Author : William M. Kaula
Release : 1961
Genre : Earth (Planet)
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A Geoid and World Geodetic System Based on a Combination of Gravimetric, Astro-geodetic, and Satellite Data - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Geoid and World Geodetic System Based on a Combination of Gravimetric, Astro-geodetic, and Satellite Data write by William M. Kaula. This book was released on 1961. A Geoid and World Geodetic System Based on a Combination of Gravimetric, Astro-geodetic, and Satellite Data available in PDF, EPUB and Kindle. A world-wide estimate of the gravity field, based on all available gravimetry and extended by Markov analysis using correlation with elevation, was combined with an estimate of the geoid based on astro-geodetic data covering 19% of the earth and with secular and long period variations of the 1957 Beta and 1958 Beta satellite orbits, into a generalization of least-squares adjustments taking correlation into account. The value obtained for the quadratic sum indicated that the estimates of variance and covariance should be increased about 44%. The results obtained include: Equatorial radius, 6378163 + or - 21 m; Flattening, 1/298.24 + or - 0.01; Equatorial gravity, 978043.6 + or - 1.2 milligals (Potsdam system); Datum shifts (with three-dimensional standard deviation) for the Americas system, + or - 35 m; Europe-Africa-Siberia-India system, + or - 38 m; Japan-Korea-Manchuria system, + or - 68 m; Coefficients in the spherical harmonic expression of the gravity field up to the 8th degree; and World-wide geoid heights, with standard deviations varying from + or - 10 m to + or - 22 m. (Author).