Regional recovery of the disturbing gravitational potential by inverting satellite gravitational gradients

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F16%3A43927095" target="_blank" >RIV/49777513:23520/16:43927095 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1093/gji/ggw008" target="_blank" >http://dx.doi.org/10.1093/gji/ggw008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/gji/ggw008" target="_blank" >10.1093/gji/ggw008</a>

Result language

angličtina

Original language name

Regional recovery of the disturbing gravitational potential by inverting satellite gravitational gradients

Original language description

Regional recovery of the disturbing gravitational potential in the area of Central Europe from satellite gravitational gradients data is discussed in this contribution. The disturbing gravitational potential is obtained by inverting surface integral formulas which transform the disturbing gravitational potential onto disturbing gravitational gradients in the spherical local north-oriented frame. Two numerical approaches that solve the inverse problem are considered. In the first approach, the integral formulas are rigorously decomposed into two parts, i.e., the effects of gradient data within near and distant zones. While the effect of the near zone is sought as an inverse problem, the effect of the distant zone is synthesized from the global gravitational model GGM05S using spectral weights given by truncation error coefficients up to the degree 150. In the second approach, a reference gravitational field up to the degree 180 is applied to reduce and smooth measured gravitational gradients. In both cases we recovered the disturbing gravitational tensor from each of the four well-measured gravitational gradients separately as well as from their combination. Obtained results are compared with the EGM2008, DIR-r2, TIM-r2 and SPW-r2 global gravitational models. The best fit was achieved for EGM08 and the second approach combining all four well-measured gravitational gradients.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DE - Earth magnetism, geodesy, geography

OECD FORD branch

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Project

<a href="/en/project/GA15-08045S" target="_blank" >GA15-08045S: Methods for validation, analysis and application of data from satellite missions in geodesy and geophysics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

GEOPHYSICAL JOURNAL INTERNATIONAL

ISSN

0956-540X

e-ISSN

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Volume of the periodical

205

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

89-98

UT code for WoS article

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EID of the result in the Scopus database

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