Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 1 |
| Seiten (von - bis) | 1-11 |
| Seitenumfang | 11 |
| Fachzeitschrift | Advances in Geosciences |
| Jahrgang | 55 |
| Publikationsstatus | Veröffentlicht - 17 Dez. 2020 |
Abstract
In the framework of the COmbination Service for Time-variable Gravity fields (COST-G) gravity field solutions from different analysis centres are combined to provide a consolidated solution of improved quality and robustness to the user. As in many other satellite-related sciences, the correct application of background models plays a crucial role in gravity field determination. Therefore, we publish a set of data of various commonly used forces in orbit and gravity field modelling (Earth's gravity field, tides etc.) evaluated along a one day orbit arc of GRACE, together with auxiliary data to enable easy comparisons. The benchmark data is compiled with the GROOPS software by the Institute of Geodesy (IfG) at Graz University of Technology. It is intended to be used as a reference data set and provides the opportunity to test the implementation of these models at various institutions involved in orbit and gravity field determination from satellite tracking data. In view of the COST-G GRACE and GRACE Follow-On gravity field combinations, we document the outcome of the comparison of the background force models for the Bernese GNSS software from AIUB (Astronomical Institute, University of Bern), the EPOS software of the German Research Centre for Geosciences (GFZ), the GINS software, developed and maintained by the Groupe de Recherche de Géodésie Spatiale (GRGS), the GRACE-SIGMA software of the Leibniz University of Hannover (LUH) and the GRASP software also developed at LUH.We consider differences in the force modelling for GRACE (-FO) which are one order of magnitude smaller than the accelerometer noise of about 10-10 ms-2 to be negligible and formulate this as a benchmark for new analysis centres, which are interested to contribute to the COST-G initiative.
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Erdkunde und Planetologie (sonstige)
- Erdkunde und Planetologie (insg.)
- Astronomie und Planetologie
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in: Advances in Geosciences, Jahrgang 55, 1, 17.12.2020, S. 1-11.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Benchmark data for verifying background model implementations in orbit and gravity field determination software
AU - Lasser, Martin
AU - Meyer, Ulrich
AU - Jäggi, Adrian
AU - Mayer-Gürr, Torsten
AU - Kvas, Andreas
AU - Neumayer, Karl Hans
AU - Dahle, Christoph
AU - Flechtner, Frank
AU - Lemoine, Jean Michel
AU - Koch, Igor
AU - Weigelt, Matthias
AU - Flury, Jakob
N1 - Funding Information: Financial support. This research has been supported by the Swiss National Science Foundation (SNSF) (grant no. 200021_175942). Acknowledgments: he study was performed in the framework of COST-G and the corresponding international team that is receiv-ing support from the International Space Science Institute (ISSI) in Bern, Switzerland.
PY - 2020/12/17
Y1 - 2020/12/17
N2 - In the framework of the COmbination Service for Time-variable Gravity fields (COST-G) gravity field solutions from different analysis centres are combined to provide a consolidated solution of improved quality and robustness to the user. As in many other satellite-related sciences, the correct application of background models plays a crucial role in gravity field determination. Therefore, we publish a set of data of various commonly used forces in orbit and gravity field modelling (Earth's gravity field, tides etc.) evaluated along a one day orbit arc of GRACE, together with auxiliary data to enable easy comparisons. The benchmark data is compiled with the GROOPS software by the Institute of Geodesy (IfG) at Graz University of Technology. It is intended to be used as a reference data set and provides the opportunity to test the implementation of these models at various institutions involved in orbit and gravity field determination from satellite tracking data. In view of the COST-G GRACE and GRACE Follow-On gravity field combinations, we document the outcome of the comparison of the background force models for the Bernese GNSS software from AIUB (Astronomical Institute, University of Bern), the EPOS software of the German Research Centre for Geosciences (GFZ), the GINS software, developed and maintained by the Groupe de Recherche de Géodésie Spatiale (GRGS), the GRACE-SIGMA software of the Leibniz University of Hannover (LUH) and the GRASP software also developed at LUH.We consider differences in the force modelling for GRACE (-FO) which are one order of magnitude smaller than the accelerometer noise of about 10-10 ms-2 to be negligible and formulate this as a benchmark for new analysis centres, which are interested to contribute to the COST-G initiative.
AB - In the framework of the COmbination Service for Time-variable Gravity fields (COST-G) gravity field solutions from different analysis centres are combined to provide a consolidated solution of improved quality and robustness to the user. As in many other satellite-related sciences, the correct application of background models plays a crucial role in gravity field determination. Therefore, we publish a set of data of various commonly used forces in orbit and gravity field modelling (Earth's gravity field, tides etc.) evaluated along a one day orbit arc of GRACE, together with auxiliary data to enable easy comparisons. The benchmark data is compiled with the GROOPS software by the Institute of Geodesy (IfG) at Graz University of Technology. It is intended to be used as a reference data set and provides the opportunity to test the implementation of these models at various institutions involved in orbit and gravity field determination from satellite tracking data. In view of the COST-G GRACE and GRACE Follow-On gravity field combinations, we document the outcome of the comparison of the background force models for the Bernese GNSS software from AIUB (Astronomical Institute, University of Bern), the EPOS software of the German Research Centre for Geosciences (GFZ), the GINS software, developed and maintained by the Groupe de Recherche de Géodésie Spatiale (GRGS), the GRACE-SIGMA software of the Leibniz University of Hannover (LUH) and the GRASP software also developed at LUH.We consider differences in the force modelling for GRACE (-FO) which are one order of magnitude smaller than the accelerometer noise of about 10-10 ms-2 to be negligible and formulate this as a benchmark for new analysis centres, which are interested to contribute to the COST-G initiative.
UR - http://www.scopus.com/inward/record.url?scp=85097950829&partnerID=8YFLogxK
U2 - 10.5194/adgeo-55-1-2020
DO - 10.5194/adgeo-55-1-2020
M3 - Article
AN - SCOPUS:85097950829
VL - 55
SP - 1
EP - 11
JO - Advances in Geosciences
JF - Advances in Geosciences
SN - 1680-7340
M1 - 1
ER -