Precise determination of earth's center of mass using measurements from the Global Positioning System

Details Precise determination of earth's center of mass using measurements from the Global Positioning System Precise determination of earth's center of mass using measurements from the Global Positioning System

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.1487v&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 14, July 24, 1992, p. 1487-1490.

Physics

14

Center Of Mass, Earth Core, Geodetic Surveys, Global Positioning System, Laser Range Finders, Satellite-Borne Instruments, Topex, Very Long Base Interferometry

Scientific paper

Global Positioning System (GPS) data from a worldwide geodetic experiment were collected during a 3-week period early in 1991. Geocentric station coordinates were estimated using the GPS data, thus defining a dynamically determined reference frame origin which should coincide with the earth center of mass, or geocenter. The 3-week GPS average geocenter estimates agree to 7-13 cm with geocenter estimates determined from satellite laser ranging, a well-established technique. The RMS of daily GPS geocenter estimates were 4 cm for x and y, and 30 cm for z.

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