Comparative evaluation of recent global representations of earth's gravity field

Details Comparative evaluation of recent global representations of earth's gravity field Comparative evaluation of recent global representations of earth's gravity field

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976geoj...46..535k&link_type=abstract

Geophysical Journal, vol. 46, no. 3, Sept. 1976, p. 535-553.

Physics

Geophysics

1

Earth Gravitation, Geophysics, Geopotential, Gravitational Fields, Planetary Gravitation, Graphs (Charts), Gravimetry, Gravity Anomalies, Satellite Observation, Spherical Harmonics, Statistical Analysis, Tables (Data)

Scientific paper

The paper compares and evaluates recent satellite-determined and combination models of the earth's gravitational field and attempts to select the one which best satisfies specific geophysical and orbital dynamical objectives. A statistical analysis of some of these models indicates that most gravity models are determined to a relative accuracy reflected by an rms of about 2 mgal of the differences between various models for the frequency range from n-2-7. Neither differences between various gravity models nor differences between purely satellite-determined geopotential models and their associated combination models show a consistent relationship with surface gravimetric coverage.

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