usgs.gov/ >).       
    - Purpose:       
    - The data archived here were collected under a cooperative agreement       between the Florida Geological Survey and the USGS. 
    - Supplemental_Information:       
    - The USGS Saint Petersburg Coastal and Marine Science Center (SPCMSC) -       St. Petersburg, FL, assigns a unique identifier to each cruise or field       activity. For example, 99FGS01 and 99FGS02 tells us the data were       collected in 1999 for the Florida Geological Survey (FGS) cooperative       agreement and the data were collected during the first and second field       activities for that project in that calendar year. Refer to < http://walrus.wr.usgs.gov/infobank/programs/html/definition/activity.html >       for a detailed description of the method used to assign the cruise ID.       The boomer subbottom processing system consists of an acoustic       energy source that is made up of capacitors charged to a high voltage and       discharged through a transducer in the water. The transducer is towed on a       sled floating on the water surface and when discharged emits a short       acoustic pulse, or shot, that propagates through the water column and       shallow stratigraphy below. The acoustic energy is reflected at density       boundaries (such as the seafloor or sediment layers beneath the seafloor),       detected by the receiver (hydrophone streamer), and recorded by a PC-based       seismic acquisition system. This process is repeated at timed intervals       (for example, 0.5 s) and recorded for specific intervals of time (for       example, 100 ms). In this way, a 2-D vertical image of the shallow       geologic structure beneath the ship track is produced. An Applied       Acoustic Engineering CSP 300 provided 300 Joules of energy per shot.       Reflected energy was received by a Innovative Transducers, Inc. (ITI) ST-5       10-channel streamer and recorded by Triton Elics International, Inc. (TEI)       Delph Seismic v. 1.36 acquisition software. The streamer contains 10       hydrophones evenly spaced every 0.60 m. The streamer was positioned       directly behind the research vessel (parallel to the boomer sled), with a       lateral separation of approximately 14 m (99FGS01) and 24 m (99FGS02).       Refer to  figure 2        included with this archive for a diagram of the acquisition geometries.       The sample frequencies of the data were 240-2400 Hz and 8000 Hz, and       record length was 100 ms. The shot spacing was highly variable; however,       based on survey speeds of 3 knots and a shot rate of every 1 s, shot       spacing was about 1.54 m. The unprocessed seismic data are stored       in SEG Y rev. 0, integer, Motorola format, which is a standard digital       format that can be read and manipulated by most seismic processing       software packages (Barry and others, 1975). The SEG Y formatted trace       files have a .TRA extension. The printable profiles provided here are GIF       images that were filtered and gained using Seismic Unix software. 
  - Time_Period_of_Content:     
  -      - Time_Period_Information:       
    -        - Range_of_Dates/Times:         
      -          - Beginning_Date: 19990719, 19991117
        - Ending_Date: 19990726, 19991118 
    - Currentness_Reference: Data collection     interval 
  - Status:     
  -      - Progress: Complete
    - Maintenance_and_Update_Frequency: None     planned 
  - Spatial_Domain:     
  -      - Bounding_Coordinates:       
    -        - West_Bounding_Coordinate: -82.809167
      - East_Bounding_Coordinate: -79.949167
      - North_Bounding_Coordinate: 27.099167
      - South_Bounding_Coordinate:     26.968056 
  - Keywords:     
  -      - Theme:       
    -        - Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      - Theme_Keyword: geoscientificinformation
      - Theme_Keyword: oceans 
    - Theme:       
    -        - Theme_Keyword_Thesaurus: General
      - Theme_Keyword: Geology
      - Theme_Keyword: Coastal information
      - Theme_Keyword: Marine
      - Theme_Keyword: Subbottom profile
      - Theme_Keyword: Seismic reflection
      - Theme_Keyword: Boomer
      - Theme_Keyword: Society of Exploration Geophysicists
      - Theme_Keyword: SEG Y
      - Theme_Keyword: Florida Geological Survey
      - Theme_Keyword: FGS
      - Theme_Keyword: 99FGS01
      - Theme_Keyword: 99FGS02 
    - Place:       
    -        - Place_Keyword_Thesaurus: Geographic Names Information         System (GNIS) Content 
      - Place_Keyword: United States of America
      - Place_Keyword: Florida
      - Place_Keyword: Atlantic Ocean
      - Place_Keyword: Gulf of Mexico
      - Place_Keyword: Orchid
      - Place_Keyword: Fort Pierce
      - Place_Keyword: Stuart
      - Place_Keyword: Sebastian Inlet
      - Place_Keyword: Jupiter
      - Place_Keyword: Venice 
  - Access_Constraints: None. These data are held in the public     domain.
