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)
20121130
Rugosity grid derived from gridded bathymetry of of Galvez Bank, South Galvez Bank, and 11-Mile Reef, Territory of Guam, USA.
Raster digital data
http://www.soest.hawaii.edu/pibhmc/cms/data-by-location/cnmi-guam/submerged-banks/galvez-bank/galvez-bank-geomorphology/
http://www.soest.hawaii.edu/pibhmc
Rugosity is derived from gridded (5 m cell size) multibeam bathymetry, aboard NOAA Ship Oscar Elton Sette. 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. This data set is for Galvez Bank, South Galvez Bank, and 11-Mile Reef, Territory of Guam, USA.
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 bathymetry data were collected aboard the NOAA Ship Oscar Elton Sette, a 224' (68 m) United States
National Oceanographic and Atmospheric Administration research ship. The NOAA Ship
Sette's survey sensors included a 240-kHz pole-mounted Reson 8101ER sonar, which provides
bathymetry and imagery data, a TSS/Applanix POS/MV Model 320, which measures position,velocity, attitude and
heading, and a Seabird SBE19 CTD used to measure sound velocity profiles.
The metadata for the bathymetry is documented in this product metadata:
ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/bathymetry/3Banks_Guam_5m.txt
Specific equipment configurations are documented in metadata from cruise
SE1002. These metadata can be accessed at:
http://www.soest.hawaii.edu/pibhmc/cms/cruise-catalog/
Rugosity was calculated using the Rugosity Builder tool within the Benthic
Terrain Modeler (https://coast.noaa.gov/digitalcoast//tools/btm/).
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
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information: gal_5m_rug
Raster_Object_Type: Grid Cell
Row_Count: 1869
Column_Count: 1623
Vertical_Count: 1
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information: sgal_5m_rug
Raster_Object_Type: Grid Cell
Row_Count: 905
Column_Count: 1293
Vertical_Count: 1
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information: ele_5m_rug
Raster_Object_Type: Grid Cell
Row_Count: 357
Column_Count: 307
Vertical_Count: 1
20100211
20100314
ground condition
As needed
144.391
144.500
13.233
12.983
NCEI Geoportal FilterCoRIS_MetadataCRCP ProjectBenthic Habitat Mapping and Characterization in the Pacific Islands Region467
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
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Rugosity
ISO 19115 Topic Category
010
imageryBaseMapsEarthCover
CoRIS Discovery Thesaurus
Geographic Information > Habitats
None
Galvez Bank
Territory of Guam
United States of America
None
South Galvez Bank
Territory of Guam
United States of America
None
11-Mile Reef
Territory of Guam
United States of America
CoRIS Place Thesaurus
COUNTRY/TERRITORY > United States of America > Guam > Galvez Bank (13N144E0049)
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Galvez Bank (13N144E0049)
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), NOAA National Marine Fisheries Service (NMFS)
mailing and physical
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
nmfs.pic.credinfo@noaa.gov
e-mail preferred
http://www.soest.hawaii.edu/pibhmc/CNMI_images/GAL_5m_rug_440.jpg
Gridded Bathymetry Derivative
JPEG
NOAA PIFS, CRED, PIBHMC, JIMAR, and SOEST
ArcGIS ASCII file, derived from bathymetry and
slope in ArcGIS 9.3 (Benthic Terrain Modeler)
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 of Galvez Bank (gal5m), South Galvez Bank (sgal5m)
and Eleven-mile Reef (ele5m) using the Benthic Terrain Modeler (BTM) in ArcGIS 9.3.
The BTM (written for ArcGIS 8.x, 9.x or 10.x) may be downloaded from
http://dusk2.geo.orst.edu/djl/samoa/tools.html. It includes a component for deriving
rugosity using methods by Jeff Jenness that he wrote for ArcView 3.x.
20121122
Universal Transverse Mercator
55
.9996
-147
0
500000
0
Row and Column
5
5
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
mean lower low water
0.01
meters
Attribute Values
none
none
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED),
Pacific Islands Fisheries Science Center (PIFSC), NOAA National Marine Fisheries Service (NMFS)
mailing and physical
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
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/gal_5m_Rugosity.zip
None
20190605
20121203
Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED),
Pacific Islands Fisheries Science Center (PIFSC), NOAA National Marine Fisheries Service (NMFS)
mailing and physical
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
nmfs.pic.credinfo@noaa.gov
e-mail preferred
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
Universal Time
None
None
20121203013900
None
20100211
20100314
https://www.coris.noaa.gov/metadata/records/html/gal_5m_rug.html
6572