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  • 1945-1949  (1)
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Publisher
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 14 (1949), S. 145-162 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Résumé On déduit une formule qui permet de calculer, par rapport au champ total de gravité de la Terre, le gradient vertical de la pesanteur résultant des anomalies gravimétriques. Il s'en suit que la formule donnée parEvjen pour une surface plate est presque toujours suffisante dans les cas pratiques. On examine la précision du calcul à l'égard des applications géophysiques. Deux examples nous donnent une idée des variations du gradient vertical sur la surface de la Terre. Enfin on discute la méthode d'Evjen de calculer directement la structure a l'aide du gradient vertical.
    Notes: Summary A formula is derived, which allows to calculate the vertical gradient of gravity from gravity anomalies with consideration of the whole gravitational field of the earth. It is shown that the formula given byEvjen for a plane surface in practical cases is nearly always sufficient. The accuracy of calculation is to be checked with regard to the geophysical applications. Two examples give an idea of the variations of the vertical gradient at the earth's surface. FurthermoreEvjen's method of direct structural calculation by means of the vertical gradient is discussed.
    Type of Medium: Electronic Resource
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