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:
Gridded multibeam bathymetry of Apra Harbor, Guam U.S. Territory
Geospatial_Data_Presentation_Form: digital data
Online_Linkage: http://www.soest.hawaii.edu/pibhmc
Online_Linkage: http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_apra_bathy.htm
Description:
Abstract:
Gridded bathymetry from Apra Harbor, Guam U.S. Territory. The netCDF and Arc
ASCII grids include multibeam bathymetry from the Reson SeaBat 8125 multibeam sonar
collected in 2008 by the NOAA Office of Coast Survey and the United States Navy Fleet
Survey Team. The sonar frequency is 455 kHz and the data are gridded at 1 m resolution.
The data served here were extracted from a Caris project provided by OCS and converted
to netCDF and Arc ASCII grids by the NOAA Coral Reef Ecosystem Division.
Purpose:
These data were collected in response to a request by the USN for a cooperative
modern hydrographic survey with NOAA to provide contemporary hydrographic data
to update the nautical charts in the area. The USN plans to use Apra Harbor, Guam
as a primary port-of-call. These data will support safe navigation for the USN fleet
in Apra Harbor by providing IHO Order 1 hydrography. They will also aid in
ongoing habitat mapping efforts by NOAA PIFSC CRED.
These netCDF and ASCII grids were 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.
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), SWAMPFOX_DAPR_2008.pdf, that can be accessed at: www.soest.hawaii.edu/pibhmc
and is included in the ZIP file containing the bathymetry grids.
Vertical_Coordinate_System_Definition Depth_System_Definition
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: None Planned
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 > 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
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bathymetry
Theme_Keyword: Multibeam sonar
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 NOAA Pacific Islands Fisheries
Science Center, the Joint Institute for Marine and
Atmospheric Research (JIMAR) University of Hawaii, the NOAA
Office of Coast Survey, and the USN Fleet Survey Team 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:
Browse_Graphic_File_Description: Multibeam Bathymetry
Browse_Graphic_File_Type: JPEG
Data_Set_Credit: NOAA OCS, USN FST, PIBHMC, CRED, PIFSC, NOAA, and JIMAR
Security_Information:
Security_Classification_System: Not applicable
Security_Classification: Unclassified
Security_Handling_Description: Not applicable
Native_Data_Set_Environment:
netCDF file created using the Generic
Mapping Tools (GMT) in a LINUX environment
ArcGIS ASCII file created in a LINUX environment
