Identification_Information:
  Citation:
    Citation_Information:
      Originator: U.S. Geological Survey
      Publication_Date: 2006
      Title: HLS10X360UTM: 2-m Hill-Shaded Bathymetric Grid of NOAA Survey H11255 in Long Island Sound (UTM Zone 18)
      Edition: 1.0
      Geospatial_Data_Presentation_Form: raster digital data
      Series_Information:
        Series_Name: Open-File Report
        Issue_Identification: 2006-1059
      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/2006/1059/data/grids/utm/h11255_utm18_hlshd2m/hls10x360utm.zip
      Online_Linkage: http://pubs.usgs.gov/of/2006/1059/html/catalog.html
      Larger_Work_Citation:
        Citation_Information:
          Originator: L.J. Poppe
          Originator: S.D. Ackerman
          Originator: E.F. Doran
          Originator: M.S. Moser
          Originator: H.F. Stewart
          Originator: N.A. Forfinski
          Originator: U.L. Gardner
          Originator: J.A. Keene
          Publication_Date: 2006
          Title: Geological interpretation and multibeam bathymetry of the sea floor in southeastern Long Island Sound
          Edition: 1.0
          Series_Information:
            Series_Name: Open-File Report
            Issue_Identification: 2006-1059
          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/2006/1059/
  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 H11255) covers roughly 95 km2 of seafloor in southeastern Long 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 2-m hill-shaded (i.e. sun-illuminated) bathymetric grid generated from multibeam data collected during NOAA survey H11255 in Long Island Sound in UTM zone 18.
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 20040919
        Ending_Date: 20041002
    Currentness_Reference: ground condition
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -72.798337
      East_Bounding_Coordinate: -72.635239
      North_Bounding_Coordinate: 41.098832
      South_Bounding_Coordinate: 41.014556
  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 H11255
      Theme_Keyword: H11255
      Theme_Keyword: National Oceanic and Atmospheric Administration
      Theme_Keyword: NOAA
      Theme_Keyword: grid
      Theme_Keyword: hill-shaded
      Theme_Keyword: sun-illuminated
      Theme_Keyword: Field Activity Number 04041
      Theme_Keyword: NOAA Project Identifier OPR-B370-TJ
      Theme_Keyword: NOAA Project Identifier S-B904-TJ
    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
  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 U.S. Geological Survey (USGS) as the source 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/2006/1059/data/grids/utm/h11255_utm18_hlshd2m/hls10x360utm.gif
    Browse_Graphic_File_Description: Overview image showing the location and extent of hill-shaded UTM Zone 18 bathymetric grid produced from multibeam data collected during NOAA survey H11255
    Browse_Graphic_File_Type: GIF
  Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
  Cross_Reference:
    Citation_Information:
      Originator: L.J. Poppe
      Originator: E.F. Doram
      Originator: M.S. Moser
      Originator: N.A. Forfinski
      Originator: U.L. Gardner
      Originator: J.A. Keene
      Originator: E.B. Christman
      Originator: S.D. Ackerman
      Publication_Date: 2005
      Title: Distribution, character, and importance of sedimentary furrows in south-central Long Island Sound
      Edition: 1.0
      Series_Information:
        Series_Name: EOS
        Issue_Identification: OS23B-07
      Publication_Information:
        Publication_Place: Washington, DC
        Publisher: American Geophysical Union
Data_Quality_Information:
  Completeness_Report: All collected data were processed and used to produce this dataset.
  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: unknown
        Source_Currentness_Reference: ground condition
      Source_Contribution: The original multibeam bathymetric data acquired with a Simrad EM 1002 echosounder during NOAA cruise H11255 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 at two resolutions: 1-m resolution in the shallower southeastern corner; 2-m resolution over the remaining study area. Among other formats (.tif and .asc), the data were exported in GeoZui format (.gutm) in UTM Zone 18.
