Identification_Information:

    Citation:
        Citation_Information:
            Originator: U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
            Publication_Date:  20090107
            Title: Geophysical data of field activity ACAD87-2,LG1 (A-21-87-LA) 
                   in Chandeleur Islands, Louisiana, Mississippi, Alabama, Gulf 
                   of Mexico,North America, North Atlantic from 06/14/1987 to 
                   06/26/1987                                                   
            Publication_Information:
                Publisher:   U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
            Online_Linkage:  http://walrus.wr.usgs.gov/infobank/gos/a-21-87-la.fmeta.xml
            Online_Linkage:  http://walrus.wr.usgs.gov/infobank/a/a2187la/html/a-21-87-la.meta.html

    Description:
        Abstract: United States Geological Survey, St. Petersburg, 
                  Florida,United States Geological Survey, Woods Hole, 
                  Massachusetts,Louisiana Geological Survey. Chief Scientists: 
                  Jack Kindinger, John Suter. Geophysical data (Geopulse, 
                  3dot5khz, navigation) of field activity ACAD87-2,LG1 
                  (A-21-87-LA) in Chandeleur Islands, Louisiana, Mississippi, 
                  Alabama, Gulf of Mexico,North America, North Atlantic from 
                  06/14/1987 to 06/26/1987,                                     
                  http://walrus.wr.usgs.gov/infobank/a/a2187la/html/a-21-87-la.meta.html.

        Purpose:  These data and information are intended for science 
                  researchers, students from elementary through 
                  college, policy makers, and general public.

        Supplemental_Information: 

                                  Equipment Used -

                                  Geopulse                      ORE bomer, Benthos 10 element hydrophone, EPC 3200 recorder, ORE 5210 receiver, ORE 5420 A power supply

                                  3dot5khz                      ORE 3.5 kHz subbottom profiler with ORE 140 transceiver

                                  navigation                    Northstar 6000 Loran, Texas Instruments Silent 700, EPC delay box


                                  Similar information is available for thousands
                                  of other USGS/CMG-related Activities.

                                  If known, available are Activity-specific
                                  navigation, gravity, magnetics, bathymetry,
                                  seismic, and sampling data; track maps; and
                                  equipment information; as well as summary
                                  overviews, crew lists, and information
                                  about analog materials.  

                                  If available, access to physical samples is
                                  described in the "WR CMG Sample Distribution
                                  Policy" at:
                                  http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html

                                  Primary access to the USGS/CMG Information
                                  Bank's digital data, analog data, and
                                  metadata is provided through...
                                  http://walrus.wr.usgs.gov/infobank/

                                  This page accomodates a variety of search
                                  approaches (e.g., by platform, by region,
                                  by scientist, by equipment type, etc.).

    Time_Period_of_Content:
        Time_Period_Information:
            Range_of_Dates/Times:
                Beginning_Date:      19870614
                Ending_Date:         19870626

        Currentness_Reference:    ground condition

    Status:
        Progress:                            Complete
        Maintenance_and_Update_Frequency:    As needed

    Spatial_Domain:
        Bounding_Coordinates:
            West_Bounding_Coordinate:      -89.30000
            East_Bounding_Coordinate:      -88.00000
            North_Bounding_Coordinate:      30.25000
            South_Bounding_Coordinate:      29.00000

    Keywords:
        Theme:
            Theme_Keyword_Thesaurus:      ISO 19115 Topic Category
            Theme_Keyword:                geoscientificinformation
            Theme_Keyword:                oceans
        Theme:
            Theme_Keyword_Thesaurus:      USGS CMG InfoBank
            Theme_Keyword:                Marine Geology

        Place:
            Place_Keyword_Thesaurus:      USGS CMG InfoBank
            Place_Keyword:                Chandeleur Islands, Louisiana, Mississippi, Alabama, Gulf of Mexico,
            Place_Keyword:                Gulf Coast
            Place_Keyword:                Gulf of Mexico
            Place_Keyword:                LA
            Place_Keyword:                Louisiana
            Place_Keyword:                Mississippi Delta
            Place_Keyword:                USA
            Place_Keyword:                rica, North Atlantic


    Access_Constraints:    Physical materials are under controlled on-site access.