  - Use_Constraints:     
  - The U.S. Geological Survey and Florida Geological Survey (FGS) request     to be acknowledged as originators of the data in future products or     derivative research. 
  - Point_of_Contact:     
  -      - Contact_Information:       
    -        - Contact_Person_Primary:         
      -          - Contact_Person: Arnell S. Forde
        - Contact_Organization: U.S. Geological         Survey 
      - Contact_Position: Geologist
      - Contact_Address:         
      -          - Address_Type: mailing and physical
        - Address: 600 4th Street South
        - City: Saint Petersburg
        - State_or_Province: FL
        - Postal_Code: 33701
        - Country: USA 
      - Contact_Voice_Telephone: (727) 803-8747 ext. 3111
      - Contact_Electronic_Mail_Address:         aforde@usgs.gov 
  - Browse_Graphic:     
  -      - Browse_Graphic_File_Name: < http://pubs.usgs.gov/ds/773/maps/99fgs01_02_location.jpg >
    - Browse_Graphic_File_Description:       
    - Location map of digital boomer subbottom data collected during USGS       Field Activities 99FGS01 and 99FGS02. This map was created at a scale of       1:442,800. Refer to the Lineage section below for the trackline map       creation process. 
    - Browse_Graphic_File_Type: JPEG 
  - Browse_Graphic:     
  -      - Browse_Graphic_File_Name: < http://pubs.usgs.gov/ds/773/maps/99fgs01_location.jpg >
    - Browse_Graphic_File_Description:       
    - Location map of digital boomer subbottom data collected during USGS       Field Activity 99FGS01. This map was created at a scale of 1:654,650.       Refer to the Lineage section below for the trackline map creation process.       
    - Browse_Graphic_File_Type: JPEG 
  - Browse_Graphic:     
  -      - Browse_Graphic_File_Name: < http://pubs.usgs.gov/ds/773/maps/99fgs02_location.jpg >
    - Browse_Graphic_File_Description:       
    - Location map of digital boomer subbottom data collected during USGS       Field Activity 99FGS02. This map was created at a scale of 1:239,600.       Refer to the Lineage section below for the trackline map creation process.       
    - Browse_Graphic_File_Type: JPEG 
  - Browse_Graphic:     
  -      - Browse_Graphic_File_Name: < http://pubs.usgs.gov/ds/773/profiles/printable/ >
    - Browse_Graphic_File_Description:       
    - Directory containing printable images of all subbottom profiles. 
    - Browse_Graphic_File_Type: GIF 
  - Data_Set_Credit:     
  - Funding and (or) support for this study was provided by the USGS Coastal     and Marine Geology Program and FGS. This document was improved by the     reviews of Ellen Raabe (USGS)     and Theresa Burress (Cherokee Nation Technology Solutions) of the USGS - St.     Petersburg, FL. Disc Image Credit: Schmaltz, Jeff, MODIS Rapid Response Team     at the NASA Goddard Space Flight Center, 2004,     UnitedStates.A2004106.1855.500m.jpg. Also available on-line at < http://eoimages.gsfc.nasa.gov/ve/6886/UnitedStates.A2004106.1855.500m.jpg >     
  - Cross_Reference:     
  -      - Citation_Information:       
    -        - Originator: Cohen, J.K., and Stockwell, J.W., Jr.,         CWP/SU
      - Publication_Date: 2010
      - Title:         
      - Seismic Unix Release 41: A free package for seismic research and         processing, Center for Wave Phenomena, Colorado School of Mines 
      - Online_Linkage: < http://www.cwp.mines.edu/cwpcodes/index.html > 
  - Cross_Reference:     
  -      - Citation_Information:       
    -        - Originator: Zihlman, F.N., USGS
      - Publication_Date: 1992
      - Title:         
      - DUMPSEGY V1.0: A program to examine the contents of SEG Y disk-image         seismic data 
      - Series_Information:         
      -          - Series_Name: U.S. Geological Survey Open-File Report
        - Issue_Identification: 92-590 
      - Other_Citation_Details: 28 pages
      - Online_Linkage: < http://pubs.er.usgs.gov/usgspubs/ofr/ofr92590 > 
  - Cross_Reference:     
  -      - Citation_Information:       
    -        - Originator: Barry, K.M., Cavers, D.A., and Kneale, C.W.
