Layer: Gravity Observations

This layer includes gravity observations throughout Washington State. Included for each observation is an observed gravity value, an isostatic correction, a terrain correction, a free-air anomaly value, and a complete Bouguer gravity anomaly value. This dataset was obtained through the GeoNet Gravity Dataset Repository, developed and maintained by the Pan American Center for Earth & Environmental Studies (PACES). In 2003, PACES in cooperation with the U.S. Geological Survey (USGS), the National Geospatial-Intelligence Agency (NGA), National Oceanic and Atmospheric Administration (NOAA), and other colleagues from industry and academia, completed a compilation of gravity data throughout North America to develop the GeoNet Gravity Dataset Repository. The data incorporated into this database were originally derived from a variety of sources including the NGA, National Geodetic Survey (NGS), Defense Mapping Agency (DMA), and the USGS.