On Modelling the Regional Distortions of the European Gravimetric Geoid EGG97 in Romania

Robert Tenzer; I. Prutkin; R. Klees; T. Rus; N. Avramiuc

doi:10.1007/978-3-642-10634-7_46

On Modelling the Regional Distortions of the European Gravimetric Geoid EGG97 in Romania

Robert Tenzer, I. Prutkin, R. Klees, T. Rus, N. Avramiuc

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

We analyze and model the regional distortions of the European Gravimetric Geoid 1997 (EGG97) in Romania using GPS-levelling data. A comparison of the EGG97 gravimetric quasi-geoid with the GPS-levelling data indicates the presence of significant regional distortions in particular areas along the border of the country. To model the regional distortions, we apply two methods: (i) the recently proposed innovation function approach by Prutkin and Klees (J. Geod. 82(3), 147-156, 2007), which is based on a mathematical formulation of the differences between gravimetric quasi-geoid and GPS-levelling data in terms of a Cauchy boundary-value problem for the Laplace equation. (ii) the conventional approach of a low-degree polynomial correction surface. The results reveal that the innovation function approach gives more options to model a more complex trend of the regional gravimetric quasi-geoid distortions than the correction surface approach.

Original language	English
Title of host publication	Gravity, Geoid and Earth Observation - IAG Commission 2
Subtitle of host publication	Gravity Field
Pages	349-354
Number of pages	6
Volume	135
DOIs	https://doi.org/10.1007/978-3-642-10634-7_46
Publication status	Published - 1 Dec 2010
Externally published	Yes
Event	IAG International Symposium on "Gravity, Geoid and Earth Observation 2008" - Chania, Crete, Germany Duration: 23 Jun 2008 → 27 Jun 2008

Conference

Conference	IAG International Symposium on "Gravity, Geoid and Earth Observation 2008"
Country/Territory	Germany
City	Chania, Crete
Period	23/06/08 → 27/06/08

Keywords

GPS-levelling
Gravimetric quasi-geoid
Regional distortions

ASJC Scopus subject areas

Computers in Earth Sciences
Geophysics

More information

10.1007/978-3-642-10634-7_46

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abstract = "We analyze and model the regional distortions of the European Gravimetric Geoid 1997 (EGG97) in Romania using GPS-levelling data. A comparison of the EGG97 gravimetric quasi-geoid with the GPS-levelling data indicates the presence of significant regional distortions in particular areas along the border of the country. To model the regional distortions, we apply two methods: (i) the recently proposed innovation function approach by Prutkin and Klees (J. Geod. 82(3), 147-156, 2007), which is based on a mathematical formulation of the differences between gravimetric quasi-geoid and GPS-levelling data in terms of a Cauchy boundary-value problem for the Laplace equation. (ii) the conventional approach of a low-degree polynomial correction surface. The results reveal that the innovation function approach gives more options to model a more complex trend of the regional gravimetric quasi-geoid distortions than the correction surface approach.",

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Tenzer, R, Prutkin, I, Klees, R, Rus, T & Avramiuc, N 2010, On Modelling the Regional Distortions of the European Gravimetric Geoid EGG97 in Romania. in Gravity, Geoid and Earth Observation - IAG Commission 2: Gravity Field. vol. 135, pp. 349-354, IAG International Symposium on "Gravity, Geoid and Earth Observation 2008", Chania, Crete, Germany, 23/06/08. https://doi.org/10.1007/978-3-642-10634-7_46

On Modelling the Regional Distortions of the European Gravimetric Geoid EGG97 in Romania. / Tenzer, Robert; Prutkin, I.; Klees, R. et al.
Gravity, Geoid and Earth Observation - IAG Commission 2: Gravity Field. Vol. 135 2010. p. 349-354.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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On Modelling the Regional Distortions of the European Gravimetric Geoid EGG97 in Romania

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