CORRECTIONS TO GRAVITY FORMULA FROM DIRECT OBSERVATIONS AND ANOMALIES EXPRESSED IN LOWER DEGREE SPHERICAL HARMONICS

Abstract

The author had at his disposal 11,586 1 deg x 1 deg mean free air anomalies and 8,172 1 deg x 1 deg mean isostatic anomalies, which were determined from surface gravity observations. Using the least-squares solution, he computed corrections to the International Gravity Formula, and he also computed the theoretical gravity formula for the triaxial ellipsoid. He determined the coefficients for lower degree spherical harmonics. These were computed two different ways: (1) using surface gravity anomalies alone, (2) combining surface gravity information and zonal harmonics computed from satellite data. Departures from the International Gravity Formula, and the contributions of the lower degree spherical harmonics to the undulation of the geoid are given in map form. All computations are referred to the Potsdam System, g = 981.27400 gal. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1962
Accession Number
AD0282378

Entities

People

  • U.a. Uotila

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Coefficients
  • Computations
  • Ellipsoids
  • Geoids
  • Gravity
  • Gravity Anomalies
  • Harmonics
  • Mathematics
  • Observation
  • Spherical Harmonics
  • Undulation
  • Undulation Of The Geoid

Readers

  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris