Identification_Information:
  Citation:
    Citation_Information:
      Originator: National Oceanic and Atmospheric Administration
      Publication_Date: 2007
      Title: B370_H11250_DTM2M.GUTM: GeoZui File of the 2-m Multibeam Bathymetric Data Collected During NOAA Survey H11250 in Eastern Long Island Sound (UTM, Zone 18)
      Edition: 1.0
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 2007-1012
      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/2007/1012/data/bathy/grids/utm/geozui/b370_h11250_dtm2m.zip
      Online_Linkage: http://pubs.usgs.gov/of/2007/1012/data/bathy/grids/utm/geozui/b370_h11250_dtm2m.gutm
      Online_Linkage: http://pubs.usgs.gov/of/2007/1012/html/catalog.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: L.J. Poppe
          Originator: M.L. DiGiacomo-Cohen
          Originator: E.F. Doran
          Originator: S.M. Smith
          Originator: H.F. Stewart
          Originator: N.A. Forfinski
          Publication_Date: 2007
          Title: Geologic Interpretation and Multibeam Bathymetry of the Sea Floor in the Vicinity of the Race, Eastern Long Island Sound
          Edition: 1.0
          Series_Information:
            Series_Name: Open-File Report
            Issue_Identification: 2007-1012
          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/2007/1012/
  Description:
    Abstract:
      Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the seafloor (one of the primary controls of benthic habitat diversity); improve our understanding of the processes that control the distribution and transport of bottom sediments, and the distribution of benthic habitats and associated infaunal community structures; and provide a detailed framework for future research, monitoring, and management activities.
      The bathymetric survey interpreted herein (National Oceanic and Atmospheric Administration (NOAA) survey H11250) covers roughly 94 km2 of seafloor in easternmost Long Island Sound and westernmost Block Island Sound.  This bathymetry has been examined in relation to seismic reflection data collected concurrently, as well as archived seismic profiles acquired as part of a long-standing geologic mapping partnership between the State of Connecticut and the U.S. Geological Survey (USGS).  The objective of this work was to use these acoustic data sets to interpret geomorphological attributes of the seafloor, and to use these interpretations to better understand the Quaternary geologic history and modern sedimentary processes.
    Purpose: To release the GeoZui file containing the 2-m bathymetry generated from NOAA survey H11250 in Long Island Sound.  A program (GeoZui3D) capable of reading this file can be downloaded free of charge via the World Wides Web (WWW) from Ocean Mapping, Marine GIS of the University of New Hampshire at:  http://www.seascallop.com/GeoZui.html
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2003
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -72.154000
      East_Bounding_Coordinate: -71.992004
      North_Bounding_Coordinate: 41.270997
      South_Bounding_Coordinate: 41.188000
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: General
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Woods Hole Science Center
      Theme_Keyword: multibeam bathymetry
      Theme_Keyword: bathymetry
      Theme_Keyword: Coastal and Marine Geology Program
      Theme_Keyword: CMGP
      Theme_Keyword: WHSC
      Theme_Keyword: Simrad EM1002
      Theme_Keyword: NOAA survey H11250
      Theme_Keyword: H11250
      Theme_Keyword: National Oceanic and Atmospheric Administration
      Theme_Keyword: NOAA
      Theme_Keyword: NOAA Project Identifier OPR-B370-TJ
      Theme_Keyword: Long Island Sound Resource Center
      Theme_Keyword: LISRC
      Theme_Keyword: Connecticut Department of Environmental Protection
      Theme_Keyword: CTDEP
      Theme_Keyword: geozui
    Theme:
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: oceans and estuaries
      Theme_Keyword: oceans and coastal
      Theme_Keyword: elevation
    Place:
      Place_Keyword_Thesaurus: General
      Place_Keyword: Connecticut
      Place_Keyword: New York
      Place_Keyword: Long Island
      Place_Keyword: U.S. East Coast
      Place_Keyword: United States
      Place_Keyword: North America
      Place_Keyword: Atlantic Ocean
      Place_Keyword: Long Island Sound
      Place_Keyword: Block Island Sound
      Place_Keyword: The Race
  Access_Constraints: None
  Use_Constraints:
    Data are not to be used for navigation purposes.

    Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the National Oceanic and Atmospheric Administration (NOAA) as the originator of this information.
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
        Contact_Person: Lawrence Poppe
      Contact_Position: Geologist
      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 x2314
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: lpoppe@usgs.gov
  Browse_Graphic:
    Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/grids/utm/geozui/b370_h11250_dtm2m.gif
    Browse_Graphic_File_Description: Thumbnail image showing the extent of soundings collected during NOAA survey H11250
    Browse_Graphic_File_Type: GIF
  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
  Cross_Reference:
    Citation_Information:
      Originator: L.J. Poppe
      Originator: M.L. DiGiacomo-Cohen
      Originator: S.M. Smith
      Originator: H.F. Stewart
      Originator: N.A. Forfinski
      Publication_Date: 2006
      Title: Seafloor character and sedimentary processes in eastern Long Island Sound and Western Block Island Sound
      Edition: 1.0
      Series_Information:
        Series_Name: Geo-Marine Letters
        Issue_Identification: v. 26, p. 59-68
      Publication_Information:
Data_Quality_Information:
  Completeness_Report: All collected data were processed and used to produce this dataset.  The area is considered complete; gaps in the data lie in areas inaccessible to the survey vessels (shallow water surrounding islands).
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report: Navigation was by differential GPS
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
      Type_of_Source_Media: DVD-ROM
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 200310
        Source_Currentness_Reference: ground condition
      Source_Contribution: The original multibeam bathymetric data acquired with a Simrad EM 1002 echosounder and Reson 8101 and 8125 systems during NOAA survey H11250 aboard the NOAA ship Thomas Jefferson.
    Process_Step:
      Process_Description: The multibeam data for was acquired in XTF (extended Triton data format), recorded digitally through an ISIS data acquisition system, and processed using CARIS HIPS (Hydrographic Image Processing System) software for quality control, to incorporate sound velocity and tidal corrections, and to produce base surfaces averaging 2-m resolution over the study area. The data were exported in GeoZui format (.gutm) in UTM Zone 18.
      Source_Used_Citation_Abbreviation: raw bathymetric data
      Process_Date: 2003
      Source_Produced_Citation_Abbreviation: b370_h11250_dtm2m.gutm
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Shep Smith
            Contact_Organization: National Oceanic and Atmospheric Administration
          Contact_Position: Field Operations Officer
          Contact_Address:
            Address_Type: mailing address
            Address: 439 West York Street
            City: Norfolk
            State_or_Province: VA
            Postal_Code: 23510
            Country: USA
          Contact_Voice_Telephone: (757) 441-6746
          Contact_Electronic_Mail_Address: shep.smith@noaa.gov
Spatial_Data_Organization_Information:
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 18
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -75.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: row and column
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257224
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
    Depth_System_Definition:
      Depth_Datum_Name: Mean Lower Low Water
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
  Overview_Description:
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey
        Contact_Person: Larry Poppe
      Contact_Position: Geologist
      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 x2314
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: lpoppe@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    Although this data set has been used by the U.S. Geological Survey (USGS), National Oceanic and Atmospheric Administration (NOAA) and Connecticut Department of Environmental Protection (CTDEP), 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: ASCII
        Format_Information_Content: The ASCII data (b370_h11250_dtm2m.gutm), browse graphic, and metadata.
        File_Decompression_Technique: zip archive
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/grids/utm/geozui/b370_h11250_dtm2m.zip
              Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/data/bathy/grids/utm/geozui/b370_h11250_dtm2m.gutm
              Network_Resource_Name: http://pubs.usgs.gov/of/2007/1012/html/catalog.html
          Access_Instructions: Data are downloadable via the World Wide Web (WWW).
        Offline_Option:
          Offline_Media: DVD-ROM
          Recording_Capacity:
            Recording_Density: 4.7
            Recording_Density_Units: Gbytes
          Recording_Format: UDF
    Fees: None
  Technical_Prerequisites: The user must have a program capable of reading and processing GeoZui files.  This program (GeoZui3D) can be downloaded free of charge via the World Wides Web (WWW) from Ocean Mapping, Marine GIS of the University of New Hampshire at:  http://www.seascallop.com/GeoZui.html
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2007
Metadata_Reference_Information:
  Metadata_Date: 20070601
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Larry Poppe
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      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 x2314
      Contact_Facsimile_Telephone: (508) 457-2310
      Contact_Electronic_Mail_Address: lpoppe@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
