Bathymetric Position Index (BPI) Structures 5 m grid derived from gridded bathymetry of Ofu and Olosega Islands, Territory of American Samoa, USA.
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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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: 20100428
- Title:
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Bathymetric Position Index (BPI) Structures 5 m grid derived from gridded
bathymetry of Ofu and Olosega Islands, Territory of American Samoa, USA.
- Geospatial_Data_Presentation_Form: raster digital data
- Online_Linkage:
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http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_ofu_geomorph.htm
- Description:
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- Abstract:
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BPI Structures are derived from two scales of a focal mean
analysis on bathymetry and slope. The grid is based on
gridded (5 m cell size) multibeam bathymetry, collected aboard R/V AHI
merged with seafloor depths derived from multispectral
IKONOS satellite imagery. BPI Structures was created using the Benthic
Terrain Modeler (http://www.csc.noaa.gov/products/btm/). Cell values
represent one of 13 classes in an index of seafloor terrains. This data set
is for Ofu and Olosega Islands of the Manu'a Island group, American Samoa.
- Purpose:
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The data were derived in support of 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:
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Gridded bathymetry data were 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 and derived from multispectral IKONOS satellite
imagery. The metadata for the bathymetry is documented in
the product metadata, oo_dbmb_mos4.asc.
References:
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:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20060430
- Ending_Date: 20080531
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -169.705274
- East_Bounding_Coordinate: -169.583687
- North_Bounding_Coordinate: -14.133505
- South_Bounding_Coordinate: -14.203385
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: NCEI Geoportal Filter
- Theme_Keyword: CoRIS_Metadata
- Theme:
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- Theme_Keyword_Thesaurus: CRCP Project
- Theme_Keyword:
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Benthic Habitat Mapping and Characterization in the Pacific Islands Region
- Theme_Keyword: 467
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus
- Theme_Keyword: Geographic Information > Habitats
- Theme:
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- Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
- Theme_Keyword:
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EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetric Position Index Structures
- Theme:
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- Theme_Keyword_Thesaurus: None
- Theme_Keyword: Bathymetric Position Index Structures
- Theme_Keyword: Bathymetry
- Theme_Keyword: Multibeam sonar
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme_Keyword: 010
- Place:
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- Place_Keyword_Thesaurus: None
- Place_Keyword: Ofu Island
- Place_Keyword: Olosega Island
- Place_Keyword: American Samoa
- Place_Keyword: United States of America
- Place:
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- Place_Keyword_Thesaurus: CoRIS Place Thesaurus
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013)
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013)
- Place_Keyword:
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OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014)
- Place_Keyword:
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COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014)
- Place:
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- Place_Keyword_Thesaurus: CoRIS Region
- Place_Keyword: AmSam
- Access_Constraints: None
- Use_Constraints:
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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.
- Browse_Graphic:
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- Browse_Graphic_File_Name:
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http://www.soest.hawaii.edu/pibhmc/amsamoa_images/OfuOlo_5m_BPIStructures_445.jpg
- Browse_Graphic_File_Description: Gridded Bathymetry Derivative
- Browse_Graphic_File_Type: JPEG
- Data_Set_Credit: NOAA PIFSC CRED PIBHMC, JIMAR, and SOEST
- Security_Information:
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- Security_Classification_System: Not applicable
- Security_Classification: Unclassified
- Security_Handling_Description: Not applicable
- Native_Data_Set_Environment:
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ArcGIS ASCII file, derived from bathymetry and
slope in ArcGIS 9.3 (Spatial Analyst and Benthic Terrain Modeler)
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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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:
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These data are believed to be logically
consistent though no tests were performed
- Completeness_Report: Complete
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Horizontal positioning system: GPS C/A
Horizontal position accuracy: 25 meters
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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Range resolution of sonar: varies with depth
Raw sounding resolution: varies with depth
Vertical accuracy of gridded product ~ 1% of water depth
- Lineage:
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- Process_Step:
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- Process_Description:
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Bathymetric Position Index Structures were derived from the gridded
multibeam bathymetry (OO_dbmb_mos4) using the Benthic Terrain Modeler
(BTM). The BTM (written for ArcGIS 8.x or 9.x) may be downloaded from
http://dusk2.geo.orst.edu/djl/samoa/tools.html.
BPI Structures are derived from two scales of a focal mean analysis
on bathymetry and slope. After testing 10 experimental
combinations, two scales (50 and 250) best identified fine scale
structures for Ofu and Olosega Islands while
minimizing noise and optimizing possible reef structures (also
after Lundblad et al. 2006; see Supplemental_Information). Three
ranges of slope define flat, slope, and near vertical: x < 5;
5 < x < 70; x > 70. There may be edge effects on both landward and
seaward sides.
- Process_Date: 20100420
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Grid Cell
- Row_Count: 2617
- Column_Count: 1532
- Vertical_Count: 1
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Grid_Coordinate_System:
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- Grid_Coordinate_System_Name: Universal Transverse Mercator
- Universal_Transverse_Mercator:
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- UTM_Zone_Number: 2
- Transverse_Mercator:
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- Scale_Factor_at_Central_Meridian: 0.9996
- Longitude_of_Central_Meridian: -171
- Latitude_of_Projection_Origin: 0
- False_Easting: 500000
- False_Northing: 10000000
- Planar_Coordinate_Information:
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- Planar_Coordinate_Encoding_Method: Row and Column
- Coordinate_Representation:
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- Abscissa_Resolution: 5
- Ordinate_Resolution: 5
- Planar_Distance_Units: meters
- Geodetic_Model:
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- 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:
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- Overview_Description:
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- Entity_and_Attribute_Overview: none
- Entity_and_Attribute_Detail_Citation: none
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization:
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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_Person: John Rooney
- Contact_Address:
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- 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:
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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:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: Arc ASCII
- Format_Information_Content:
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Arc ASCII can be converted to Arc
Raster using ArcToolbox Conversion Tools (ASCIItoRaster).
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_ofu_geomorph.htm
- Fees: None
- Metadata_Reference_Information:
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- Metadata_Date: 20200329
- Metadata_Review_Date: 20100503
- 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:
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- CoRIS_ID: 20100503083005
- CoRIS_Children: None
- CoRIS_Beginning_Date: 20060430
- CoRIS_Ending_Date: 20080531
- CoRIS_Metadata_Link:
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https://www.coris.noaa.gov/metadata/records/html/ofuolo_5m_bpistructures.html
- CoRIS_Tracking_ID: 4901
Generated by mp version 2.9.48 on Thu Apr 18 11:02:10 2024