GARFIELD: Geoid for Austria - Regional Gravity FIELD improved (2012-2016)

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The project GARFIELD is a current initiative for the generation of a new high-quality gravity field solution for the Austrian region. Former solutions still show inconsistencies compared to geoid heights from GPS/leveling campaigns. With new methodical developments, these deficits should be compensated.

The final aim of GARFIELD is the generation of a highly precise gravity field for deriving

  • geoid heights for a consistent height system as basis for GNSS/leveling,
  • deflections of the vertical for civil engineering projects,
  • gravity anomalies and disturbances for geophysical interpretations.

To achieve this goals, a proper combination of global and terrestrial data is sought. In tradition of former Austrian geoid solutions, the method of Least Squares Collocation (LSC) is chosen as baseline strategy. Alternatively, a Gauß-Markov model based on Radial Basis Functions will be implemented as complementary approach.

Acknowledgements

This project is funded by the Austrian Science Fund (FWF): Project number P 25222-N29.

References

Mayer-Gürr, T.; Pock, C.:
Benötigen wir eine neue Definition der Schwereanomalien?. - in: Geodätische Woche. Stuttgart am: 15.09.2015

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Impact of Geological Surface Density Information and Seismic 3D Density Models for High Precision Regional Geoid Computation. - International Union of Geodesy and Geophysics - General Assembly 2015. Prague, 28.06.2015

Rieser, D.:
GOCE gravity gradients for geoid and MOHO determination applying the Least Squares Collocation approach. - PhD Thesis, TU-Graz, 2015.

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Importance of Terrestrial Surface Density Information and Satellite-Aided Global Gravity Field Models for High Precision Regional Geoid Computation. - in: European Geosciences Union - General Assembly 2015. Vienna am: 14.04.2015

Pock, C.; Mayer-Gürr, T.; Kühtreiber, N.:
Consistent combination of sattellite and terrestrial gravity field observations in regional geoid modling - a case study for Austria. - Proceedings of: Gravity, Geoid and Height Systems (GGHS2012) IAG Symposium,  vol 141,  p. 151-156, Springer. doi: 10.1007/978-3-319-10837-7_19

Rieser, D.; Pock, C.; Mayer-Gürr, T.;:
GOCE gravity gradients for a new Austrian Geoid solution. - 5th International GOCE User Workshop 2014. Paris on the 27.11.2014

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Hochgenaue regionale Geoidbestimmung durch die Kombination von terrestrischen und Satellitendaten. - in: Geodätische Woche. Berlin am: 07.10.2014

Rieser,D.; Mayer-Gürr, T.;:
A Least Squares Collocation approach with GOCE gravity gradients for regional Moho-estimation. European Geosciences Union - General Assembly 2014. Vienna am: 02.05.2014

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Towards sub-centimeter geoid: Investigation of modeling requirements. - in: European Geosciences Union - General Assembly 2014. Vienna am: 28.04.2014

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Einfluss der verschiedenen Schwerefeldgrößen auf die Geoidbestimmung. - in: Geodätische Woche. Essen am: 08.10.2013

Rieser, D.; Mayer-Gürr, T.:
Least Squares Collocation with GOCE gravity gradients and its application to Moho-estimation in central Europe. - in: ESA Living Planet Symposium 2013. Edinburgh am: 10.09.2013

Pock, C.; Mayer-Gürr, T.; Rieser, D.; Kühtreiber, N.:
Contributions of different gravity field quantities to the geoid solution. - in: IAG Scientific Assembly 2013. Potsdam am: 02.09.2013

Rieser, D.; Pock, C.; Mayer-Gürr, T.; Kühtreiber, N.:
Geoid for Austria - Regional gravity FIELD improved (GARFIELD. - in: EGU General Assembly 2013. Vienna am: 08.04.2013

Pock, C.; Mayer-Gürr, T.; Kühtreiber, N.:
Improved regional geoid solution based on radial basis parametrization . - in: European Geosciences Union (EGU) - General Assembly 2013 . Vienna am: 08.04.2013

Pock, C.; Mayer-Gürr, T.; Kühtreiber, N.:
Consistent combination of satellite and terrestrial gravity field observations in regional geoid modeling. - in: International Symposium on Gravity, Geoid and Height Systems GGHS 2012. Venedig am: 11.10.2012


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Contact
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Christian Pock
Steyrergasse 30/III
8010 Graz
Austria
Tel: +43/316/873-6344
Fax: +43/316/873-6845
christian.pocknoSpam@tugraz.at

Torsten Mayer-Gürr
Steyrergasse 30/III
8010 Graz
Austria
Tel: +43 316 873-6359
Fax: +43 316 873-6845
mayer-guerrnoSpam@tugraz.at