NGS releases annual experimental geoid models and gravity interpolation tools - GPS World
NGS releases annual experimental geoid models and gravity interpolation tools My last column highlighted an ArcGIS web application that incorporates various datasets and data layers to assist surveyors planning vertical control surveys. On Jan, 29, the National Geodetic Survey (NGS) released the latest experimental geoid model, xGeoid20, and a new gravity interpolation tool (see box below, “NGS Releases Annual e& Gravity Interpolation Tools”). This newsletter will highlight some attributes of these two new products. First, why am I writing about another experimental geoid model. I discuss...
Source: gpsworld.com