Statistics – Computation
Scientific paper
Sep 1962
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962bgeod..36..227s&link_type=abstract
Bulletin Géodésique, Volume 36, Issue 3, pp.227-242
Statistics
Computation
Scientific paper
Three different types of deflection of the vertical components wre computed at a number of selected astronomical stations in the south central United States. Astro-geodetic deflections were obtained from the differences between the astronomical and geodetic coordinates of each station. Gravimetric deflections were computed from isostatic anomalies. The isostatic isoanomaly charts used in this computation were constructed from data obtained by correcting point values taken from existing free-air isoanomaly charts for the effects of the Bouguer reduction and the topographic-isostatic reduction. It is felt that this procedure substantially reduces the labor involved in making isostatic reductions without sacrificing accuracy appreciably. Topographic-isostatic deflections were computed by Hayford's Method as modified by Orlin. The differences between the three types of deflection components are compared and conclusions made concerning their accuracy and utility.
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