Identification_Information: 
  Citation: 
    Citation_Information: 
      Originator: Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
      Publication_Date: 20100901
      Title: Rugosity grid derived from gridded bathymetry of Apra Harbor, Guam U.S. Territory
      Geospatial_Data_Presentation_Form: raster digital data
      Online_Linkage: http://www.soest.hawaii.edu/pibhmc
      Online_Linkage: http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_apra_geomorph.htm
  Description: 
    Abstract: Rugosity is derived from gridded (1 m cell size)
      multibeam bathymetry, collected aboard the Survey Vessel
      Swamp Fox using the Terrain Modeler with rugosity methods
      by Jeff Jenness (2003). Cell values reflect the surface area/planimetric area
      ratio for the area contained within that cell's boundaries.
      They provide indices of topographic roughness & convolutedness.
    Purpose: The data were derived in support of NOAA Coral Reef Conservation
      Program goals. Goal 1 is to map all U.S. Coral Reef Ecosystems.
      This data set specifically addresses Objective 1 and 4: to develop
      high-resolution benthic maps and to characterize priority deep
      water reefs and associated habitats.  This derivative of
      bathymetry provides a GIS layer that may be used for benthic and
      essential fish habitat characterization, and for the study of
      geologic features. By combining the dataset with bathymetry,
      backscatter, other derivatives, and in situ data, they
      collectively compose benthic habitat maps which are designed to
      be used to understand and predict moderate depth (~20m to 150m)
      benthic habitats for different organisms that inhabit coral reef
      ecosystems.
    Supplemental_Information: Survey data were acquired by the United States Navy (USN) Fleet
      Survey Team (FST) with Survey Vessel Swamp Fox. A Reson 8125
      multibeam echosounder was mounted from an arm on the port
      side of the vessel. The Klein 3000 Side Scan Sonar is operated
      in the stern-towed configuration. Additional detailed
      information on data acquisition, equipment configuration, and
      corrections can be found in the Data Acquisition and Processing
      Report (DAPR) that can be accessed at: www.soest.hawaii.edu/pibhmc
      and is included in the ZIP file containing the bathymetry grids.
      References:
      Jenness, J. 2003. Grid surface areas: Surface area and ratios from
      elevation grids [Electronic manual]. Jenness Enterprises:
      ArcView Extensions.
      http://www.jennessent.com/arcview/arcview_extensions.htm
      Lundblad et al., 2006, A benthic terrain classification scheme for
      American Samoa, Marine Geodesy, 29(2):89 - 111.
      http://www.csc.noaa.gov/products/btm/
  Time_Period_of_Content: 
    Time_Period_Information: 
      Range_of_Dates/Times: 
        Beginning_Date: 20080329
        Ending_Date: 20080504
    Currentness_Reference: ground condition
  Status: 
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain: 
    Bounding_Coordinates: 
      West_Bounding_Coordinate: 144.614
      East_Bounding_Coordinate: 144.676
      North_Bounding_Coordinate: 13.464
      South_Bounding_Coordinate: 13.418
  Keywords: 
    Theme: 
      Theme_Keyword_Thesaurus: NCEI Geoportal Filter
      Theme_Keyword: CoRIS_Metadata
    Theme: 
      Theme_Keyword_Thesaurus: CRCP Project
      Theme_Keyword: Benthic Habitat Mapping and Characterization - Commonwealth of the Northern Mariana Islands and Guam
      Theme_Keyword: 1398
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
      Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Rugosity
      Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
    Theme: 
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Multibeam sonar
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
      Theme_Keyword: Geographic Information > Habitats
    Theme: 
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: imageryBaseMapsEarthCover
      Theme_Keyword: 010
    Place: 
      Place_Keyword_Thesaurus: None
      Place_Keyword: UTM Zone 55
      Place_Keyword: Apra Harbor
      Place_Keyword: Guam Island
      Place_Keyword: U.S. Territory
      Place_Keyword: United States of America
    Place: 
      Place_Keyword_Thesaurus: CoRIS Place Thesaurus
      Place_Keyword: OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Apra Harbour (13N144E0051)
      Place_Keyword: COUNTRY/TERRITORY > United States of America > Guam > Apra Harbour (13N144E0051)
    Place: 
      Place_Keyword_Thesaurus: CoRIS Region
      Place_Keyword: Guam
  Access_Constraints: None
  Use_Constraints: These data are not to be used for navigation
    purposes. Please acknowledge the NOAA Pacific Islands Fisheries
    Science Center (PIFSC) Coral Reef Ecosystem Division (CRED) and
    the Pacific Islands Benthic Habitat Mapping Center, and the
    Joint Institute for Marine and Atmospheric Research (JIMAR) and
    School of Ocean and Earth Science and Technology (SOEST),
    University of Hawaii as the sources of this information.
