Abstract
The geodetic boundary value problem is formulated which uses as boundary values the differences between the geopotential of points at the surface of the continents and the potential of the geoid. These differences are computed by gravity measurements and levelling data. In addition, the shape of the geoid over the oceans is assumed to be known from satellite altimetry and the shape of the continents from satellite results together with three-dimensional triangulation. The boundary value problem thus formulated is equivalent to Dirichlet's exterior problem except for the unknown potential of the geoid. This constant is determined by an integral equation for the normal derivative of the gravitational potential which results from the first derivative of Green's fundamental formula. The general solution, which exists, of the integral equation gives besides the potential of the geoid the solution of the geodetic boundary value problem. In addition approximate solutions for a spherical surface of the earth are derived.
Similar content being viewed by others
References
W. BOSCH: Untersuchungen zu schiefachsigen und gemischeten Randwertaufgaben der Geodäsie. Deutsche Geodätische Kommission, Reihe C. Nr., 258, München 1979.
M. HOTINE: Mathematical Geodesy. ESSA Monograph 2, U.S. Department of Commerce, Washington 1969.
K.R. KOCH: Die Berechnung des Störpotentials und seiner Ableitungen aus den Integral-und Integrodifferentialgleichungen der Greenschen Fundamentalformel mit Hilfe schrittweiser Annäherung. Deutsche Geodätische Kommission, Reihe C, Nr. 105, München 1967 a.
K.R. KOCH: Determination of the First Derivatives of the Disturbing Potential by Green's Fundamental Formula. Department of Geodetic Science Rep. No. 90, The Ohio State University, Columbus 1967 b.
K.R. KOCH: Reformulation of the Geodetic Boundary Value Problem in View of the Results of Geometric Satellite Geodesy. In “Advances in Dynamic Gravimetry”, edited by W.T. Kattner, p. 111–114. Instrument Society of America, Pittsburgh 1970.
K.R. KOCH: Die geodätische Randwertaufgabe bei bekannter Erdoberfläche. Zeitschrift für Vermessungswesen, 96, Jg., p. 218–224, 1971.
K.R. KOCH: Parameterschätzung und Hypothesentests in linearen Modellen. Dümmiers Verlag, Bonn 1980.
K.R. KOCH and A.J. POPE: Uniqueness and Existence for the Geodetic Boundary Value Problem Using the Known Surface of the Earth. Bulletin Géodésique, No. 106, p. 467–476, 1972.
S.G. MICHLIN: Vorlesungen über lineare Integralgleichungen. Verlag der Wissenschaften, Berlin 1962.
C. MIRANDA: Partial Differential Equations of Elliptic Type. Springer-Verlag, Berlin 1970.
M.S. MOLODENSKII, V.F. EREMEEV and M.I. YURKINA: Methods for Study of the External Gravitational Field and Figure of the Earth. U.S. Department of Commerce, Washington 1962.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bosch, W., Koch, K.R. The geopotential from gravity measurements, levelling data and satellite results. Bull. Geodesique 54, 73–79 (1980). https://doi.org/10.1007/BF02521098
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02521098