Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Comparison of the deflection of the vertical components computed by astro-geodetic, gravimetric and topographic-isostatic techniques
Abstract 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.
Comparison of the deflection of the vertical components computed by astro-geodetic, gravimetric and topographic-isostatic techniques
Abstract 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.
Comparison of the deflection of the vertical components computed by astro-geodetic, gravimetric and topographic-isostatic techniques
Szabo, Bela (Autor:in)
1962
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Geodäsie , Geometrie , Geodynamik , Mathematik , Mineralogie
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