# SEAMARC_ENUTM.TIF - Enhanced 25 m SeaMARC 1A sidescan sonar mosaic from the Mississippi Fan (UTM, Zone 16, WGS84)

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## Metadata:

- Identification_Information
- 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: David Twichell
      Originator: Valerie Paskevich
      Publication_Date: 2005
      Title:
        SEAMARC_ENUTM.TIF - Enhanced 25 m SeaMARC 1A sidescan sonar mosaic from the Mississippi Fan (UTM, Zone 16, WGS84)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: remote-sensing image
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 2005-1071
      Publication_Information:
        Publication_Place: Woods Hole Science Center, Woods Hole, MA
        Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
      Online_Linkage:
        <http://pubs.usgs.gov/of/2005/1071/data/sidescan/imagery/enhanced/utm/seamarc_enutm.zip>
      Larger_Work_Citation:
        Citation_Information:
          Originator: Twichell D.C.
          Originator: Cross V.A.
          Originator: Paskevich, V.F.
          Originator: Hutchinson, D.R.
          Originator: Winters, W.J.
          Originator: Hart, P.E.
          Publication_Date: 2005
          Title:
            GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey
          Edition: 1.0
          Series_Information:
            Series_Name: Open-File Report
            Issue_Identification: 2005-1071
          Publication_Information:
            Publication_Place: Woods Hole Science Center, Woods Hole, MA
            Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
          Other_Citation_Details: 1 DVD-ROM
          Online_Linkage: <http://pubs.usgs.gov/of/2005/1071>
  Description:
    Abstract:
      Since 1982, the U.S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep parts of the Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several different projects that addressed surficial and shallow subsurface geologic processes. Some of these data sets have already been published, but the growing interest in the occurrence and distribution of gas hydrates in the Gulf of Mexico warrants integrating these existing data and associated interpretations into a GIS to provide regional background information for ongoing and future gas hydrate research.
    Purpose:
      This GIS data layer is a 25 m version of the completed SeaMARC 1A sidescan sonar image mosaic, which has been enhanced and projected to UTM Zone 16 using the WGS 84 datum. The SeaMARC 1A imagery was collected in 1990 from the eastern part of the Mississippi Fan and covers an area of 3,047 km2. An interpretation of these data is presented by Twichell et al. (1992) and Twichell et al. (1995).
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 19900325
        Ending_Date: 19900408
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -86.602758
      East_Bounding_Coordinate: -84.986524
      North_Bounding_Coordinate: 26.900431
      South_Bounding_Coordinate: 26.100683
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: General
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Coastal and Marine Geology Program
      Theme_Keyword: CMGP
      Theme_Keyword: Woods Hole Science Center
      Theme_Keyword: WHSC
      Theme_Keyword: Gulf of Mexico database
      Theme_Keyword: U.S. Exclusive Economic Zone
      Theme_Keyword: EEZ
      Theme_Keyword: sidescan sonar
      Theme_Keyword: sidescan sonar mosaic
      Theme_Keyword: composite mosaic
      Theme_Keyword: TIFF
      Theme_Keyword: TIF
      Theme_Keyword: GEOTIFF
      Theme_Keyword: GeoTIFF
      Theme_Keyword: SeaMARC 1A
      Theme_Keyword: seamarc
      Theme_Keyword: Information Archives Field Activity 99002
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: oceans and estuaries
      Theme_Keyword: imageryBaseMapsEarthCover
      Theme_Keyword: geoscientificInformation
    Place:
      Place_Keyword_Thesaurus: General
      Place_Keyword: Gulf of Mexico
      Place_Keyword: Mississippi Fan
      Place_Keyword: North America
      Place_Keyword: United States
  Access_Constraints: None
  Use_Constraints:
    Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: David Twichell
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Oceanographer
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Road
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
        Country: USA
      Contact_Voice_Telephone: (508) 548-8700 x2266
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: dtwichell@usgs.gov
  Browse_Graphic:
    Browse_Graphic_File_Name:
      <http://pubs.usgs.gov/of/2005/1071/data/sidescan/imagery/enhanced/utm/seamarc_enutm-thumb.gif>
    Browse_Graphic_File_Description:
      Thumbnail image of the SeaMARC1A sidescan sonar mosaic from the Mississippi Fan.
    Browse_Graphic_File_Type: GIF
  Browse_Graphic:
    Browse_Graphic_File_Name:
      <http://pubs.usgs.gov/of/2005/1071/data/sidescan/imagery/enhanced/utm/seamarc_enutm.gif>
    Browse_Graphic_File_Description:
      Overview image of the SeaMARC1A sidescan sonar mosaic from the Mississippi Fan.
    Browse_Graphic_File_Type: GIF
  Native_Data_Set_Environment:
    Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
  Cross_Reference:
    Citation_Information:
      Originator: V. Paskevich
      Originator: D. Twichell
      Originator: W. Schwab
      Publication_Date: 2001
      Title:
        SeaMARC 1A sidescan sonar mosaic, cores and depositional interpretation of the Mississippi Fan: ArcView GIS data release
      Edition: 1.0
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 00-352
      Publication_Information:
        Publication_Place: Woods Hole Science Center, Woods Hole, MA
        Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
      Other_Citation_Details: 1 CD-ROM
      Online_Linkage: <http://pubs.usgs.gov/of/of00-352/>
  Cross_Reference:
    Citation_Information:
      Originator: V. Paskevich
      Publication_Date: 1992
      Title:
        Digital mapping of side-scan sonar data with the Woods Hole Image Processing System software
      Edition: 1.0
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 92-536
      Publication_Information:
        Publication_Place: Woods Hole Science Center, Woods Hole, MA
        Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
  Cross_Reference:
    Citation_Information:
      Originator: Twichell, D.C.
      Originator: Schwab, W.C.
      Originator: Nelson, C.H.
      Originator: Kenyon, N.H.
      Originator: Lee, H.J.
      Publication_Date: 1992
      Title: Depositional processes on the distal Mississippi Fan
      Series_Information:
        Series_Name: Geology
        Issue_Identification: v. 20, p. 689-692
      Publication_Information:
        Publication_Place: Boulder, CO
        Publisher: Geological Society of America
  Cross_Reference:
    Citation_Information:
      Originator: Twichell, D.C.
      Originator: Schwab, W.C.
      Originator: Kenyon, N.H.
      Publication_Date: 1995
      Title:
        Geometry of sandy deposits at the distal edge of the Mississippi Fan, Gulf of Mexico
      Series_Information:
        Series_Name:
          Atlas of deep water environments architectural style in turbidite systems
        Issue_Identification: p. 282-286
      Publication_Information:
        Publication_Place: London
        Publisher: Chapman and Hall

Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: There are no attributes associated with the image.
  Logical_Consistency_Report:
    All these data were collected with a SeaMARC 1A sidescan sonar system operated by Williamson and Associates, Seattle, WA. All the data were acquired at a 5 km total swath width.
  Completeness_Report: All imagery that was acquired has been included in this mosaic.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        The ship was navigated using satellite navigation, and the location of the sidescan vehicle was computed using the ship location, ship heading, length of tow cable, and depth of the sidescan vehicle.
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Series_Information:
          Publication_Information:
      Type_of_Source_Media: magnetic tape
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 19900325
            Ending_Date: 19900408
        Source_Currentness_Reference: ground condition
      Source_Citation_Abbreviation: QMIPS data tapes
      Source_Contribution:
        SeaMARC 1A sidescan sonar data were logged using a QMIPS data acquisition system and recorded to 8 mm digital tape for post-cruise processing.
    Process_Step:
      Process_Description:
        The individual SeaMARC 1A sidescan swaths were transferred from tape to disk. The files were subsequently converted from the QMIPS format to a WHIPS format for processing. The WHIPS format and processing procedures are described in Paskevich (1992).
      Source_Used_Citation_Abbreviation: QMIPS data tapes
      Source_Produced_Citation_Abbreviation: WHIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The individual sidescan files were processed using the Woods Hole Image Processing Software (WHIPS, Paskevich, 1992). The individual strips of sidescan data were processes to apply geometric (i.e. slant-to-ground range corrections) and radiometric corrections (i.e. beam correction shading and striped noise removal).
      Source_Used_Citation_Abbreviation: WHIPS data files
      Source_Produced_Citation_Abbreviation: WHIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The SeaMARC 1A files that comprised the eastern half of the survey were transferred to the Woods Hole Science Center's MicroVAX-II computer system. This portion of the survey consisted of mostly straight line segments and were to be digitally mosaicked on this system. (The western portion was done a few months later with developing software). The MicroVAX-II computer system contained the Mini-Image Processing System (MIPS) software that was needed to map and digitally mosaic the data. To begin processing, the WHIPS data files were all converted to MIPS format.
      Source_Used_Citation_Abbreviation: WHIPS data files
      Source_Produced_Citation_Abbreviation: MIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The MIPS data files were spatially mapped using program GEOM. The files were projected and mapped with a Mercator projection and a Clarke 1866 spheroid.
      Source_Used_Citation_Abbreviation: WHIPS data files
      Source_Produced_Citation_Abbreviation: MIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        As the individual swaths were mapped, they were geo-referenced to the base image, stenciled and mosaicked to the base. (The base was one swath that had been mapped and was selected as the master which everything would be registered with). Control points were selected interactively to match features on the adjacent lines and a rubber sheeting procedure was applied to the mapped swaths to better align the images. Once registered, a stencil line was interactively drawn around the area of the line to be added. This stencil area was critical as it not only eliminated the unwanted area that was overlapping the adjacent lines, but defined the area to be kept. Finally, the registered, transformed and stenciled image was added to the base. These steps were repeated for each swath until the eastern mosaic was completed.
      Source_Used_Citation_Abbreviation: MIPS data files
      Source_Produced_Citation_Abbreviation: MIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The SeaMARC1A files that comprised the western half of the survey were mapped using the WHIPS software. This area of the survey consisted of several survey line segments. This software could handle curved line segments./ The files were projected and mapped with a Mercator projection and a Clarke 1866 spheroid to match the eastern portion of the mosaic.
      Source_Used_Citation_Abbreviation: MIPS data files
      Source_Produced_Citation_Abbreviation: MIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The WHIPS mapped swaths were transferred to the Center's MicroVAX-II computer system for stenciling and mosaicking with the MIPS software. Once transferred to the MicroVAX, the files were converted to the MIS format for processing.
