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Identification_Information:

  Citation:
    Citation_Information:
      Originator: U.S. Geological Survey (USGS) , Coastal and Marine Geology Program (CMGP) 
      Publication_Date: 20131029
      Title:
        Multichannel Sesmic and Sidescan Sonar data of field activity
        99002 (G-1-99-GM) in Northern Gulf of Mexico - Louisiana
        continental slope from 04/09/1999 to 04/21/1999
      Publication_Information:
        Publisher: U.S. Geological Survey (USGS) , Coastal and Marine Geology (CMG) 
        Publication_Place: Menlo Park, CA
      Online_Linkage: http://walrus.wr.usgs.gov/infobank/gos/g-1-99-gm.fmeta.xml
      Online_Linkage: http://walrus.wr.usgs.gov/infobank/g/g199gm/html/g-1-99-gm.meta.html
      Online_Linkage: http://quashnet.er.usgs.gov/data/1999/99002/index.html

  Description:
    Abstract:
      United States Geological Survey, Woods Hole, Massachusetts.
      Chief Scientists: Alan Cooper, Dave Twichell. Multichannel
      Sesmic and Sidescan Sonar data (24channel, sidescansonar,
      SIS1000, Huntec, 2channelwatergun) of field activity 99002
      (G-1-99-GM) in Northern Gulf of Mexico - Louisiana
      continental slope from 04/09/1999 to 04/21/1999,
      http://walrus.wr.usgs.gov/infobank/g/g199gm/html/g-1-99-gm.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 -

      24channel                     high-resolution mcs

      sidescansonar

      SIS1000                       CHIRP seismic

      Huntec                        Huntec seismic

      2channelwatergun

      Publications -

      Cooper, Alan, Twichell, David, and Hart, Patrick, 1999, A seismic-reflection

      investigation of gas hydrates and sea-floor features of the upper continental

      slope of the Garden Banks and Green Canyon regions, northern Gulf of Mexico:

      Report for cruise G-1-99-GM (99002), US Geological Survey Open-File Report

      990570, URL:

       http://geopubs.wr.usgs.gov/open-file/of99-570/


      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: 19990409
        Ending_Date: 19990421

    Currentness_Reference: ground condition

  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed

  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -94.81837
      East_Bounding_Coordinate: -91.42861
      North_Bounding_Coordinate: 29.34556
      South_Bounding_Coordinate: 27.36766

  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: geoscientificinformation
      Theme_Keyword: oceans
    Theme:
      Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD)
      Theme_Keyword: EARTH SCIENCE > OCEANS
    Theme:
      Theme_Keyword_Thesaurus: USGS CMG InfoBank
      Theme_Keyword: Marine Geology
      Theme_Keyword: Marine Geophysics
      Theme_Keyword: Bathymetry
      Theme_Keyword: Water Depth
      Theme_Keyword: Seafloor Topography
      Theme_Keyword: Marine Seismic

    Place:
      Place_Keyword_Thesaurus: USGS CMG InfoBank
      Place_Keyword: Central Gulf of Mexico EEZ
      Place_Keyword: Gulf Coast
      Place_Keyword: Gulf of Mexico
      Place_Keyword: Northern Gulf of Mexico - Louisiana continental slope
      Place_Keyword: USA


  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: InfoBank 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: infobank@octopus.wr.usgs.gov 


  Data_Set_Credit:
    Alan Cooper (Chief Scientist, USGS Western Region);
    Dave Twichell (Chief Scientist, USGS-WHOI);
    Pat Hart (MCS Watchstander, USGS Western Region);
    Jeff Brody (MCS Watchstander, USGS Western Region);
    Chris Anton  (Side  Scan Watchstander, USGS-WHOI);
    Barry Irwin (Side  Scan Watchstander, USGS-WHOI);
    Dave Foster (Chirp Seismic Processor, USGS-WHOI );
    Bill Danforth (Side  Scan Processor, USGS-WHOI);
    Dave Nichols (Electronics Technician & Side  Scan Watchstander, USGS-WHOI);
    Larry Kooker (Electronics Technician, USGS Western Region);
    Tom O'Brien (Electronics Technician, USGS-WHOI);
    Hal Williams (Marine Technician, USGS Western Region);
    Walt Olson (Marine Technician, USGS Western Region);
    Graham Standen (Huntec Engineer, Geoforce Corp.)

  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) 
        Publication_Place: Menlo Park, CA
      Online_Linkage: http://walrus.wr.usgs.gov/infobank/
      Online_Linkage: http://quashnet.er.usgs.gov/data/1999/99002/index.html
      Other_Citation_Details:
        Cooper, Alan, Twichell, David, and Hart, Patrick, 1999, A seismic-reflection
        investigation of gas hydrates and sea-floor features of the upper continental
        slope of the Garden Banks and Green Canyon regions, northern Gulf of Mexico:
        Report for cruise G-1-99-GM (99002), US Geological Survey Open-File Report
        990570, URL:
         http://geopubs.wr.usgs.gov/open-file/of99-570/



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 (g-1-99-gm.063 [GPS])
    >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    >199904091345404    199904091345404
    >199904091354304    199904091355304
    >199904091414503    199904091433304
    >199904091524403    199904091526203
    >199904091553403    199904091554403
    >199904091605203    199904091632003
    >199904091640104    199904091642303
    >199904091648003    199904091659103
    >199904091705403    199904091717000
    >199904091729000    199904092137403
    >199904092153405    199904092331104
    >199904092338104    199904110000002
    >199904110008401    199904142140303
    >199904142342204    199904150253404
    >199904150307304    199904180000100
    >199904180028400    199904180057202
    >199904180103200    199904201519303
    >199904201531304    199904201531504
    >199904201554000    199904211550402
    >199904211616102    199904211617302
    >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    >Bathymetry Data (g-1-99-gm.301_063)
    >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    >199904091817000    199904092137403
    >199904092153405    199904092331104
    >199904092338104    199904142140303
    >199904142342204    199904150253404
    >199904150307304    199904180017500
    >199904180038500    199904180057202
    >199904180103200    199904201519303
    >199904201617201    199904211550402
    >199904211616202    199904211617302
    >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    >Seismic Shots Data (g-1-99-gm.420_063)
    >YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    >199904101751040    199904102236080
    >199904102254470    199904102359140
    >199904110009540    199904110013550
    >199904110021440    199904110202220
    >199904110228150    199904110312450
    >199904110320170    199904110330200
    >199904110400050    199904110425590
    >199904110438360    199904110438360
    >199904110445230    199904110542240
    >199904110550260    199904111130210
    >199904111218030    199904111248250
    >199904111255120    199904111316260
    >199904111322090    199904111350130
    >199904111400140    199904111523010
    >199904111534540    199904111619190
    >199904111630040    199904111825310
    >199904111831210    199904112049570
    >199904112103010    199904112338070
    >199904112346220    199904120013070
    >199904120021430    199904120050040
    >199904120058490    199904120125040
    >199904120137470    199904120449550
    >199904120458330    199904120830190
    >199904120902470    199904121343170
    >199904121355210    199904121732510
    >199904121740460    199904122144590
    >199904122203010    199904122309320
    >199904122332280    199904130228000
    >199904130308360    199904130443240
    >199904130449260    199904130702470
    >199904130713030    199904131113140
    >199904131123530    199904131521560
    >199904131534290    199904131904430
    >199904131921360    199904132328280
    >199904140021050    199904140035150
    >199904140327420    199904140443590
    >199904140450010    199904140456020
    >199904140555290    199904140752590
    >199904140810280    199904141045550
    >199904141052020    199904141202210
    >199904141215370    199904141225400
    >199904141231410    199904141237560
    >199904141252000    199904141508500
    >199904141520480    199904141538530
    >199904162112220    199904162344280
    >199904170003270    199904170019320
    >199904170241060    199904170500440
    >199904170508290    199904170818520
    >199904170827320    199904171456370
    >199904171510390    199904171622330
    >199904171628350    199904172033550
    >199904172050290    199904172332210
    >199904180116110    199904180146320
    >199904180158230    199904180421470
    >199904180456060    199904180456060
    >199904180503010    199904180848330
    >199904180854350    199904180856360
    >199904180903370    199904181008560
    >199904181353590    199904181358410
    >199904181408550    199904182136100
    >199904182143230    199904182256390
    >199904182307030    199904190159190
    >199904190205200    199904190742240
    >199904190753110    199904190908290
    >199904190914310    199904191449310
    >199904191457060    199904191551220
    >199904191557230    199904192024460
    >199904192037180    199904200034270
    >199904200056250    199904200118440
    >199904200124460    199904200543390
    >199904200611360    199904200951180
    >199904200959210    199904201124270
    >199904201136410    199904201518430
    >199904201558210    199904201600220
    >199904201606230    199904201930370
    >199904201936330    199904202142160
    >199904202147480    199904202222000
    >199904202232080    199904202330550
    >199904202342440    199904210029070
    >199904210121060    199904210203330
    >199904210213440    199904210231580
    >199904210238010    199904210549380
    >199904210559350    199904210944060
    >199904210950050    199904211321020
    >199904211326310    199904211425020
    >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
        >Clint 6/10/99
        >Adjusted bad navigation from:
        >   19991080028400 to 19991080104100
        >by
        >   adding 0.00880 degrees to latitude
        >   subtracting 0.03950 from longitude
        >Bad navigation apparently caused by system crash
        >at start of JD 108, then improper position
        >when system restarted at 19991080028400
        >
      Process_Date: 19990610

