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Topographic and atmospheric corrections of gravimetric geoid determination with special emphasis on the effects of harmonics of degrees zero and one
KTH, Superseded Departments, Infrastructure.
2001 (English)In: Journal of Geodesy, ISSN 0949-7714, E-ISSN 1432-1394, Vol. 75, no 6-May, 283-290 p.Article in journal (Refereed) Published
Abstract [en]

The topographic and atmospheric effects of gravimetric geoid determination by the modified Stokes formula, which combines terrestrial gravity and a global geopotential model, are presented. Special emphasis is given to the zero- and first-degree effects. The normal potential is defined in the traditional way, such that the disturbing potential in the exterior of the masses contains no zero- and first-degree harmonies. In contrast, it is shown that, as a result of the topographic masses, the gravimetric geoid includes such harmonics of the order of several centimetres. In addition, the atmosphere contributes with a zero-degree harmonic of magnitude within I cm.

Place, publisher, year, edition, pages
2001. Vol. 75, no 6-May, 283-290 p.
Keyword [en]
atmospheric effects, geoid, topographic effects
URN: urn:nbn:se:kth:diva-20979ISI: 000171264700005OAI: diva2:339676
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Sjöberg, Lars Erik
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