Emily Lundblad
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)
20070115
CRED Bathymetric Position Index (BPI) Zones grid derived from gridded
bathymetry of Tutuila Island, American Samoa, South Pacific
raster digital data
http://www.soest.hawaii.edu/pibhmc
BPI Zones are derived from a focal mean analysis on
bathymetry and slope. The grid is based on gridded (5 m cell size)
multibeam bathymetry, collected aboard NOAA Ship Hi'ialakai and
R/V AHI, and it was creating using the Benthic Terrain Modeler
(http://www.csc.noaa.gov/products/btm/). Cell values represent
one of 4 classes in an index of seafloor terrains. This data set
is for the shelf and slope environments of Tutuila Island,
American Samoa, South Pacific.
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 foot United States National Oceanographic and Atmospheric
Administration (NOAA) research ship, and aboard the R/V AHI
(Acoustic Habitat Investigator), a 25 foot survey launch owned and
operated by the NOAA Pacific Islands Fisheries Science Center in
Honolulu, HI. The metadata for the bathymetry is documented in
the product metadata, Tutuila_5m.asc.txt.
(http://www.soest.hawaii.edu/pibhmc/
pibhmc_AmSamoa_tutuila_bathy.htm#5meter)
References:
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/
20040130
20070112
ground condition
As needed
-170.928197
-170.484814
-14.195351
-14.384053
NCEI Geoportal FilterCoRIS_Metadata
CRCP Project
Benthic Habitat Mapping and Characterization - American Samoa and the U.S. Pacific Remote Island Area
1084
None
Bathymetric Position Index Zones
Bathymetry
Multibeam sonar
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
CoRIS Discovery Thesaurus
Geographic Information > Habitats
ISO 19115 Topic Category
oceans
014
imageryBaseMapsEarthCover
010
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)
COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)
None
Tutuila Island
American Samoa
South Pacific
Pacific Ocean
CoRIS Region
AmSam
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/amsamoa_images/Tutuila_5m_BPIzones_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: 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
Bathymetric Position Index Zones were derived from the gridded
multibeam bathymetry (Tutuila_5m) using the Benthic Terrain
Modeler (BTM). The BTM may be downloaded from
http://www.csc.noaa.gov/products/btm/. The BTM was written for
ArcGIS 8.x or 9.x.
Bathymetric Position Index (BPI) Zones are derived from a focal
mean analysis on bathymetry and slope. After testing 5
experimental scales, the bpi with scalefactor 250 was chosen
based on the diameter of reef structures seen in the bathymetry
(also after Lundblad et al. 2006; see Supplemental_Information).
Two ranges of slope defined flats and slopes:
x < 5 and 5 < x < 70.
20070112
Raster
Grid Cell
4162
9559
1
Universal Transverse Mercator
-2
0.9996
-171
0
500000
0
Row and Column
5
5
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
unknown
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).
http://www.soest.hawaii.edu/pibhmc/pibhmc_amsamoa_tutuila_geomorph.htm
None
Arc ASCII
https://www.ncei.noaa.gov/data/oceans/coris/data/NOAA/nmfs/pifsc/cred/Geomorphology/Tutuila_5m_BPIzones.zip
None
20200329
20081217
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
20081217122100
None
20040130
20070112
https://www.coris.noaa.gov/metadata/records/html/tutuila_5m_bpizones.jpg.html
2457