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NOAA/PIBHMC 1-m Bathymetry: Guam: Apra Harbor: Hillshade

Published by Pacific Islands Ocean Observing System (PacIOOS) | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 21, 2026 at 08:53 AM | Dataset Last Updated: January 25, 2016 at 12:00 AM
A 1-m resolution gridded digital elevation model (DEM) grayscale hillshade for the bathymetry (ocean depth) surrounding Apra Harbor on the west coast of Guam compiled from ship-borne multibeam sonar surveys. Data collected by the Pacific Islands Benthic Habitat Mapping Center (PIBHMC) in support of NOAA's Coral Reef Conservation Program. Not to be used for navigational purposes. For the related dataset containing numeric bathymetry values for this image layer, see http://pacioos.org/metadata/pibhmc_bathy_1m_apra.html

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