The approximation introduced by representing the earth's gravity field with a finite grid of mascons both at the earth's surface and at the bottom of the earth's crust

Details The approximation introduced by representing the earth's gravity field with a finite grid of mascons both at the earth's surface and at the bottom of the earth's crust The approximation introduced by representing the earth's gravity field with a finite grid of mascons both at the earth's surface and at the bottom of the earth's crust

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984adans..54.1023b&link_type=abstract

IN: Astrodynamics 1983; Proceedings of the Conference, Lake Placid, NY, August 22-25, 1983. Part 2 (A84-30526 13-13). San Diego,

Astronomy and Astrophysics

Astronomy

Approximation, Earth Crust, Earth Gravitation, Earth Surface, Gravitational Fields, Mascons, Satellite Orbits, Error Analysis, Geopotential, Gravity Anomalies, Magnetometers, Mathematical Models

Scientific paper

It is pointed out that the error involved in representing the earth's gravity field by a large but finite number of mascons is concentrated in the short wavelength part of the gravity spectrum. For estimating this error, it is, therefore, appropriate to use the 'flat-earth' approximations considered by Breakwell (1979). The present investigation is concerned with the mascon model error. Numerical results are presented for the case in which the density fluctuations are estimated from gradiometer measurements taken in a low satellite. Attention is given to the two-layer mascon model, the mascon model and an error analysis, and the numerical results.

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