Physics
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9521885r&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Dec. 10, 1990, p. 21885-21911.
Physics
66
Earth Gravitation, Geoids, Geopotential, Spherical Harmonics, Atmospheric Correction, Gravity Anomalies, Mathematical Models, Satellite Altimetry, Satellite Orbits
Scientific paper
Two new geopotential coefficient models to spherical harmonic degree 360 are developed using recent advances made in theoretical modeling methods, satellite gravitational models, and expanded and improved terrestrial data. The new models are based on the combination of a satellite potential coefficient model (GEM-T2) to degree 50 with 30-arc mean gravity anomalies, yielding an adjusted set of coefficients and gravity anomalies, which were then harmonically analyzed to yield a set of potential coefficients to degree 360. The models were verified in several ways including satellite orbit residual analysis, demonstrating a substantial improvement over previous high-degree expansions.
Pavlis Nikolaos K.
Rapp Richard H.
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