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: 20110304
Title:
Slope grid (5 m) derived from gridded bathymetry of US Territory of Guam
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_gua_geomorph.htm
Description:
Abstract:
Slope is derived from gridded (5 m cell size) bathymetry from four sources:
Multibeam bathymetry collected by Coral Reef Ecosystem Division aboard NOAA R/V AHI, and
NOAA Ship Hi'ialakai; multibeam bathymetry collected in Apra Harbor by the Naval Oceanographic
Office and NOAA Office of Coast Survey; lidar collected by the Naval Oceanographic Office; and lidar
collected by the Joint Airborne Lidar Bathymetry Technical Center of Expertise.
Cell values reflect the maximum rate of change (in degrees) in elevation between neighboring cells derived with the ArcGIS Spatial Analyst extension.
This data set is for the US Territory of Guam.
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
United States National Oceanographic and Atmospheric Administration
(NOAA) research ship, and 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. These data are integrated with multibeam and lidar
bathymetry data provided by the US Naval Oceanographic Office, NOAA Office of Coast Survey
and the Joint Airborne Lidar Bathymetry Technical Center of Expertise.
The metadata for these bathymetry data is documented in the product metadata,
Guam_5m_Bathymetry_mb&lidar.txt.
In two locations artifacts are visible in the data that result from the differing quality
of the lidar versus multibeam data. In the northeast of Guam, north of Anao Point, it is possible
to see the boundary between the lidar data (which shows as a rougher texture) and the deeper
multibeam data (which shows as a smoother texture). A similar artifact is visible in a very
small area along the northern edge of Pago Bay.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010301
Ending_Date: 20080504
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 144.608
East_Bounding_Coordinate: 145.009
North_Bounding_Coordinate: 13.727
South_Bounding_Coordinate: 13.220
Keywords:
Theme:
Theme_Keyword_Thesaurus: NCEI Geoportal Filter
Theme_Keyword: CoRIS_Metadata
Theme:
Theme_Keyword_Thesaurus: CRCP Project
Theme_Keyword:
M218 Benthic Habitat Mapping and Characterization in the Pacific Islands Region
Theme_Keyword: 1217
Theme:
Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus
Theme_Keyword:
EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description
Theme_Keyword:
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Slope
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: CoRIS Place Thesaurus
Place_Keyword:
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
Place_Keyword:
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
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 NOAA Pacific Islands Fisheries
Science Center (PIFSC) Coral Reef Ecosystem Division (CRED), the Joint Institute for Marine and
Atmospheric Research (JIMAR) University of Hawaii, the NOAA Office of Coast Survey (NOAA OCS), the Naval
Oceanographic Office (NAVO), and the Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX).
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:
Browse_Graphic_File_Description: Gridded Bathymetry Derivative
Browse_Graphic_File_Type: JPG
Data_Set_Credit: NOAA PIFSC CRED, PIBHMC, NOAA OCS, NAVO, JALBTCX
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable
