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)
20110304
Rugosity grid (5 m) derived from gridded bathymetry of the US Territory of Guam
raster digital data
http://www.soest.hawaii.edu/pibhmc
http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_gua_geomorph.htm
Rugosity 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.
Rugosity is derived using the Benthic Terrain Modeler with rugosity methods by
Jeff Jenness (2003). Cell values reflect the surface area to
planimetric area ratio for the area contained within that cell's
neighborhood. They provide indices of topographic roughness &
convolutedness. This data set is for the shelf environment of the US Territory of Guam.
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.
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 (http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/guam-island/bathymetry/).
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.
The terrestrial elevation data shown in the map for this data set are
SRTM Finished 3 arc sec Shaded Relief. They were collected during
NASA's Shuttle Radar Topograph Mission (SRTM). For more information
on the mission, go to:
http://www2.jpl.nasa.gov/srtm/faq.html#data. The data are available
from the United States Geological Survey (USGS) as reformatted
elevation data that are consistent with other Digital Elevation Models.
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.
https://coast.noaa.gov/digitalcoast//tools/btm/index.html
20010301
20080504
ground condition
As needed
144.608
145.009
13.727
13.220
NCEI Geoportal FilterCoRIS_MetadataCRCP ProjectM218 Benthic Habitat Mapping and Characterization in the Pacific Islands Region1217
CoRIS Discovery Thesaurus
Geographic Information > Habitats
ISO 19115 Topic Category
imageryBaseMapsEarthCover
010
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Rugosity
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
CoRIS Region
Guam
None
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).
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/guam_5m_Rugosity_445.jpg
Gridded Bathymetry Derivative
JPG
NOAA PIFSC CRED, PIBHMC, NOAA OCS, NAVO, JALBTCX
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: GPS C/A
Horizontal position accuracy: 25 meters
Range resolution of sonar: varies with depth
Raw sounding resolution: varies with depth
Vertical accuracy of gridded product ~ 1% of water depth
Rugosity was derived from the gridded multibeam bathymetry
(gua_mb_ld) using the Benthic Terrain Modeler (BTM). The BTM may
be downloaded from https://coast.noaa.gov/digitalcoast//tools/btm/index.html. 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.
20110304
Raster
Grid Cell
11155
8574
1
Universal Transverse Mercator
55
0.9996
147
0
500000
0
Row and Column
5
5
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/guam_5m_Rugosity.zip
None
20190605
20110906
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
20110906014537
None
20010301
20080504
https://www.coris.noaa.gov/metadata/records/html/guam_5m_rugosity.html
6358