'Frequency windows' from earth gravity models and resonant solutions - Test of the accuracy

Details 'Frequency windows' from earth gravity models and resonant solutions - Test of the accuracy 'Frequency windows' from earth gravity models and resonant solutions - Test of the accuracy

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986baicz..37..229s&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 37, July 1986, p. 229-239.

Astronomy and Astrophysics

Astronomy

Accuracy, Earth Gravitation, Frequency Distribution, Geopotential, Mathematical Models, Planetary Gravitation, Harmonic Functions, Statistical Analysis

Scientific paper

The authors suggest and also use a test for evaluating the accuracy of some of the harmonic (Stokes) coefficients in the Earth gravity field models (EMs). The results of resonant phenomena serve as a standard for testing the EMs. The main result of the test is that a good consistency in shape and phase shifts exists for recent EMs, but even for orders 12 ≤ m ≤ 15, where recent EMs are believed to be very reliable, some increase of the original accuracy estimates given by the authors of the EMs is needed. In general the accuracy has to be increased 2 - 3 times to achieve the real accuracy of the EMs.

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