  Point_of_Contact: 
    Contact_Information: 
      Contact_Organization_Primary: 
        Contact_Organization: Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
      Contact_Address: 
        Address_Type: mailing and physical address
        Address: NOAA IRC
        Address: NMFS/PIFSC/CRED
        Address: 1845 WASP Blvd., Building 176
        City: Honolulu
        State_or_Province: HI
        Postal_Code: 96818
      Contact_Voice_Telephone: 808 725-5360
      Contact_Facsimile_Telephone: 808 725-5429
      Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
      Contact_Instructions: e-mail preferred
  Browse_Graphic: 
    Browse_Graphic_File_Name: http://www.soest.hawaii.edu/pibhmc/CNMI_images/apra_rug_1m_445.jpg
    Browse_Graphic_File_Description: Gridded Bathymetry
    Browse_Graphic_File_Type: JPG
  Data_Set_Credit: NOAA PIFSC CRED and the Pacific Islands Benthic Habitat
    Mapping Center, JIMAR and SOEST
  Security_Information: 
    Security_Classification_System: Not applicable
    Security_Classification: Unclassified
    Security_Handling_Description: Not applicable
Data_Quality_Information: 
  Attribute_Accuracy: 
    Attribute_Accuracy_Report: Data are collected for resource
      management and research purposes and are tested for
      internal consistency; however, no effort is made to compare
      these data to external references or to other published data.
  Logical_Consistency_Report: These data are believed to be logically
    consistent though no tests were performed
  Completeness_Report: Complete
  Positional_Accuracy: 
    Horizontal_Positional_Accuracy: 
      Horizontal_Positional_Accuracy_Report: Horizontal positioning system: see DAPR
        Horizontal position accuracy: see DAPR
    Vertical_Positional_Accuracy: 
      Vertical_Positional_Accuracy_Report: Range resolution of sonar: varies with depth
        Raw sounding resolution: see DAPR
  Lineage: 
    Process_Step: 
      Process_Description: Rugosity was derived from the gridded multibeam bathymetry
        (apra_bty_1m) using the Benthic Terrain Modeler (BTM). The BTM may
        be downloaded from http://www.csc.noaa.gov/products/btm/. The BTM,
        written for ArcGIS 8.x or 9.x, includes a component for deriving
        rugosity using methods by Jeff Jenness as he wrote for ArcView 3.x.
      Process_Date: 20100810
Spatial_Data_Organization_Information: 
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information: 
    Raster_Object_Type: Grid Cell
    Row_Count: 5061
    Column_Count: 6664
    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: 55
          Transverse_Mercator: 
            Scale_Factor_at_Central_Meridian: 0.9996
            Longitude_of_Central_Meridian: 147
            Latitude_of_Projection_Origin: 0
            False_Easting: 500000
            False_Northing: 0
      Planar_Coordinate_Information: 
        Planar_Coordinate_Encoding_Method: Row and Column
        Coordinate_Representation: 
          Abscissa_Resolution: 1
          Ordinate_Resolution: 1
        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: 
  Overview_Description: 
    Entity_and_Attribute_Overview: none
    Entity_and_Attribute_Detail_Citation: none
Distribution_Information: 
  Distributor: 
    Contact_Information: 
      Contact_Organization_Primary: 
        Contact_Organization: Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
      Contact_Address: 
        Address_Type: mailing and physical address
        Address: NOAA IRC
        Address: NMFS/PIFSC/CRED
        Address: 1845 WASP Blvd., Building 176
        City: Honolulu
        State_or_Province: HI
        Postal_Code: 96818
      Contact_Voice_Telephone: 808 725-5360
      Contact_Facsimile_Telephone: 808 725-5429
      Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
      Contact_Instructions: e-mail preferred
  Resource_Description: Downloadable Data
  Distribution_Liability: These data are not to be used for navigational purposes.
    NOAA makes no warranty regarding these data, expressed or implied,
    nor does the fact of distribution constitute such a warranty.
    NOAA cannot assume liability for any damages caused by any errors
    or omissions in these data, nor as a result of the failure of
    these data to function on a particular system.
  Standard_Order_Process: 
    Digital_Form: 
      Digital_Transfer_Information: 
        Format_Name: Arc ASCII
        Format_Information_Content: Arc ASCII can be converted to Arc
          Raster using ArcToolbox Conversion Tools (ASCIItoRaster).
      Digital_Transfer_Option: 
        Online_Option: 
          Computer_Contact_Information: 
            Network_Address: 
              Network_Resource_Name: ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/apra_rug_1m.zip
    Fees: None
Metadata_Reference_Information: 
  Metadata_Date: 20200329
  Metadata_Review_Date: 20101202
  Metadata_Contact: 
    Contact_Information: 
      Contact_Organization_Primary: 
        Contact_Organization: Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
      Contact_Address: 
        Address_Type: mailing and physical address
        Address: NOAA IRC
        Address: NMFS/PIFSC/CRED
        Address: 1845 WASP Blvd., Building 176
        City: Honolulu
        State_or_Province: HI
        Postal_Code: 96818
      Contact_Voice_Telephone: 808 725-5360
      Contact_Facsimile_Telephone: 808 725-5429
      Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
      Contact_Instructions: e-mail preferred
  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
CoRIS: 
  CoRIS_ID: 20101202024541
  CoRIS_Children: None
  CoRIS_Beginning_Date: 20080329
  CoRIS_Ending_Date: 20080504
  CoRIS_Metadata_Link: https://www.coris.noaa.gov/metadata/records/html/apra_rug_1m.html
  CoRIS_Tracking_ID: 6063