      Process_Date: Unknown
      Source_Produced_Citation_Abbreviation: h11255_1m.gutm
      Source_Produced_Citation_Abbreviation: h11255_2m.gutm
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Marc Moser
            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: marc.s.moser@noaa.gov
    Process_Step:
      Process_Description: The GeoZui files were imported into Fledermaus and exported as xyz files.  The xyz files were moved to a Linux system where they were cleaned to remove ASCII errors and combined (concatenated) into one file at an optimal resolution of 2 m.
      Source_Used_Citation_Abbreviation: h11255_1m.gutm
      Source_Used_Citation_Abbreviation: h11255_2m.gutm
      Process_Date: Unknown
      Source_Produced_Citation_Abbreviation: h11255_2mutm18_xyz.txt
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Seth Ackerman
            Contact_Organization: U.S. Geological Survey
          Contact_Position: GIS Specialist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: 384 Woods Hole Road
            City: Woods Hole
            State_or_Province: MA
            Postal_Code: 02543
            Country: USA
          Contact_Voice_Telephone: 508-548-8700 x2315
          Contact_Facsimile_Telephone: 508-457-2310
          Contact_Electronic_Mail_Address: sackerman@usgs.gov
    Process_Step:
      Process_Description: SwathEd software, produced by the Ocean Mapping Group at the University of New Brunswick, was used to create an ASCII grid from the xyz text file and ArcCatalog was used to convert the ASCII grid to a raster grid.  A hill-shaded surface was generated from the grid using 3D Analyst Tools with sun illumination from 0 degrees (a direction parallel to most ship tracks to minimize artifacts) and an angle 45 degrees above the horizon, and to vertically exaggerate the surface 10x.  The component files were compressed into a zip archive.
      Source_Used_Citation_Abbreviation: h11255_2mutm18_xyz.txt
      Process_Date: Unknown
      Source_Produced_Citation_Abbreviation: bathy2m_utm18
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Seth Ackerman
            Contact_Organization: U.S. Geological Survey
          Contact_Position: GIS Specialist
          Contact_Voice_Telephone: 508-548-8700 x2315
          Contact_Facsimile_Telephone: 508-457-2310
          Contact_Electronic_Mail_Address: sackerman@usgs.gov
    Process_Step:
      Process_Description: A hill-shaded surface was generated from the grid using 3D Analyst Tools with sun illumination from 0 degrees (a direction parallel to most ship tracks to minimize artifacts) and an angle 45 degrees above the horizon, and to vertically exaggerate the surface 10x.
      Source_Used_Citation_Abbreviation: bathy2m_utm18
      Source_Produced_Citation_Abbreviation: hls10x360utm
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Person: Seth Ackerman
          Contact_Position: GIS Specialist
          Contact_Voice_Telephone: 508-548-8700 x2315
          Contact_Facsimile_Telephone: 508-457-2310
          Contact_Electronic_Mail_Address: sackerman@usgs.gov
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information:
    Raster_Object_Type: Grid Cell
    Row_Count: 4505
    Column_Count: 6740
    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: 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
        Coordinate_Representation:
          Abscissa_Resolution: 2.000000
          Ordinate_Resolution: 2.000000
        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
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
    Depth_System_Definition:
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: hls10x360utm
    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: Count
  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 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: ARCG
        Format_Specification: ESRI Raster Grid
        Format_Information_Content: One File (hls10x360utm.zip) containing the ArcInfo grid file components, browse graphic, and metadata
        File_Decompression_Technique: zip archive
        Transfer_Size: 23.462
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/of/2006/1059/data/grids/utm/h11255_utm18_bathy2m/hls10x360utm.zip
              Network_Resource_Name: http://pubs.usgs.gov/of/2006/1059/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
    Fees: None
  Technical_Prerequisites: The user must have a program similar to ArcGIS that is capable of reading and processing the data files.
  Available_Time_Period:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2006
Metadata_Reference_Information:
  Metadata_Date: 20060719
  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
