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Benthic Habitat Maps for Rose Atoll Marine National Monument in American Samoa from 2004 to 2010

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 02, 2026 at 11:22 PM | Dataset Last Updated: January 01, 2017 at 12:00 AM
Benthic habitat maps for Rose Atoll, American Samoa were derived from high resolution, multispectral satellite imagery for 2004, 2006, and 2010. The benthic habitat maps for 2004 were previously generated by NOAA's NCCOS's BioGeography Branch before this project, and they were gathered from NOAA's 2005 publication (NCCOS, 2005). The benthic habitat maps for 2006 and 2010 were generated in this project. Bathymetry (water depth) from 0 to 30 meters was derived from satellite imagery for 2006 and 2010 and validated with multibeam and singlebeam depth data, respectively. Eight geomorphological features of the seafloor (Mean Depth, Standard Deviation of Depth, Slope, Slope of Slope, Rugosity, Curvature, Plan Curvature, and Profile Curvature) were derived from the bathymetry for 2006 and 2010. The geomorphological features were used to perform a Principal Component Analysis (PCA), and the first three Principal Components were used in combination with classified benthic imagery (underwater images of the seafloor) to classify the underwater habitat of the inner lagoon and sloping reef areas of Rose Atoll. The final benthic habitat maps consist of two maps for each of the three years. The first map shows the four dominant cover types that make up the shallow water benthic habitat on Rose Atoll, which are coral, coralline algae, macroalgae, and turf algae. The area in square kilometers of each cover types is provided. The purpose of the first map is to show the most abundant biological cover types in the benthic habitat. The second map show the percentages of the four dominant cover types, which are divided into three bins: 10%-<50% coverage, 50%-<90% coverage, and 90%-100% coverage. The area in square kilometers of each of the cover types is also provided. The purpose of the second map is to examine the smaller changes in the benthic habitat over the three years.

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467 Mapping and EcoSpatial Information Products to Support Coral Reef Ecosystem Management in the Pacific Islands Region Geographic Information > Habitats EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Slope EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "Akridge, Michael W",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:michael.akridge@noaa.gov"
}
describedByType application/octet-steam
description Benthic habitat maps for Rose Atoll, American Samoa were derived from high resolution, multispectral satellite imagery for 2004, 2006, and 2010. The benthic habitat maps for 2004 were previously generated by NOAA's NCCOS's BioGeography Branch before this project, and they were gathered from NOAA's 2005 publication (NCCOS, 2005). The benthic habitat maps for 2006 and 2010 were generated in this project. Bathymetry (water depth) from 0 to 30 meters was derived from satellite imagery for 2006 and 2010 and validated with multibeam and singlebeam depth data, respectively. Eight geomorphological features of the seafloor (Mean Depth, Standard Deviation of Depth, Slope, Slope of Slope, Rugosity, Curvature, Plan Curvature, and Profile Curvature) were derived from the bathymetry for 2006 and 2010. The geomorphological features were used to perform a Principal Component Analysis (PCA), and the first three Principal Components were used in combination with classified benthic imagery (underwater images of the seafloor) to classify the underwater habitat of the inner lagoon and sloping reef areas of Rose Atoll. The final benthic habitat maps consist of two maps for each of the three years. The first map shows the four dominant cover types that make up the shallow water benthic habitat on Rose Atoll, which are coral, coralline algae, macroalgae, and turf algae. The area in square kilometers of each cover types is provided. The purpose of the first map is to show the most abundant biological cover types in the benthic habitat. The second map show the percentages of the four dominant cover types, which are divided into three bins: 10%-<50% coverage, 50%-<90% coverage, and 90%-100% coverage. The area in square kilometers of each of the cover types is also provided. The purpose of the second map is to examine the smaller changes in the benthic habitat over the three years.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "ROS_BHM_ALL.zip",
    "format": "ZIP",
    "mediaType": "application/zip",
    "description": "The zip file for Rose Atoll contains 4 files for each habitat map series (Biological Cover Type, and the Percentages of Biological Cover) for each year (2004, 2006, and 2010): a map in PDF and JPG format, the data in Arc ASCII format (ASC), and a layer file (LYR).",
    "downloadURL": "ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/ROS_BHM_ALL.zip",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Full Metadata Record",
    "accessURL": "https://www.fisheries.noaa.gov/inport/item/46886",
    "mediaType": "text/html",
    "description": "View the complete metadata record on InPort for more information about this dataset.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/nmfs/pifsc/iso/xml/46886.xml
issued 2017-01-01T00:00:00.000+00:00
keyword 
[
  "467",
  "Mapping and EcoSpatial Information Products to Support Coral Reef Ecosystem Management in the Pacific Islands Region",
  "Geographic Information > Habitats",
  "EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat",
  "EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat",
  "EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
  "EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Slope",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Lagoons",
  "BOTTOM TYPE",
  "SUBSTRATE DESCRIPTION",
  "seafloor topography",
  "GIS product",
  "benthic",
  "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 > American Samoa > American Samoa > Rose Atoll (14S168W0001)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Island (14S170W0041)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Rose Atoll (14S168W0001)",
  "OCEAN BASIN > Pacific Ocean > Rose Atoll > Rose Island (14S170W0041)",
  "Rose Atoll Marine National Monument",
  "South Pacific Ocean",
  "Benthic habitat",
  "CRED",
  "CREP",
  "Coral Reef Ecosystem Division",
  "Coral Reef Ecosystem Program",
  "PIFSC",
  "Pacific Islands Fisheries Science Center",
  "DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "PIFSC CRED Pacific Islands Benthic Habitat Mapping Center (PIBHMC) Metadata Catalog"
]
landingPage https://www.fisheries.noaa.gov/inport/item/46886
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2017-01-01T00:00:00.000+00:00
publisher 
{
  "name": "Pacific Islands Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -168.13,-14.57,-168.18,-14.52
temporal 2006-02-01T00:00:00+00:00/2006-03-01T00:00:00+00:00
theme 
[
  "geospatial"
]
title Benthic Habitat Maps for Rose Atoll Marine National Monument in American Samoa from 2004 to 2010

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