Bathymetric Position Index (BPI) Zones 5 m grid derived from gridded bathymetry of Tau Island, Territory of American Samoa, USA.

Published by 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) | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: February 02, 2026 | Last Modified: 2010-06-14T00:00:00.000+00:00

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 R/V AHI, merged with seafloor depths derived from multispectral IKONOS satellite imagery. BPI Structures was was created using the Benthic Terrain Modeler (https://coast.noaa.gov/digitalcoast/tools/btm.html). Cell values represent one of 4 classes (crest, depression, flat, slope) in an index of seafloor terrains. This data set is for Ofu and Olosega Islands of the Manu'a Island group, American Samoa.

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Complete Metadata

describedByType	application/octet-steam
identifier	tau_5m_bpizones
issued	2010-06-14T00:00:00.000+00:00
language	[]
rights	otherRestrictions, unclassified
spatial	-169.410175,-14.286236,-169.597758,-14.186811
temporal	2002-11-07T00:00:00+00:00/2004-02-12T00:00:00+00:00

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