A concerted effort to compile an upgraded digital gravity anomaly database, grid, and map for the United States by the end of 2002 is under way. This joint effort by the geophysics groups at the University of Texas at El Paso (UTEP), U.S. Geological Survey (USGS), and National Oceanic and Atmospheric Administration (NOAA) (with support from the National Imagery and Mapping Agency [NIMA]), is an outgrowth of the new geoscientific community initiative called Geoinformatics (www.geoinformaticsnetwork.org). This dominantly geospatial initiative reflects the realization by Earth scientists that existing information systems and techniques are inadequate to address the complex scientific...

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