Bathymetric Position Index (BPI) Zones Grid Derived from Gridded Bathymetry for Select U.S. Coral Reef Locations across the Pacific Ocean

Bathymetric Position Index (BPI) Zones are derived for islands and banks across the U.S. Pacific Islands Region from a focal mean analysis on bathymetry and slope, and were created using the Benthic Terrain Modeler. Cell values represent one of 4 classes (crest, depression, flat, slope) in an index of seafloor terrains. 

The grids are based primarily on gridded multibeam bathymetry collected aboard NOAA Ships Hi'ialakai and Oscar Elton Sette and aboard R/V AHI (Acoustic Habitat Investigator) from 2003 to 2012 by the PIFSC Ecosystem Sciences Division (ESD). Other sources of available data used to derive BPI Zones for a few locations include estimated depths derived from IKONOS satellite imagery from 2000 to 2002, LIDAR data from 2001 and 2007, and multibeam bathymetry collected in 2001 and 2002.

The BPI Zone grid generated for each location is available via the Pacific Islands Benthic Habitat Mapping Center (PIBHMC) website. The data, maps, layer files, and detailed documentation (more specific than this pacific-wide record) about the data sources and data processing steps used are included in the zip file for each location.

Tags: 467, american samoa, american samoa (14s170w0000), aquatic habitat, baker island, baker island (00n176w0001), bathymetric position index, bathymetric position index zones, bathymetry, bathymetry/seafloor topography, benthic habitat, benthic habitat mapping and characterization in the pacific islands region, biosphere, bpi, brooks banks (24n166w0002), central pacific ocean, cnmi, coastal processes, commonwealth of the northern mariana islands, complexity, coral reef conservation program, coral reef ecosystem division, coral reef ecosystem program, coral reefs, corals, country/territory, cred, crep, derived products, doc/noaa/nmfs/pifsc, earth science, ecosystem sciences division, equatorial pacific ocean, esd, french frigate shoals (24n166w0001), geographic information, geomorphology, geomorphology mapping, gis product, guam, guam (13n144e0000), habitat blueprint, habitat focus area, habitat mapping, hawaii, hawaii island, hawaii island (19n155w0003), hawaiian islands, hawaiian islands (21n157w0027), honolulu, howland island, howland island (00s176w0001), johnston atoll, johnston atoll (16n169w0001), kauai, kure atoll (28n178w0001), main hawaiian islands, mapping, mapping and ecospatial information products to support coral reef ecosystem management in the pacifi, mariana archipelago, mariana islands, marianas, marianas trench marine national monument, mhi, national marine fisheries service, niihau island, niihau island (21n160w0001), nmfs, noaa, north pacific ocean, northern mariana islands, northern mariana islands ( cnmi ) (18n146e0000), northwestern hawaiian islands, northwestern hawaiian islands (28n178w0000), nw pacific, nwhi, ocean basin, oceans, pacific islands benthic habitat mapping center, pacific islands fisheries science center, pacific ocean, pacific remote island areas, pacific remote islands marine national monument, papahanaumokuakea marine national monument, pearl and hermes reef (27n176w0001), pibhmc, pifsc, pria, reef habitat, reef monitoring and assessment, rose atoll marine national monument, rugosity, sea floor, seafloor, seafloor topography, south pacific ocean, u.s. department of commerce, united states of america, us doc, usa minor outlying islands, wake atoll, wake atoll (19n167e0001), west hawaii, western pacific ocean, zoology
Organization: National Oceanic and Atmospheric Administration, Department of Commerce