Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. The grid cells are spaced at regular intervals alon...

These hillshade datasets were derived from USGS 7.5' DEM Quads for the main 8 Hawaiian Islands. Individual DEM quads were first converted to a common datum, and vertical unit, and subsequently mosaicked in ArcGIS 9.x. The hillshade were created from th...

Highly detailed maps of benthic habitats within the lagoon along the western shore of Saipan were created by NOAA NCCOS. This data collection includes the information used to create these detailed maps, including: 1) a high resolution satellite image, 2) ...