Identification_Information: 
  Citation: 
    Citation_Information: 
      Originator: Emily Lundblad
      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: 20070115
      Title: CRED Bathymetric Position Index (BPI) Zones grid derived from gridded
        bathymetry of Tutuila Island, American Samoa, South Pacific
      Geospatial_Data_Presentation_Form: raster digital data
      Online_Linkage: http://www.soest.hawaii.edu/pibhmc
  Description: 
    Abstract: BPI Zones are derived from a focal mean analysis on
      bathymetry and slope. The grid is based on gridded (5 m cell size)
      multibeam bathymetry, collected aboard NOAA Ship Hi'ialakai and
      R/V AHI, and it was creating using the Benthic Terrain Modeler
      (https://coast.noaa.gov/digitalcoast/tools/btm.html). Cell values represent
      one of 4 classes in an index of seafloor terrains. This data set
      is for the shelf and slope environments of Tutuila Island,
      American Samoa, South Pacific.
    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 - 150m) benthic
      habitats for different organisms that inhabit coral reef ecosystems.
    Supplemental_Information: Gridded multibeam data were collected aboard the Hi'ialakai, a
      218 foot United States National Oceanographic and Atmospheric
      Administration (NOAA) research ship, and aboard the R/V AHI
      (Acoustic Habitat Investigator), a 25 foot survey launch owned and
      operated by the NOAA Pacific Islands Fisheries Science Center in
      Honolulu, HI.  The metadata for the bathymetry is documented in
      the product metadata, Tutuila_5m.asc.txt.
      (http://www.soest.hawaii.edu/pibhmc/
      pibhmc_AmSamoa_tutuila_bathy.htm#5meter)
      References:
      Lundblad et al., 2006, A benthic terrain classification scheme for
      American Samoa, Marine Geodesy, 29(2):89 - 111.
      https://coast.noaa.gov/digitalcoast/tools/btm.html
  Time_Period_of_Content: 
    Time_Period_Information: 
      Range_of_Dates/Times: 
        Beginning_Date: 20040130
        Ending_Date: 20070112
    Currentness_Reference: ground condition
  Status: 
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain: 
    Bounding_Coordinates: 
      West_Bounding_Coordinate: -170.928197
      East_Bounding_Coordinate: -170.484814
      North_Bounding_Coordinate: -14.195351
      South_Bounding_Coordinate: -14.384053
  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 - American Samoa and the U.S. Pacific Remote Island Area               
      Theme_Keyword: 1084
    Theme: 
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Bathymetric Position Index Zones
      Theme_Keyword: Bathymetry
      Theme_Keyword: Multibeam sonar
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
      Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
      Theme_Keyword: Geographic Information > Habitats
    Theme: 
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: oceans
      Theme_Keyword: 014
      Theme_Keyword: imageryBaseMapsEarthCover
      Theme_Keyword: 010
    Place: 
      Place_Keyword_Thesaurus: CoRIS Place Thesaurus
      Place_Keyword: OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)
      Place_Keyword: COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)
    Place: 
      Place_Keyword_Thesaurus: None
      Place_Keyword: Tutuila Island
      Place_Keyword: American Samoa
      Place_Keyword: South Pacific
      Place_Keyword: Pacific Ocean
    Place: 
      Place_Keyword_Thesaurus: CoRIS Region
      Place_Keyword: AmSam
  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: https://www.soest.hawaii.edu/pibhmc/amsamoa_images/Tutuila_5m_BPIzones_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: GPS C/A
        Horizontal position accuracy: 25 meters
    Vertical_Positional_Accuracy: 
      Vertical_Positional_Accuracy_Report: Range resolution of sonar: varies with depth
        Raw sounding resolution: varies with depth
        Vertical accuracy of gridded product ~ 1% of water depth
  Lineage: 
    Process_Step: 
      Process_Description: Bathymetric Position Index Zones were derived from the gridded
        multibeam bathymetry (Tutuila_5m) using the Benthic Terrain
        Modeler (BTM). The BTM may be downloaded from
        https://coast.noaa.gov/digitalcoast/tools/btm.html. The BTM was written for
        ArcGIS 	8.x or 9.x.
        Bathymetric Position Index (BPI) Zones are derived from a focal
        mean analysis on bathymetry and slope. After testing 5
        experimental scales, the bpi with scalefactor 250 was chosen
        based on the diameter of reef structures seen in the bathymetry
        (also after Lundblad et al. 2006; see Supplemental_Information).
        Two ranges of slope defined flats and slopes:
        x < 5 and 5 < x < 70.
      Process_Date: 20070112
Spatial_Data_Organization_Information: 
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information: 
    Raster_Object_Type: Grid Cell
    Row_Count: 4162
    Column_Count: 9559
    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: -2
          Transverse_Mercator: 
            Scale_Factor_at_Central_Meridian: 0.9996
            Longitude_of_Central_Meridian: -171
            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: 5
          Ordinate_Resolution: 5
        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: unknown
    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: http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tutuila_geomorph.htm
    Fees: None
  Standard_Order_Process: 
    Digital_Form: 
      Digital_Transfer_Information: 
        Format_Name: Arc ASCII
      Digital_Transfer_Option: 
        Online_Option: 
          Computer_Contact_Information: 
            Network_Address: 
              Network_Resource_Name: https://www.ncei.noaa.gov/data/oceans/coris/data/NOAA/nmfs/pifsc/cred/Geomorphology/Tutuila_5m_BPIzones.zip
    Fees: None
Metadata_Reference_Information: 
  Metadata_Date: 20241215
  Metadata_Review_Date: 20081217
  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: 20081217122100
  CoRIS_Children: None
  CoRIS_Beginning_Date: 20040130
  CoRIS_Ending_Date: 20070112
  CoRIS_Metadata_Link: https://www.coris.noaa.gov/metadata/records/html/tutuila_5m_bpizones.jpg.html
  CoRIS_Tracking_ID: 2457