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  • Other Sources  (2)
  • 1985-1989  (2)
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  • 1
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    Unknown
    Terrestrial gravity data and comparisons with satellite data (1987)
    In:  Other Sources
    Details
    Publication Date: 2013-08-29
    Description: Figures that demonstrate the state of terrestrial gravity coverage, and comparisons between satellite derived gravity field and terrestrial gravity data are presented. It is shown that only a few areas of the world have information accurate enough for geodesy and geophysics. A gravity field mapping space mission is recommended.
    Keywords: GEOPHYSICS
    Type: ESA, Proceedings of an ESA-NASA Workshop on a Joint Solid Earth Program; p 27-30
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Unknown
    The decay of the spectrum of the gravitational potential and the topography for the earth (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The spectrum of the earth's gravitational potential and topography, as represented by spherical harmonic expansions to degree 180, have been computed. Modeling the decay in the form of (A x l) exp-Beta, values of A and Beta for several degree (l) ranges were computed. For degree range 5-180, Beta was 2.54 for the potential and 2.16 for equivalent rock topography. The potential decay was somewhat slower than that implied by Kaula's rule. However, at high degree ranges, the Beta values were larger agreeing better with recent determinations from terrestrial gravity data and geoid undulations implied by satellite altimetric data. The values imply that the potential decays faster at higher l values.
    Keywords: GEOPHYSICS
    Type: Geophysical Journal International (ISSN 0955-419X); 99; 449-455
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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