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)
20110201
Bathymetric Position Index (BPI) Structures 5m grid derived from gridded
bathymetry of Tinian Island, Aguijan Island and Tatsumi Bank, Commonwealth of
the Northern Marianas
raster digital data
http://www.soest.hawaii.edu/pibhmc
BPI Structures are derived from a focal mean analysis on bathymetry and slope.
The bathymetry grid (5 m cell size) is derived from bathymetry from three sources:
Multibeam bathymetry collected by Coral Reef Ecosystem Division aboard NOAA R/V AHI, and
NOAA Ship Hi'ialakai; Multibeam bathymetry collected aboard the US Naval Ship Sumner, and
lidar, both collected by Naval Oceanographic Office; and bathymetry derived from multispectral
IKONOS satellite imagery. BPI Structures was created using the Benthic Terrain Modeler
(http://www.csc.noaa.gov/products/btm/). Cell values represent one of 13 classes in an index
of seafloor terrains.This data set is for Tinian and Aguijan Islands, and Tatsumi Bank,
Commonwealth of the Northern Marianas (CNMI).
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 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 bathymetry derived
from multispectral IKONOS satellite data and multibeam and lidar
bathymetry data provided by the US Naval Oceanographic Office.
The metadata for the bathymetry is documented in the product metadata,
TinMBLiDBmos_metadata.txt.
References:
Lundblad et al., 2006, A benthic terrain classification scheme for
American Samoa, Marine Geodesy, 29(2):89 - 111.
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ground condition
As needed
145.501531
145.755853
15.151218
14.803071
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 > Bathymetric Position Index Structures
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Tinian Island Reefs > Tinian Island (14N145E0005)
COUNTRY/TERRITORY > Northern Mariana Islands > Tinian > Tinian Island (14N145E0005)
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Tinian Island > Tatsumi Reef (14N145E0011)
COUNTRY/TERRITORY > Northern Mariana Islands > Tinian > Tatsumi Reef (14N145E0011)
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Aguihan Island Reefs > Aguihan Island (Aguijan) (14N145E0006)
COUNTRY/TERRITORY > Northern Mariana Islands > Aguihan > Aguihan Island (Aguijan) (14N145E0006)
CoRIS Region
CNMI
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/tinian_5m_BPIstructures_440.jpg
Gridded Bathymetry Derivative
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 Structures were derived from the gridded bathymetry (TinMBLiDBmos)
using the Benthic Terrain Modeler (BTM). The BTM (written for ArcGIS 8.x or 9.x) may be downloaded from
http://dusk2.geo.orst.edu/djl/samoa/tools.html.
BPI Structures are derived from two scales of a focal mean analysis
on bathymetry and slope. After testing various experimental combinations, two scales
(50 and 250) best identified fine scale structures while minimizing noise and optimizing
possible reef structures (also after Lundblad et al. 2006; see Supplemental_Information). Three
ranges of slope define flat, slope, and near vertical: x < 5; 5 < x < 70; x > 70.
There may be edge effects at the outer extent of the data.
20110131
Raster
Grid Cell
7670
5423
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/tinian_5m_BPIstructures.zip
None
20200329
20111104
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
20111104071313
None
20011109
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https://www.coris.noaa.gov/metadata/records/html/tinian_5m_bpistructures.html
6390