Influence of the atmospheric masses on the gravitational field of the earth

Details Influence of the atmospheric masses on the gravitational field of the earth Influence of the atmospheric masses on the gravitational field of the earth

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979bgeod..53...61c&link_type=abstract

Bulletin Geodesique, vol. 53, no. 1, 1979, p. 61-77. Research supported by the Ohio State University;

Physics

Atmospheric Density, Earth Atmosphere, Earth Gravitation, Geopotential Height, Gravitational Fields, Gravity Anomalies, Annual Variations, Atmospheric Effects, Geoids, Latitude

Scientific paper

Seasonal and latitude dependent corrections to the gravity and height anomalies are developed in order to account for the neglect of the atmospheric masses outside the geoid, when using Stokes' equation. It is shown that the atmospheric correction to gravity at sea level is almost constant, equal to 0.871 mgals with a variation of 2 microgals whereas the height anomaly correction varies between -0.1 cm and -1.3 cm. Further, when the combined latitudinal/seasonal dependence is neglected in the atmospheric corrections, the maximum error introduced is on the order of 40 microgals for the gravity corrections and 0.7 cm for the height anomaly corrections.

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