Far-zone gravity field contributions corrected for the effect of topography by means of Molodensky's truncation coefficients

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F11%3A43898401" target="_blank" >RIV/49777513:23520/11:43898401 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11200-011-0004-7" target="_blank" >http://dx.doi.org/10.1007/s11200-011-0004-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11200-011-0004-7" target="_blank" >10.1007/s11200-011-0004-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Far-zone gravity field contributions corrected for the effect of topography by means of Molodensky's truncation coefficients

Popis výsledku v původním jazyce

To reduce the numerical complexity of inverse solutions to large systems of discretised integral equations in gravimetric geoid/quasigeoid modelling, the surface domain of Green's integrals is subdivided into the near-zone and far-zone integration sub-domains. The inversion is performed for the near zone using regional detailed gravity data. The far zone contributions to the gravity field quantities are estimated from an available global geopotential model using techniques for a spherical harmonic analysis of the gravity field. For computing the far-zone contributions by means of Green's integrals, truncation coefficients are applied. Different forms of truncation coefficients have been derived depending on a type of integrals in solving various geodetic boundary-value problems. In this study, we utilise Molodensky's truncation coefficients to Green's integrals for computing the far-zone contributions to the disturbing potential, the gravity disturbance, and the gravity anomaly.

Název v anglickém jazyce

Far-zone gravity field contributions corrected for the effect of topography by means of Molodensky's truncation coefficients

Popis výsledku anglicky

To reduce the numerical complexity of inverse solutions to large systems of discretised integral equations in gravimetric geoid/quasigeoid modelling, the surface domain of Green's integrals is subdivided into the near-zone and far-zone integration sub-domains. The inversion is performed for the near zone using regional detailed gravity data. The far zone contributions to the gravity field quantities are estimated from an available global geopotential model using techniques for a spherical harmonic analysis of the gravity field. For computing the far-zone contributions by means of Green's integrals, truncation coefficients are applied. Different forms of truncation coefficients have been derived depending on a type of integrals in solving various geodetic boundary-value problems. In this study, we utilise Molodensky's truncation coefficients to Green's integrals for computing the far-zone contributions to the disturbing potential, the gravity disturbance, and the gravity anomaly.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F08%2F1103" target="_blank" >GA205/08/1103: Metody modelování zemského tíhového pole z heterogenních dat</a><br>

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Studia Geophysica et Geodaetica

ISSN

0039-3169

e-ISSN

—

Svazek periodika

55

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

17

Strana od-do

55-71

Kód UT WoS článku

000287330900004

EID výsledku v databázi Scopus

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