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Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2016-01-01T00:00:00.000+00:00

Substrate, Hard bottom vs. Soft bottom: This is a preliminary product. Cell values reflect whether the seafloor is hard bottom or soft bottom based on an unsupervised classification run using ArcGIS software with the Spatial Analyst extension. The classifications are based on backscatter, bathymetry, acoustic derivatives and optical data. Please see the individual metadata records for additional information on sources used and data processing steps for each location where data are available.

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467 Benthic Habitat Mapping and Characterization in the Pacific Islands Region Mapping and EcoSpatial Information Products to Support Coral Reef Ecosystem Management in the Pacific Islands Region Geographic Information > Bathymetry Geographic Information > Habitats EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > geomorphology Mapping EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs earth science > oceans > bathymetry/seafloor topography > Hard Soft Substrate earth science > oceans > bathymetry/seafloor topography > bathymetry Hard Soft Substrate surface measurements Coral Reef Conservation Program US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii Island (19N155W0003) COUNTRY/TERRITORY > United States of America > Hawaiian Islands (21N157W0027) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands (21N157W0027) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island > Hawaii Island (19N155W0003) Equatorial Pacific Ocean Marianas Trench Marine National Monument NW Pacific North Pacific Ocean Pacific Remote Islands Marine National Monument Papahanaumokuakea Marine National Monument Rose Atoll Marine National Monument South Pacific Ocean SEA FLOOR CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program PIFSC Pacific Islands Fisheries Science Center American Samoa CNMI Commonwealth of the Northern Mariana Islands Guam MHI Main Hawaiian Islands Mariana Islands Marianas NWHI Northwestern Hawaiian Islands PRIA Pacific Remote Island Areas West Hawaii DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce Geomorphology

Complete Metadata

describedByType	application/octet-steam
identifier	gov.noaa.nmfs.inport:35021
issued	2016-01-01T00:00:00.000+00:00
landingPage	https://www.fisheries.noaa.gov/inport/item/35021
language	[]
references	[ "https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/35021.pdf" ]
rights	otherRestrictions, unclassified
spatial	-155.822838,19.772429,-156.100504,20.061727
temporal	2012-06-09T00:00:00+00:00/2012-06-29T00:00:00+00:00

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