      - Publication_Date: 1975
      - Title: Recommended standards for digital tape formats
      - Series_Information:         
      -          - Series_Name: Geophysics
        - Issue_Identification: v. 40, no. 2 
      - Other_Citation_Details: pages 344-352
      - Online_Linkage: < http://www.seg.org/publications/tech-stand/ > 
- Data_Quality_Information:   
-    - Attribute_Accuracy:     
  -      - Attribute_Accuracy_Report:       
    - The validity or accuracy of marine subbottom profiles is highly       qualitative and depends on equipment and operating condition variables.       Visual inspection of the images rendered from the data did not show any       major anomalies. 
  - Logical_Consistency_Report:     
  - This dataset is from one field activity with consistent instrument     calibrations. 
  - Completeness_Report:     
  - These data are collected along tracklines (2-D) and are therefore     inherently incomplete. Geologic details between lines must be inferred. 
  - Positional_Accuracy:     
  -      - Horizontal_Positional_Accuracy:       
    -        - Horizontal_Positional_Accuracy_Report:         
      - As the subbottom data were acquired, the position of the vessel was         continuously determined by a Trimble Centurion GPS receiver, which is         accurate within 3 - 5 m. Positions were recorded and written to the         trace headers in latitude and longitude coordinates about every 1 s. The         approximately 25-m offset between the Boomer shot and GPS was not         accounted for during acquisition nor have the ASCII navigation files and         trackline map been corrected to reflect the offset. NOTE: The navigation         data written to the "Source coordinates" of the SEG Y trace headers         (bytes 73 - 80) are only accurate within 1 s of arc, or about 31 m.         Additional navigation data were recorded more accurately (between 3 - 5         m) to the "Unassigned" trace headers (bytes 181 - 240) by the Delph         Seismic acquisition software. These navigation files were not used to         produce the trackline maps. Please see the SEG Y Format page for a         detailed description of the SEG Y data format including byte number         assignments and header value descriptions. The Delph Seismic navigation         data can be accessed from the Navigation page under the Raw Shotpoint         Navigation section or via the  delphnav  folder. 
    - Vertical_Positional_Accuracy:       
    -        - Vertical_Positional_Accuracy_Report:         
      - Boomer data are relative to sea level. However, varying recorded         static shifts of the data have been known to occur. Therefore, these         data are not to be used for bathymetry. 
  - Lineage:     
  -      - Process_Step:       
    -        - Process_Description:         
      - Boomer processing: Using Seismic Unix software, the data were first         converted to SU format (in doing so all the undefined header fields were         zeroed) and then the SEG Y data were processed to produce GIF images of         the subbottom profiles included in this report. A representative boomer         processing sequence consisted of (1) running a bandpass filter of         300-500-2500-3000 Hz, (2) applying automatic gain control, (3)         displaying PostScript, and (4) converting of PostScript image to a GIF         image. 