      Source_Used_Citation_Abbreviation: WHIPS data files
      Source_Produced_Citation_Abbreviation: MIPS data files
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The converted WHIPS mapped swaths were stenciled and mosaicked with the MIPS software. This procedure is similar to the one outlined for the eastern portion of the survey. Control points were selected interactively to match features on the adjacent lines and a rubber sheeting procedure was applied to the mapped swaths to better align the images. Once registered, a stencil line was interactively drawn around the area of the line to be added. This stencil area was critical as it not only eliminated the unwanted area that was overlapping the adjacent lines but defined the area to be kept. Finally the registered, transformed and stenciled image was added to the base. These steps were repeated for each swath until the western mosaic was completed.
      Source_Used_Citation_Abbreviation: MIPS data files
      Source_Produced_Citation_Abbreviation: west.pic
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The two completed mosaics, east.pic and west.pic, were combined to create one overall view of the study area.
      Source_Used_Citation_Abbreviation: east.pic
      Source_Used_Citation_Abbreviation: west.pic
      Source_Produced_Citation_Abbreviation: compos.pic
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The MIPS created mosaic, compos.pic, was transferred to a UNIX computer system. The image was imported into a PCI Remote Sensing database file and georeferenced as Mercator.
      Source_Used_Citation_Abbreviation: compos.pic
      Source_Produced_Citation_Abbreviation: msfan.pix
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov
    Process_Step:
      Process_Description:
        The mosaic, compos.pix, was reprojected from Mercator to UTM using the PCI Remote Sensing software.
      Source_Used_Citation_Abbreviation: msfan.pix
      Process_Date: 19990218
      Source_Produced_Citation_Abbreviation: utme00.pix
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Valerie Paskevich
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Information Specialist/GIS Coordinator
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2281
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: vpaskevich@usgs.gov
    Process_Step:
      Process_Description:
        Using the PCI Remote Sensing software, a linear contrast stretch was applied to the SeaMARC 1A sidescan sonar mosaic stored in channel 1. This was done to improve the image's viewing by expanding the data's dynamic range.
      Source_Used_Citation_Abbreviation: utm1.pix channel 1
      Process_Date: 19990319
      Source_Produced_Citation_Abbreviation: utm1.pix channel 3
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Valerie Paskevich
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Information Specialist/GIS Coordinator
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2281
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: vpaskevich@usgs.gov
    Process_Step:
      Process_Description:
        The completed, enhanced, 25 m SeaMARC 1A sidescan sonar mosaic was exported from the PCI 'pix' database as a GeoTIFF image with an associated "world" file.
      Source_Used_Citation_Abbreviation: utme00.pix channel 3
      Process_Date: 20000302
      Source_Produced_Citation_Abbreviation: raw/seamarc.tif
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Valerie Paskevich
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Information Specialist/GIS Coordinator
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2281
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: vpaskevich@usgs.gov
    Process_Step:
      Process_Description:
        The SeaMARC 1A GeoTIFF image was reprojected from a UTM projection using the NAD 27 datum to a UTM projection (zone 16) using the WGS 84 datum. The reprojection was done using Geographic Transformer (v. 5.1) produced by Blue Marble. The affine transform mode was used, the pixel size was 25 m, and the central latitude was 26.25N.
      Source_Used_Citation_Abbreviation: enhanced/seamarc.tif
      Process_Date: 20040916
      Source_Produced_Citation_Abbreviation: seamarc_enutm.tif
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: David Twichell
            Contact_Organization: U.S. Geological Survey
          Contact_Position: Oceanographer
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543-1598
            Country: USA
          Contact_Voice_Telephone: (508) 548-8700 x2266
          Contact_Facsimile_Telephone: (508) 457-2310
          Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information:
    Raster_Object_Type: Pixel
    Row_Count: 3484
    Column_Count: 6411
    Vertical_Count: 1

Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 16
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -87.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Coordinate_Representation:
          Abscissa_Resolution: 25.000000
          Ordinate_Resolution: 25.000000
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: Band_1
    Attribute:
      Attribute_Label: ObjectID
      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: Value
    Attribute:
      Attribute_Label: Red
    Attribute:
      Attribute_Label: Green
    Attribute:
      Attribute_Label: Blue
  Overview_Description:
    Entity_and_Attribute_Overview: There are no attributes associated with a GeoTIFF image.

Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Valerie Paskevich
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Information Specialist/GIS Coordinator
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Road
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
        Country: USA
      Contact_Voice_Telephone: (508) 548-8700 x2281
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: vpaskevich@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

    Any use of trade, product, or firm 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: TIFF
        Format_Specification: GeoTIFF
        Format_Information_Content: A GeoTIFF image and associated world file.
        File_Decompression_Technique: zip
        Transfer_Size: 0.000
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name:
                <http://pubs.usgs.gov/of/2005/1071/data/sidescan/imagery/enhanced/utm/seamarc_enutm.zip>
          Access_Instructions: Data may be retrieved via any WWW browser.
        Offline_Option:
          Offline_Media: DVD-ROM
          Recording_Capacity:
            Recording_Density: 4.75
            Recording_Density_Units: Gbytes
          Recording_Format: UDF
    Fees: None
  Technical_Prerequisites:
    This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GEOTIFF image.

Metadata_Reference_Information:
  Metadata_Date: 20050222
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
        Contact_Person: Valerie Paskevich
      Contact_Position: Information Specialist / GIS Coordinator
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 384 Woods Hole Road
        City: Woods Hole
        State_or_Province: MA
        Postal_Code: 02543-1598
        Country: USA
      Contact_Voice_Telephone: (508) 548-8700 x2281
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: vpaskevich@usgs.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998
  Metadata_Time_Convention: local time
  Metadata_Access_Constraints: None
  Metadata_Use_Constraints: None
  Metadata_Extensions:
    Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
    Profile_Name: ESRI Metadata Profile

Generated by `mp` version 2.8.6 on Tue Dec 13 09:41:45 2005