Details
| Original language | English |
|---|---|
| Title of host publication | A Window on the Future of Geodesy |
| Subtitle of host publication | Proceedings of the International Association of Geodesy |
| Editors | Fernando Sansò |
| Publisher | Springer Verlag |
| Pages | 214-219 |
| Number of pages | 6 |
| ISBN (electronic) | 978-3-540-27432-2 |
| ISBN (print) | 9783540240556 |
| Publication status | Published - 2005 |
| Event | International Association of Geodesy, IAG 2003 - Sapporo, Japan Duration: 30 Jun 2003 → 11 Jul 2003 |
Publication series
| Name | International Association of Geodesy Symposia |
|---|---|
| Volume | 128 |
| ISSN (Print) | 0939-9585 |
| ISSN (electronic) | 2197-9359 |
Abstract
One promising method for the external validation and calibration of the upcoming GOCE satellite mission data is the use of ground gravity field data continued upward to satellite altitude. There is a unique situation for Hungary in this respect since surface gravity gradients are available at 20143 points over an approximately 48700 km2 area, measured by the classical Eötvös torsion balance. The concept of this contribution is to test the usability of these point gravity gradient observations for upward continuation to the GOCE satellite orbit in combination with different geopotential models and other gravity field information. The computations are based on the least squares collocation method and the direct numerical integration of the torsion balance data. For the latter method, the spectral combination technique and the classical integration kernels are considered. Furthermore, various other data sources, such as the Tzz gravity gradients based on the gravity and terrain data collected within the frame of the European Geoid Project, are utilized for comparisons. Besides the comparisons between the different satellite gravity gradient computations, an error analysis of the results is presented.
Keywords
- Eötvös’ torsion balance, GOCE, Upward continuation, Vertical gravity gradients
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computers in Earth Sciences
- Earth and Planetary Sciences(all)
- Geophysics
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A Window on the Future of Geodesy : Proceedings of the International Association of Geodesy. ed. / Fernando Sansò. Springer Verlag, 2005. p. 214-219 (International Association of Geodesy Symposia; Vol. 128).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Calibration/validation of GOCE data by terrestrial torsion balance observations
AU - Tóth, Gy
AU - Ádám, J.
AU - Földvary, L.
AU - Tziavos, I. N.
AU - Denker, H.
N1 - Publisher Copyright: © Springer-Verlag Berlin Heidelberg 2005. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - One promising method for the external validation and calibration of the upcoming GOCE satellite mission data is the use of ground gravity field data continued upward to satellite altitude. There is a unique situation for Hungary in this respect since surface gravity gradients are available at 20143 points over an approximately 48700 km2 area, measured by the classical Eötvös torsion balance. The concept of this contribution is to test the usability of these point gravity gradient observations for upward continuation to the GOCE satellite orbit in combination with different geopotential models and other gravity field information. The computations are based on the least squares collocation method and the direct numerical integration of the torsion balance data. For the latter method, the spectral combination technique and the classical integration kernels are considered. Furthermore, various other data sources, such as the Tzz gravity gradients based on the gravity and terrain data collected within the frame of the European Geoid Project, are utilized for comparisons. Besides the comparisons between the different satellite gravity gradient computations, an error analysis of the results is presented.
AB - One promising method for the external validation and calibration of the upcoming GOCE satellite mission data is the use of ground gravity field data continued upward to satellite altitude. There is a unique situation for Hungary in this respect since surface gravity gradients are available at 20143 points over an approximately 48700 km2 area, measured by the classical Eötvös torsion balance. The concept of this contribution is to test the usability of these point gravity gradient observations for upward continuation to the GOCE satellite orbit in combination with different geopotential models and other gravity field information. The computations are based on the least squares collocation method and the direct numerical integration of the torsion balance data. For the latter method, the spectral combination technique and the classical integration kernels are considered. Furthermore, various other data sources, such as the Tzz gravity gradients based on the gravity and terrain data collected within the frame of the European Geoid Project, are utilized for comparisons. Besides the comparisons between the different satellite gravity gradient computations, an error analysis of the results is presented.
KW - Eötvös’ torsion balance
KW - GOCE
KW - Upward continuation
KW - Vertical gravity gradients
UR - http://www.scopus.com/inward/record.url?scp=84895068565&partnerID=8YFLogxK
U2 - 10.1007/3-540-27432-4_37
DO - 10.1007/3-540-27432-4_37
M3 - Conference contribution
AN - SCOPUS:84895068565
SN - 9783540240556
T3 - International Association of Geodesy Symposia
SP - 214
EP - 219
BT - A Window on the Future of Geodesy
A2 - Sansò, Fernando
PB - Springer Verlag
T2 - International Association of Geodesy, IAG 2003
Y2 - 30 June 2003 through 11 July 2003
ER -