About: Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The aim of our work is to generate Earth's gravity field models from GPS positions of low Earth orbiters. Our inversion method is based on Newton's second law, which relates the observed acceleration of the satellite with forces acting on it. The observed acceleration is obtained as numerical second derivative of kinematic positions. Observation equations are formulated using the gradient of the spherical harmonic expansion of the geopotential. Other forces are either modelled (lunisolar perturbations, tides) or provided by onboard measurements (nongravitational perturbations). From this linear regression model the geopotential harmonic coefficients are obtained. The aim of our work is to generate Earth's gravity field models from GPS positions of low Earth orbiters. Our inversion method is based on Newton's second law, which relates the observed acceleration of the satellite with forces acting on it. The observed acceleration is obtained as numerical second derivative of kinematic positions. Observation equations are formulated using the gradient of the spherical harmonic expansion of the geopotential. Other forces are either modelled (lunisolar perturbations, tides) or provided by onboard measurements (nongravitational perturbations). From this linear regression model the geopotential harmonic coefficients are obtained. (en)
Title	Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites (en)
skos:prefLabel	Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites (en)
skos:notation	RIV/67985815:_____/14:00399036!RIV15-GA0-67985815
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0090), P(GA13-36843S), P(LH13071)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Bezděk, Aleš Sebera, Josef Klokočník, Jaroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	18589
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/14:00399036
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gravity field models; kinematic orbits; generalized least squares (en)
http://linked.open.../riv/klicoveSlovo	kinematic orbits gravity field models generalized least squares
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[060C073A5E13]
http://linked.open...i/riv/nazevZdroje	Advances in Space Research
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Models of the gravitational field of the Earth: their computation and evaluation NTIS - New Technologies for Information Society Studium gravitačního pole Země na základě dat družice GOCE
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	53
http://linked.open...iv/tvurceVysledku	Bezděk, Aleš Klokočník, Jaroslav Kostelecký, J. Sebera, Josef
http://linked.open...ain/vavai/riv/wos	000331498300005
issn	0273-1177
number of pages	18 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.asr.2013.11.031

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