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: 20121225
      Title: Gridded multibeam bathymetry of Zealandia Bank,
        Commonwealth of the Northern Mariana Islands (CNMI).
      Geospatial_Data_Presentation_Form: digital data
      Online_Linkage: https://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/submerged-banks/zealandia-bank/
      Online_Linkage: https://www.soest.hawaii.edu/pibhmc/cms/
  Description: 
    Abstract: Gridded bathymetry shelf, bank and slope environments of
      Zealandia Bank, CNMI. Bottom coverage was achieved in depths
      between ~12 and 285 meters, The Arc ASCII grid includes multibeam
      bathymetry from the Simrad EM300 and Reson 8101 multibeam sonars
      collected as of June 2007 by the NOAA Coral Reef Ecosystem
      Division. The sonar frequencies are 30 and 240 kHz respectively.
    Purpose: The ASCII grid was created using data gathered
      from multibeam soundings for use as a planning and reference
      document. The data are also being used for benthic habitat
      mapping, for locating Essential Fish Habitat, and for studying
      geologic features of the area. Refer to supplemental information
      for description of instrument and survey.
    Supplemental_Information: Multibeam data were collected aboard the NOAA Ship Hi'ialakai, a
      218' United States National Oceanographic and Atmospheric
      Administration research ship. The NOAA Ship Hi'ialakai's survey
      sensors include a 30 kHz Simrad EM300 sonar and a 300 kHz Simrad
      EM3002d sonar, which provide bathymetry and imagery data, a
      TSS/Applanix POS/MV Model 320, which measures position, velocity,
      attitude and heading, and a Seabird SBE 9/11 plus CTD used to
      measure sound velocity profiles.
      Multibeam data were also collected aboard the R/V AHI (Acoustic
      Habitat Investigator), a 25' survey launch owned and operated by
      the NOAA Pacific Islands Fisheries Science Center in Honolulu,
      HI. The R/V AHI's survey sensors include a 240 kHz RESON 8101-ER
      sonar providing bathymetry and imagery data, a TSS/Applanix
      POS/MV Model 320 which measures position, velocity, attitude and
      heading, and a Seabird SBE 19 CTD used to measure sound velocity
      profiles.
      Specific equipment configurations are documented in metadata from
      cruises AHI0703 and HI0703. These metadata can be accessed at:
      https://www.soest.hawaii.edu/pibhmc/cms/cruise-catalog/
  Time_Period_of_Content: 
    Time_Period_Information: 
      Range_of_Dates/Times: 
        Beginning_Date: 20070525
        Ending_Date: 20070608
    Currentness_Reference: ground condition
  Status: 
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain: 
    Bounding_Coordinates: 
      West_Bounding_Coordinate: 145.839
      East_Bounding_Coordinate: 145.859
      North_Bounding_Coordinate: 16.904
      South_Bounding_Coordinate: 16.868
  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 in the Pacific Islands Region
      Theme_Keyword: 467
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
      Theme_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > geomorphology Mapping
      Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description
      Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
    Theme: 
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: elevation
      Theme_Keyword: 006
    Theme: 
      Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
      Theme_Keyword: Geographic Information > Bathymetry
    Place: 
      Place_Keyword_Thesaurus: None
      Place_Keyword: Zealandia Bank
      Place_Keyword: Commonwealth of the Northern Mariana Islands
      Place_Keyword: United States of America
    Place: 
      Place_Keyword_Thesaurus: CoRIS Place Thesaurus
      Place_Keyword: OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Mariana Islands > Zealandia Bank (16N145E0005)
      Place_Keyword: COUNTRY/TERRITORY > Northern Mariana Islands > Northern Mariana Islands > Zealandia Bank (16N145E0005)
    Place: 
      Place_Keyword_Thesaurus: CoRIS Region
      Place_Keyword: CNMI
  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: NOAA IRC
        Address: NMFS/PIFSC/CRED
        Address: 1845 WASP Blvd., Building 176
        City: Honolulu
        State_or_Province: HI
        Postal_Code: 96818
        Country: USA
      Contact_Voice_Telephone: 808 725-5360
      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/CNMI_images/ZEA_5m_bathy_445.jpg
    Browse_Graphic_File_Description: Gridded Bathymetry Derivative
    Browse_Graphic_File_Type: JPEG
  Data_Set_Credit: NOAA PIFS, CRED, PIBHMC, JIMAR, and SOEST
  Security_Information: 
    Security_Classification_System: Not applicable
    Security_Classification: Unclassified
    Security_Handling_Description: Not applicable
  Native_Data_Set_Environment: ArcGIS ASCII file, derived from bathymetry in ArcGIS 10.1
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: Multibeam swath files are acquired on and around each island and
        bank in the Generic Sensor Format (GSF) and are edited on a swath
        by swath basis using SAIC's SABER editing software. The edited
        swath files are then combined into a Pure File Magic (PFM) format
        with a defined grid cell size (5m) in SABER and area based
        editing is performed. The edited PFM is then exported as X,Y,Z
        data with a value at each grid node. The X,Y,Z data are then
        and gridded using nearneighbor, a Generic Mapping Tools (GMT)
        algorithm that converts an ASCII or binary table to a netCDF grid
        file format. NetCDF grids are then converted to an ArcGIS ASCII
        file format using LINUX/UNIX commands in combination with GMT.
        GMT is an open source collection of tools for manipulating
        geographic data sets. Additional information about GMT can be
        found at: http://www.soest.hawaii.edu/gmt and additional
        information about the multibeam data processing is recorded in
        the cruise metadata.
      Process_Date: 20071002
Spatial_Data_Organization_Information: 
  Direct_Spatial_Reference_Method: Raster
  Raster_Object_Information: 
    Raster_Object_Type: Grid Cell
    Row_Count: 799
    Column_Count: 421
    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: 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
  Vertical_Coordinate_System_Definition: 
    Depth_System_Definition: 
      Depth_Datum_Name: mean lower low water
      Depth_Resolution: 0.01
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information: 
  Overview_Description: 
    Entity_and_Attribute_Overview: Depth values are real values based on the average of the
      soundings that fell within the extracted grid cells.  The number
      of soundings per grid cell range from >1000 soundings in shallow
      depths to as few as 20 soundings in deeper areas.  A total error
      budget for these data have not been developed. Therefore, the
      accuracy of depth measurements should be considered to be within
      1 meter.
    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: NOAA IRC
        Address: NMFS/PIFSC/CRED
        Address: 1845 WASP Blvd., Building 176
        City: Honolulu
        State_or_Province: HI
        Postal_Code: 96818
        Country: USA
      Contact_Voice_Telephone: 808 725-5360
      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/bathymetry/zea_5m.zip
    Fees: None
Metadata_Reference_Information: 
  Metadata_Date: 20241215
  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
        Country: USA
      Contact_Voice_Telephone: 808 725-5360
      Contact_Electronic_Mail_Address: nmfs.pic.credinfo@noaa.gov
  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_Metadata_Link: https://www.coris.noaa.gov/metadata/records/html/zea_5m.html
  CoRIS_Tracking_ID: 6615