      - Source_Used_Citation_Abbreviation: SEG Y
      - Process_Date: 2012
      - Source_Produced_Citation_Abbreviation: printable/SEG         Y.gif
      - Source_Produced_Citation_Abbreviation: geospatial/SEG         Y.jpg
      - Process_Contact:         
      -          - Contact_Information:           
        -            - Contact_Person_Primary:             
          -              - Contact_Person: Arnell S. Forde
            - Contact_Organization: U.S. Geological             Survey 
          - Contact_Position: Geologist
          - Contact_Address:             
          -              - Address_Type: mailing and physical address
            - Address: 600 4th Street South
            - City: St. Petersburg
            - State_or_Province: FL
            - Postal_Code: 33701 
          - Contact_Voice_Telephone: (727) 803-8747, ext. 3111
          - Contact_Electronic_Mail_Address:             aforde@usgs.gov 
    - Process_Step:       
    -        - Process_Description:         
      - Navigation processing: Shotpoint navigation, start of line, and         500-shot-interval location files were extracted using Seismic Unix         software and output as ASCII text files; they were then processed with         PROJ.4.7.0 (< http://trac.osgeo.org/proj/ >)         to generate UTM coordinates from latitude and longitude coordinates.         Text files for each seismic line were concatenated into comma-delimited         text files (for use with ESRI software), containing unique shotpoint         positions (99fgs01.txt and 99fgs02.txt), the 500-shot-interval locations         (s99fgs01.txt and s99fgs02) and start of line locations (99fgs01_s and         99fgs02_s); all files can be viewed within the nav folder of this         report. 
      - Source_Used_Citation_Abbreviation: b**.txt, m**.txt,         ir*.txt, and sl*.txt; grecon*.txt
      - Process_Date: 2012
      - Source_Produced_Citation_Abbreviation: 99fgs01.txt;         99fgs02.txt
      - Source_Produced_Citation_Abbreviation: s99fgs01.txt;         s99fgs02.txt
      - Source_Produced_Citation_Abbreviation: 99fgs01_s.txt;         99fgs02_s.txt
      - Process_Contact:         
      -          - Contact_Information:           
        -            - Contact_Person_Primary:             
          -              - Contact_Person: Arnell S. Forde
            - Contact_Organization: U.S. Geological             Survey 
          - Contact_Position: Geologist
          - Contact_Address:             
          -              - Address_Type: mailing and physical address
            - Address: 600 4th Street South
            - City: St. Petersburg
            - State_or_Province: FL
            - Postal_Code: 33701 
          - Contact_Voice_Telephone: (727) 803-8747, ext. 3111
          - Contact_Electronic_Mail_Address:             aforde@usgs.gov 
    - Process_Step:       
    -        - Process_Description:         
      - All concatenated, comma-delimited text files were imported into         ArcGIS and saved as either a point or polyline file in the ESRI         shapefile format. Trackline map creation: The trackline maps were         created using ESRI ArcGIS 10 software. The processed navigation files,         99fgs01.txt and 99fgs01.txt, were imported into ArcMap 10 and processed         using the Points to Lines ArcScript to create a line shapefile of the         cruise tracklines (99fgs01_trkln and 99fgs02_trkln). The         500-shot-interval files s99fgs01.txt and s99fgs02.txt and the start of         line files 99fgs01_s.txt and 99fgs02_s.txt were imported into ArcMap as         point shapefiles 99fgs01_shots, 99fgs02_shots, 99fgs01_sol, and         99fgs02_sol. Please refer to the shapefile metadata included in the         ArcGIS map document located under the Software section of this archive         for additional details. The location maps were exported to Adobe         Illustrator v. 14 for further editing then later converted into JPEG         format by Adobe Dreamweaver v. 10 Build 4117. The map is unprojected         (geographic coordinates, WGS84). The USGS is the originator of all         layers used. Please see the ArcGIS readme file for detailed information         about the GIS files used in this report. 
      - Source_Used_Citation_Abbreviation: 99fgs01.txt;         99fgs02.txt
      - Source_Used_Citation_Abbreviation: s99fgs01.txt;         s99fgs02.txt
      - Source_Used_Citation_Abbreviation: 99fgs01_s.txt;         99fgs02_s.txt
      - Process_Date: 2012
      - Source_Produced_Citation_Abbreviation: 99fgs01_shots.shp;         99fgs02_shots.shp
      - Source_Produced_Citation_Abbreviation: 99fgs01_trkln.shp;         99fgs02_trkln.shp
      - Source_Produced_Citation_Abbreviation: 99fgs01_sol.shp;         99fgs02_sol.shp 
    - Process_Step:       
    -        - Process_Description:         
      - Data Series preparation: In addition to the process steps described         above, the following steps were taken to produce this Data Series         report: the handwritten (< http://pubs.usgs.gov/ds/773/logbooks/handwritten/ >)         cruise logs were scanned and saved as a PDF file, digital (< http://pubs.usgs.gov/ds/773/logbooks/digital/ >)         logs were created by A. Forde using the cruise logs and personal         accounts of the crew members and saved as PDF files, and an HTML-based         format was used to present the various parts of this archive. 
