NOAA/NCEI 90-m Bathymetry: American Samoa

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A 90-m (3 arc-second) resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding American Samoa, including the islands of Tutuila, Ofu, Olosega, and Tau. It is referenced to a vertical tidal datum of Mean High Water (MHW) and was compiled from various data sources including: NOAA National Centers for Environmental Information (NCEI), formerly the National Geophysical Data Center (NGDC); the U.S. Geological Survey (USGS); Naval Oceanographic Office (NAVOCEANO); Gaia Geo Analytical; and other federal, state, and local government agencies, academic institutions, and private companies. Developed for the National Tsunami Hazard Mitigation Program (NTHMP) to support NOAA's tsunami forecasting and modeling efforts. Not to be used for navigational purposes. For a grayscale hillshade image layer of this dataset, see "as_ngdc_tutma_bathy90m_hillshade" in the distribution links listed in the metadata. For further details about this dataset, please see: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:647/html.

Data and resources

THREDDS Catalog

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File Information

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PacIOOS Voyager (Google Maps API)

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ERDDAP

This URL provides a viewer and/or data access for this dataset.

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NOAA Bathymetric Data Viewer

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Related URL

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Related URL

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Unnamed resource

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Research Organization Registry (ROR) Identifier

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Research Organization Registry (ROR) Identifier

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Research Organization Registry (ROR) Identifier

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Research Organization Registry (ROR) Identifier

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OPeNDAP

THREDDS OPeNDAP

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Research Organization Registry (ROR) Identifier

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OGC-WCS

Open Geospatial Consortium Web Coverage Service (WCS)

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Research Organization Registry (ROR) Identifier

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OGC-WMS

Open Geospatial Consortium Web Map Service (WMS)

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THREDDS_NetCDF_Subset

THREDDS NetCDF Subset Service

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Additional information

Temporal extent	1962-01-01 – 2008-01-01
Date (creation)	2009-09-30
Date (revision)	2009-09-30
Date (issued)	2015-07-30
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	The data may be used and redistributed for free but is not intended for navigational or legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show