      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: InfoBank 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: infobank@octopus.wr.usgs.gov 

    Process_Step:
      Process_Description:
        Bathymetry Data
        >02/07/2002 ghatcher g-1-99-gm.301_063
        >/infobank/programs/edit/automerge/automerge
        >merged nav and bathy
        >
        >Input was...
        >06/03/1999 clint /tiger/g/g199gm/bath/g-1-99-gm.301
        >nozerobathy
        >Raw depth (bathymetry) data
        >Bathy values of 0.0 removed.
        >
        >Input was...
        >Clint 6/10/99
        >Adjusted bad navigation from:
        >   19991080028400 to 19991080104100
        >by
        >   adding 0.00880 degrees to latitude
        >   subtracting 0.03950 from longitude
        >Bad navigation apparently caused by system crash
        >at start of JD 108, then improper position
        >when system restarted at 19991080028400
        >
        >time, lat, long, time(sec) to nearest nav fix, data values
      Process_Date: 20020207

      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: InfoBank 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: infobank@octopus.wr.usgs.gov 


Spatial_Data_Organization_Information:

  Indirect_Spatial_Reference: Northern Gulf of Mexico - Louisiana continental slope
  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

    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137
      Denominator_of_Flattening_Ratio: 298.257

  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: Bathymetry with Time Stamp 

  Overview_Description:
    Entity_and_Attribute_Overview: Navigation with Time Stamp 

  Overview_Description:
    Entity_and_Attribute_Overview: Seismic Shots with Time Stamp 


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: InfoBank 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: infobank@octopus.wr.usgs.gov 

  Resource_Description: Downloadable Data 99002 (G-1-99-GM) 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: 3.6

      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://walrus.wr.usgs.gov/infobank/g/g199gm/html/g-1-99-gm.nav.html

    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ASCII
        File_Decompression_Technique: No compression applied
        Transfer_Size: 5.4

      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://walrus.wr.usgs.gov/infobank/g/g199gm/html/g-1-99-gm.bath.html

    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ASCII
        File_Decompression_Technique: No compression applied
        Transfer_Size: 0.3

      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://walrus.wr.usgs.gov/infobank/g/g199gm/html/g-1-99-gm.seis.html

    Fees: None


Metadata_Reference_Information:

  Metadata_Date: 20131029

  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: InfoBank 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: infobank@octopus.wr.usgs.gov 

  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata 

  Metadata_Standard_Version: FGDC-STD-001-1998 

  Metadata_Time_Convention: universal time
  Metadata_Access_Constraints: none
  Metadata_Use_Constraints: none



      
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Page Last Modified: Tue Oct 29 10:40:52 PDT 2013  (chd)