      - Process_Date: 2012
      - Process_Contact:         
      -          - Contact_Information:           
        -            - Contact_Person_Primary:             
          -              - Contact_Person: Arnell S. Forde
            - Contact_Organization: U.S. Geological             Survey 
          - Contact_Position: Geologist
          - Contact_Address:             
          -              - Address_Type: mailing and physical address
            - Address: 600 4th Street South
            - City: St. Petersburg
            - State_or_Province: FL
            - Postal_Code: 33701 
          - Contact_Voice_Telephone: (727) 803-8747, ext. 3111
          - Contact_Electronic_Mail_Address:             aforde@usgs.gov 
- Spatial_Data_Organization_Information:   
-    - Indirect_Spatial_Reference:     
  - Horizontal X and Y locations (latitude and longitude and Zone 17 UTM     coordinates) for each shot are provided as ASCII text files, along with the     date and time (UTC) the shot was recorded. 
- Spatial_Reference_Information:   
-    - Horizontal_Coordinate_System_Definition:     
  -      - Geographic:       
    -        - Latitude_Resolution: 0.000001
      - Longitude_Resolution: 0.000001
      - Geographic_Coordinate_Units: Decimal       Degrees 
    - Geodetic_Model:       
    -        - Horizontal_Datum_Name: WGS84
      - Ellipsoid_Name: WGS_1984
      - Semi-major_Axis: 6378137.000000
      - Denominator_of_Flattening_Ratio:       298.25722210100002 
- Entity_and_Attribute_Information:   
-    - Detailed_Description:     
  -      - Entity_Type:       
    -        - Entity_Type_Label:         
      - 99fgs01.txt, 99fgs02.txt, s99fgs01.txt, s99fgs02.txt, 99fgs01_s.txt,         and 99fgs02_s.txt 
      - Entity_Type_Definition: Shotpoint navigation files
      - Entity_Type_Definition_Source:         
      - Society of Exploration Geophysicists (SEG) Y headers (< http://www.seg.org/publications/tech-stand >). 
    - Attribute:       
    -        - Attribute_Label: FID*
      - Attribute_Definition: Internal feature number.
      - Attribute_Definition_Source: ESRI
      - Attribute_Domain_Values:         
      -          - Unrepresentable_Domain:           
        - Sequential unique whole numbers that are automatically generated. 
    - Attribute:       
    -        - Attribute_Label: Shape*
      - Attribute_Definition: Feature geometry.
      - Attribute_Definition_Source: ESRI
      - Attribute_Domain_Values:         
      -          - Unrepresentable_Domain: Coordinates defining the           features. 
    - Attribute:       
    -        - Attribute_Label: UTMX
      - Attribute_Definition: UTM-X coordinate (Zone 17)
      - Attribute_Definition_Source: Universal Transverse Mercator         Geographic Coordinate System
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: 485419
          - Range_Domain_Maximum: 516280
          - Attribute_Units_of_Measure:         meters 
    - Attribute:       
    -        - Attribute_Label: UTMY
      - Attribute_Definition: UTM-Y coordinate (Zone 17)
      - Attribute_Definition_Source: Universal Transverse Mercator         Geographic Coordinate System
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: 3228278
          - Range_Domain_Maximum: 3280044
          - Attribute_Units_of_Measure:         meters 
    - Attribute:       
    -        - Attribute_Label: Line
      - Attribute_Definition: Trackline number
      - Attribute_Definition_Source: U.S. Geological Survey
      - Attribute_Domain_Values:         
      -          - Unrepresentable_Domain:           
        - Individual line name for all lines collected during 99FGS01 and           99FGS02. 