                           If available, access to physical samples is described 
                           in the "WR CMG Sample Distribution Policy" at:
                           http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html

    Use_Constraints:       Please recognize the U.S. Geological Survey (USGS) as 
                           the source of this information.

                           Physical materials are under controlled on-site access.

                           Some USGS information accessed through this means 
                           may be preliminary in nature and presented without 
                           the approval of the Director of the USGS.  This 
                           information is provided with the understanding 
                           that it is not guaranteed to be correct or complete 
                           and conclusions drawn from such information are 
                           the responsibility of the user.

                           This information is not intended for navigational 
                           purposes.

                           Any use of trade, firm, or product names is for 
                           descriptive purposes only and does not imply 
                           endorsement by the U.S. Government.

    Point_of_Contact:
        Contact_Information:
            Contact_Organization_Primary:
                Contact_Organization:           U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
                Contact_Person:                 Clint Steele

            Contact_Position:                   Data Acquisition, Processing, and Storage (DAPS) Group Leader

            Contact_Address:
                Address_Type:                   mailing and physical address
                Address:                        USGS, MailStop 999, 345 Middlefield Road
                City:                           Menlo Park
                State_or_Province:              CA
                Postal_Code:                    94025-3561
                Country:                        USA

            Contact_Voice_Telephone:            (650) 329-5055
            Contact_Facsimile_Telephone:        (650) 329-5190

            Contact_Electronic_Mail_Address:    csteele@usgs.gov


    Browse_Graphic:
        Browse_Graphic_File_Name:           http://walrus.wr.usgs.gov/infobank/a/a2187la/html/a-21-87-la.nav.gif
        Browse_Graphic_File_Description:    Trackline map of A-21-87-LA
        Browse_Graphic_File_Type:           GIF

    Data_Set_Credit:
                           Jack Kindinger (Chief Scientist, USGS St. Petersburg);
                           John Suter (Chief Scientist, June 14-19, LGS);
                           Ken Parolski (USGS Woods Hole);
                           Wayne Simoneaux (LUMCON);
                           Shea Penland (June 20-22, LGS);
                           Randolph McBride (June 20-22, LGS);
                           Steve Anderson (June 23-26, LGS);
                           Ron Boyd (June 14-19, Dalhousie Univ)

    Native_Data_Set_Environment: Digital, ASCII
    Cross_Reference:
        Citation_Information:
            Originator:              U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
            Publication_Date:        Unknown
            Title:                   USGS/CMG Information Bank
            Publication_Information:
                Publisher:   U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
            Other_Citation_Details:  Updated daily
            Online_Linkage:          http://walrus.wr.usgs.gov/infobank/
 


Data_Quality_Information:

    Attribute_Accuracy:
        Attribute_Accuracy_Report:    Identified as best available version.

    Logical_Consistency_Report:    Unspecified

    Completeness_Report:           Start and end date/times of data
                                    >Navigation Data (a-21-87-la.050 [SINS])
                                      >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
                                      >198701010101000    198701050101000
                                      >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST

    Positional_Accuracy:
        Horizontal_Positional_Accuracy:
            Horizontal_Positional_Accuracy_Report:    Unspecified

        Vertical_Positional_Accuracy:
            Vertical_Positional_Accuracy_Report:      Unspecified

    Lineage:

        Process_Step:
            Process_Description:    Navigation Data
                                      Unknown
            Process_Date:           20060306

            Process_Contact:
                Contact_Information:
                    Contact_Organization_Primary:
                        Contact_Organization:           U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
                        Contact_Person:                 Clint Steele

                    Contact_Position:                   Data Acquisition, Processing, and Storage (DAPS) Group Leader

                    Contact_Address:
                        Address_Type:                   mailing and physical address
                        Address:                        USGS, MailStop 999, 345 Middlefield Road
                        City:                           Menlo Park
                        State_or_Province:              CA
                        Postal_Code:                    94025-3561
                        Country:                        USA

                    Contact_Voice_Telephone:            (650) 329-5055
                    Contact_Facsimile_Telephone:        (650) 329-5190

                    Contact_Electronic_Mail_Address:    csteele@usgs.gov


Spatial_Data_Organization_Information:

    Indirect_Spatial_Reference:     Chandeleur Islands, Louisiana, Mississippi, Alabama, Gulf of Mexico,
    Direct_Spatial_Reference_Method:      Point

    Point_and_Vector_Object_Information:
        SDTS_Terms_Description:
            SDTS_Point_and_Vector_Object_Type:    Point


Spatial_Reference_Information:

    Horizontal_Coordinate_System_Definition:
        Geographic:
            Latitude_Resolution:            0.00001
            Longitude_Resolution:           0.00001
            Geographic_Coordinate_Units:    Decimal degrees

    Vertical_Coordinate_System_Definition:
        Depth_System_Definition:
            Depth_Datum_Name:         Local surface
            Depth_Resolution:         0.1
            Depth_Distance_Units:     meters
            Depth_Encoding_Method:    Attribute values


Entity_and_Attribute_Information:

    Overview_Description:
        Entity_and_Attribute_Overview:            Navigation with Time Stamp
        Entity_and_Attribute_Detail_Citation:     Integrated navigation (SINS) data
                                                    >Mnemonic:       (Year, Day, Hour, Min, Sec, Tenths, Latitude, Longitude)
                                                    >FORTRAN format: (i4.4, i3.3, 3i2.2, i1.1, t16, f9.5, t26, f10.5)
                                                    >C format:       (%4.4i%3.3i3%2.2i%1.1i %9.5f %10.5f\\n)
                                                    >Naming:         .050


Distribution_Information:

    Distributor:
        Contact_Information:
            Contact_Organization_Primary:
                Contact_Organization:           U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
                Contact_Person:                 Clint Steele

            Contact_Position:                   Data Acquisition, Processing, and Storage (DAPS) Group Leader

            Contact_Address:
                Address_Type:                   mailing and physical address
                Address:                        USGS, MailStop 999, 345 Middlefield Road
                City:                           Menlo Park
                State_or_Province:              CA
                Postal_Code:                    94025-3561
                Country:                        USA

            Contact_Voice_Telephone:            (650) 329-5055
            Contact_Facsimile_Telephone:        (650) 329-5190

            Contact_Electronic_Mail_Address:    csteele@usgs.gov

    Resource_Description:    Downloadable Data ACAD87-2,LG1 (A-21-87-LA) data set

    Distribution_Liability:  Please recognize the U.S. Geological Survey (USGS) as 
                             the source of this information.

                             Physical materials are under controlled on-site access.

                             Some USGS information accessed through this means 
                             may be preliminary in nature and presented without 
                             the approval of the Director of the USGS.  This 
                             information is provided with the understanding 
                             that it is not guaranteed to be correct or complete 
                             and conclusions drawn from such information are 
                             the responsibility of the user.

                             This information is not intended for navigational 
                             purposes.

                             Any use of trade, firm, or product names is for 
                             descriptive purposes only and does not imply 
                             endorsement by the U.S. Government.

    Standard_Order_Process:
        Digital_Form:
            Digital_Transfer_Information:
                Format_Name:                     ASCII
                File_Decompression_Technique:    No compression applied
                Transfer_Size:                        0.1

            Digital_Transfer_Option:
                Online_Option:
                    Computer_Contact_Information:
                        Network_Address:
                            Network_Resource_Name:    http://walrus.wr.usgs.gov/infobank/a/a2187la/html/a-21-87-la.nav.html

        Fees:    None


Metadata_Reference_Information:

    Metadata_Date:       20090107

    Metadata_Contact:
        Contact_Information:
            Contact_Organization_Primary:
                Contact_Organization:           U.S. Geological Survey (USGS), Coastal and Marine Geology (CMG)
                Contact_Person:                 Clint Steele

            Contact_Position:                   Data Acquisition, Processing, and Storage (DAPS) Group Leader

            Contact_Address:
                Address_Type:                   mailing and physical address
                Address:                        USGS, MailStop 999, 345 Middlefield Road
                City:                           Menlo Park
                State_or_Province:              CA
                Postal_Code:                    94025-3561
                Country:                        USA

            Contact_Voice_Telephone:            (650) 329-5055
            Contact_Facsimile_Telephone:        (650) 329-5190

            Contact_Electronic_Mail_Address:    csteele@usgs.gov

    Metadata_Standard_Name:       FGDC Content Standards for Digital Geospatial Metadata

    Metadata_Standard_Version:    Version 1.0 (19940608)

    Metadata_Time_Convention:     universal time
    Metadata_Access_Constraints:      none
    Metadata_Use_Constraints:      none