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)
20100901
Rugosity grid derived from gridded bathymetry of Apra Harbor, Guam U.S. Territory
raster digital data
http://www.soest.hawaii.edu/pibhmc
http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_apra_geomorph.htm
Rugosity is derived from gridded (1 m cell size)
multibeam bathymetry, collected aboard the Survey Vessel
Swamp Fox using the Terrain Modeler with rugosity methods
by Jeff Jenness (2003). Cell values reflect the surface area/planimetric area
ratio for the area contained within that cell's boundaries.
They provide indices of topographic roughness & convolutedness.
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 to 150m)
benthic habitats for different organisms that inhabit coral reef
ecosystems.
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) that can be accessed at: www.soest.hawaii.edu/pibhmc
and is included in the ZIP file containing the bathymetry grids.
References:
Jenness, J. 2003. Grid surface areas: Surface area and ratios from
elevation grids [Electronic manual]. Jenness Enterprises:
ArcView Extensions.
http://www.jennessent.com/arcview/arcview_extensions.htm
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/
20080329
20080504
ground condition
As needed
144.614
144.676
13.464
13.418
NCEI Geoportal FilterCoRIS_Metadata
CRCP Project
Benthic Habitat Mapping and Characterization - Commonwealth of the Northern Mariana Islands and Guam
1398
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Rugosity
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
None
Multibeam sonar
CoRIS Discovery Thesaurus
Geographic Information > Habitats
ISO 19115 Topic Category
imageryBaseMapsEarthCover
010
None
UTM Zone 55
Apra Harbor
Guam Island
U.S. Territory
United States of America
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Apra Harbour (13N144E0051)
COUNTRY/TERRITORY > United States of America > Guam > Apra Harbour (13N144E0051)
CoRIS Region
Guam
None
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.
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)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
http://www.soest.hawaii.edu/pibhmc/CNMI_images/apra_rug_1m_445.jpg
Gridded Bathymetry
JPG
NOAA PIFSC CRED and the Pacific Islands Benthic Habitat
Mapping Center, JIMAR and SOEST
Not applicable
Unclassified
Not applicable
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.
These data are believed to be logically
consistent though no tests were performed
Complete
Horizontal positioning system: see DAPR
Horizontal position accuracy: see DAPR
Range resolution of sonar: varies with depth
Raw sounding resolution: see DAPR
Rugosity was derived from the gridded multibeam bathymetry
(apra_bty_1m) using the Benthic Terrain Modeler (BTM). The BTM may
be downloaded from http://www.csc.noaa.gov/products/btm/. The BTM,
written for ArcGIS 8.x or 9.x, includes a component for deriving
rugosity using methods by Jeff Jenness as he wrote for ArcView 3.x.
20100810
Raster
Grid Cell
5061
6664
1
Universal Transverse Mercator
55
0.9996
147
0
500000
0
Row and Column
1
1
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
none
none
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)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
Downloadable Data
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.
Arc ASCII
Arc ASCII can be converted to Arc
Raster using ArcToolbox Conversion Tools (ASCIItoRaster).
ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/apra_rug_1m.zip
None
20200329
20101202
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)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
Universal Time
None
None
20101202024541
None
20080329
20080504
https://www.coris.noaa.gov/metadata/records/html/apra_rug_1m.html
6063