    - Attribute:       
    -        - Attribute_Label: Shot
      - Attribute_Definition: Shotpoint number
      - Attribute_Definition_Source: U.S. Geological Survey
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: 1
          - Range_Domain_Maximum:       20000 
    - Attribute:       
    -        - Attribute_Label: Lon
      - Attribute_Definition: Longitude (decimal degrees)
      - Attribute_Definition_Source: World Geodetic System 1984         Geographic Coordinate System
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: -81.15062
          - Range_Domain_Maximum: -80.832379
          - Attribute_Units_of_Measure: decimal           degrees 
    - Attribute:       
    -        - Attribute_Label: Lat
      - Attribute_Definition: Latitude (decimal degrees)
      - Attribute_Definition_Source: World Geodetic System 1984         Geographic Coordinate System
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: 29.183103
          - Range_Domain_Maximum: 29.650282
          - Attribute_Units_of_Measure: decimal           degrees 
    - Attribute:       
    -        - Attribute_Label: YEAR
      - Attribute_Definition: Year
      - Attribute_Definition_Source: U.S. Geological Survey
      - Attribute_Domain_Values:         
      -          - Range_Domain:           
        -            - Range_Domain_Minimum: 1999
          - Range_Domain_Maximum:       1999 
    - Attribute:       
    -        - Attribute_Label: DOY:HR:MIN:SEC
      - Attribute_Definition: Day of year:hour:minute:second
      - Attribute_Definition_Source: U.S. Geological Survey
      - Attribute_Domain_Values:         
      -          - Unrepresentable_Domain: Day of year, hour, minute and           second of data acquisition 
  - Overview_Description:     
  -      - Entity_and_Attribute_Overview:       
    - Binary data file: Trace data are available as binary files in SEG Y       format. These files have a .TRA extension and range in size from 2.22 to       28.9 MB (99FGS01) and 15.9 - 49.7 (99FGS02) MB. These data can be found by       going to < http://pubs.usgs.gov/ds/773/segy/ >       
    - Entity_and_Attribute_Overview:       
    - Graphic image file: Printable versions of the subbottom profiles are       available as GIF images, links to these images can be found on the       Profiles page or by going to < http://pubs.usgs.gov/ds/773/profiles/printable/ >.       
    - Entity_and_Attribute_Overview:       
    - Navigation file: Navigation files are available as ASCII text files.       Provided are raw (unprocessed) shotpoint navigation files, processed       shotpoint navigation (99fgs01.txt and 99fgs02.txt), processed       500-shot-interval location (s99fgs01.txt and s99fgs02.txt), and a start of       line file (99fgs01_s.txt and 99fgs02_s.txt). Fields/Attributes [FID,       Shape] marked above with an asterisk (*) were created by ESRI ArcGIS and       are used exclusively by the shapefiles created from the aforementioned       .txt files; these fields are not included in the original navigation       files. All remaining attributes listed in the above section that do not       have an accompanying asterisk are found in 99fgs01.txt, 99fgs02.txt,       s99fgs01.txt, s99fgs02.txt, 99fgs01_s.txt, and 99fgs02_s.txt. Raw and       processed navigation data files can be found by going to < http://pubs.usgs.gov/ds/773/nav/ >.       
    - Entity_and_Attribute_Overview:       
    - GIS file: The GIS project used to create the trackline maps is       provided as a .zip file composed of ESRI map documents, shapefiles, and       metadata. 
    - Entity_and_Attribute_Detail_Citation: Information is derived       from SEG Y headers. 
- Distribution_Information:   
-    - Distributor:     
  -      - Contact_Information:       
    -        - Contact_Person_Primary:         
      -          - Contact_Person: Arnell Forde
        - Contact_Organization: U.S. Geological         Survey 
      - Contact_Position: Geologist
      - Contact_Address:         
      -          - Address_Type: mailing and physical
        - Address: 600 4th Street South
        - City: St. Petersburg
        - State_or_Province: FL
        - Postal_Code: 33701
        - Country: USA 
      - Contact_Voice_Telephone: (727) 803-8747, ext. 3111
      - Contact_Electronic_Mail_Address:         aforde@usgs.gov
      - Contact_Instructions:         
      - All of this report is available online. The SEG Y files are         downloadable from the Coastal and Marine Geoscience Data System (< http://cmgds.marine.usgs.gov/ >). 
  - Resource_Description: U.S. Geological Survey Data Series     773
  - Distribution_Liability:     
  - This DVD publication was prepared by an agency of the United States     Government. Although these data have been processed successfully on a     computer system at the U.S. Geological Survey, no warranty expressed or     implied is made regarding the display or utility of the data on any other     system, nor shall the act of distribution imply any such warranty. The U.S.     Geological Survey shall not be held liable for improper or incorrect use of     the data described and (or) contained herein. Reference herein to any     specific commercial product, process, or service by trade name, trademark,     manufacturer, or otherwise does not constitute or imply its endorsement,     recommendation, or favoring by the United States Government or any agency     thereof. 
  - Standard_Order_Process:     
  -      - Digital_Form:       
    -        - Digital_Transfer_Information:         
      -          - Format_Name: SEG Y rev. 0
        - Format_Information_Content:           
        - The SEG Y standard format (Barry and others, 1975) consists of the           following: a 3,600-byte reel identification header, with the first           3,200 bytes consisting of an ASCII header block followed by a 400-byte           binary header block, both of which include information specific to           line and reel number; a trace data block that follows the reel           identification header, with the first 240 bytes of each trace block           consisting of the binary trace identification header; and seismic data           samples that follow the trace identification header. 
        - File_Decompression_Technique: None
        - Transfer_Size: 463 MB (99FGS01) and 165 MB           (99FGS02) 
      - Digital_Transfer_Option:         
      -          - Offline_Option:           
        -            - Offline_Media: DVD
          - Recording_Format: ISO 9660
          - Compatibility_Information: Unix, Linux, DOS,             Macintosh 
    - Digital_Form:       
    -        - Digital_Transfer_Information:         
      -          - Format_Name: map document, shapefile, metadata
        - Format_Information_Content:           
        - The GIS project used to create the trackline maps is composed of           map documents, shapefiles, and metadata. Map documents were created           with ESRI ArcGIS 10 software. The shapefiles provided may also be           viewed using other versions of ESRI desktop software including their           free software ArcGIS Explorer (< http://www.esri.com/software/arcgis/explorer/index.html >).           
        - File_Decompression_Technique: unzip
        - Transfer_Size: 27 MB 
      - Digital_Transfer_Option:         
      -          - Online_Option:           
        -            - Computer_Contact_Information:             
          -              - Network_Address:               
            -                - Network_Resource_Name: < http://pubs.usgs.gov/ds/773/software/arc/arc.zip > 
    - Fees: None, if obtained online; otherwise, prices vary.
    - Ordering_Instructions:       
    - Publications are available from USGS Information Services, Box 25286,       Federal Center, Denver, CO 80225-0046 (telephone: 1-888-ASK-USGS, e-mail:       infoservices@usgs.gov). 
  - Technical_Prerequisites:     
  - Use of SEG Y data requires specialized seismic processing software, such     as public domain software Seismic Unix (< http://www.cwp.mines.edu/cwpcodes/index.html >). 
- Metadata_Reference_Information:   
-    - Metadata_Date: 20120626
  - Metadata_Contact:     
  -      - Contact_Information:       
    -        - Contact_Person_Primary:         
      -          - Contact_Person: Arnell Forde
        - Contact_Organization: U.S. Geological         Survey 
      - Contact_Position: Geologist
      - Contact_Address:         
      -          - Address_Type: mailing and physical
        - Address: 600 4th Street South
        - City: St. Petersburg
        - State_or_Province: FL
        - Postal_Code: 33701
        - Country: USA 
      - Contact_Voice_Telephone: (727) 803-8747, ext. 3111
      - Contact_Electronic_Mail_Address:         aforde@usgs.gov 
  - Metadata_Standard_Name: Content Standard for Digital Geospatial     Metadata
  - Metadata_Standard_Version: FGDC-STD-001-1998 
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U.S. Department of the Interior | U.S. Geological SurveyURL: http://pubs.usgs.gov/ds/773/html/metadata.htmlPage Contact Information: GS Pubs Web ContactPage Last Modified: Thursday, July 18, 2013, 05:00:40 PM