Ingenieurinstitut für Astronomische und Physikalische Geodäsie

Mass change in the Earth System

- water storage, sea level, ice sheets, crust-mantle dynamics, and others -

We started a survey on user requirements for future satellite gravity missions and would like users to participate


Mass changes on and below the Earth surface, such as from water storage variations, groundwater use, glacier melt, sea level change, earthquakes, among many others, can be observed by satellite gravimetry. 

Since 2002, the GRACE and GRACE-FO satellite gravity missions have been observing changes in the Earth’s gravity field that can be converted to mass changes with an accuracy of 2 cm water equivalent at a spatial resolution of about 300km for monthly data. ESA and NASA are currently planning a double-pair satellite constellation MAGIC (envisaged time frame: 2028-2038), which promises an enhanced spatial and temporal resolution compared to GRACE/-FO. 

After that, e.g. 15 years into the future, the QSG4EMT (Quantum Space Gravimetry for monitoring Earth’s Mass Transport Processes) mission may provide even larger improvements in spatial and temporal resolution of mass change data, significantly expanding the potential range of applications. 

The purpose of this questionnaire is to compile user requirements for such novel mission concepts.

The survey will take approximately 15 minutes.

Das Ingenieurinstitut besteht aus:

Lehrstuhl für Astronomische und Physikalische Geodäsie

Univ.-Prof. Dr.techn. Mag.rer.nat. Roland Pail

Professur für Satellitengeodäsie

Univ.-Prof. Dr.phil.nat. Urs Hugentobler

aktuelle Publikationen

  • Meindl, M.; Dach, R.; Schaer, S.; Hugentobler, U.; Beutler, G.: Developing a multi-GNSS analysis software for scientific purposes. Proceedings of the 2nd International Colloquium on Scientific and Fundamental Aspects of the Galileo Programme, 2009tbd: pp? mehr… BibTeX Volltext (mediaTUM)
  • Gruber, T.: Evaluation of the EGM2008 gravity field by means of GPS-levelling and sea surface topography solutions. Bureau Gravimétrique International (BGI) / International Geoid Service (IGeS), 2009, mehr… BibTeX Volltext (mediaTUM)
  • Egger, D.: Numerische Integration von Satellitenbahnen. Institut für Astronomische und Physikalische Geodäsie, Forschungseinrichtung Satellitengeodäsie, 2009, mehr… BibTeX Volltext (mediaTUM)
  • Svehla, D.: ACES and future GNSS-based Earth observation and navigation. Institut für Astronomische und Physikalische Geodäsie, Forschungseinrichtung Satellitengeodäsie, 2009, mehr… BibTeX Volltext (mediaTUM)
  • Flury, J.; Gerlach, C.; Hirt, C.; Schirmer, U.: Heights in the Bavarian Alps: mutual validation of GPS, levelling, gravimetric and astrogeodetic quasigeoids. Geodetic Reference Frames, IAG Symposia, Springer, 2009 mehr… BibTeX Volltext ( DOI ) Volltext (mediaTUM)
  • Rothacher, M.; Thaller, D.; Steigenberger, P.; König, R.; Panafidina, N.: IERS Combination Research Centre at GeoForschungsZentrum Potsdam (GFZ). In: Dick, W. R.; Richter, B. (Hrsg.): IERS Annual Report 2007. Verlag des Bundesamts für Kartographie und Geodäsie, 2009, 147-152 mehr… BibTeX Volltext (mediaTUM)
  • Gebauer, A.; Kroner, C; Jahr, T.: Structural-geologic and lithosperic factors affecting deformations of the upper crust. Université de Polynésie Française, 2009, mehr… BibTeX
  • Schaber, Katrin; Bunge, Hans-Peter; Schuberth, Bernhard S. A.; Malservisi, R.; Horbach, André: Stability of the rotation axis in high-resolution mantle circulation models: Weak polar wander despite strong core heating. Geochemistry, Geophysics, Geosystems 10 (11), 2009 mehr… BibTeX Volltext ( DOI )
  • Gebauer, A.; Kroner, C.; Jahr, T.: The influence of topographic and lithologic features on horizontal deformations. Geophysical Journal International 177 (2), 2009, 568-602 mehr… BibTeX Volltext ( DOI )
  • Plattner, C.; Malservisi, R.; Govers, R.: On the plate boundary forces that drive and resist Baja California motion. Geology 37 (4), 2009, 359-362 mehr… BibTeX Volltext ( DOI )
  • Gravity field analysis from the satellite missions CHAMP and GOCE. iapg50283 (anderer Eintrag) mehr… BibTeX
  • Zur Kombination von VLBI und GNSS. iapg63578 (anderer Eintrag) mehr… BibTeX
  • Reprocessing of a global GPS network. iapg78448 (anderer Eintrag) mehr… BibTeX
  • The impact of topographic and geological features on deformations of the upper crust. iapg2079262 (anderer Eintrag) mehr… BibTeX
  • Ettl, M.: Entwicklung einer Methodenbibliothek zur genauen Positionsbestimmung beliebiger Objekte mit echtzeitnaher Bildverarbeitung. , 2008 mehr… BibTeX
  • Pai, R.; Hofmann-Wellenhof, B.: Die Neuberechnung des österreichischen Geoids. 2008 mehr… BibTeX
  • Franco-Anaya, R.; Carr, A. J.; Schreiber, K. U.: Qualification of fibre-optic gyroscopes for civil engineering applications. Proceedings of the 2008 Annual NZSEE (New Zealand Society for Earthquake Engineering) Technical Conference, 2008 mehr… BibTeX
  • Daras, I.: Determination of a gravimetric geoid model of Greece using the method of KTH. , 2008 mehr… BibTeX
  • Baumann, S.; Andreassen, L. M.; Winkler, S.: Mapping Little Ice Age glacier maxima in Jotunheimen, Norway, using aerial photography and Landsat imagery. Proceedings of the 5th EARSeL LISSIG Workshop on Remote Sensing of Snow and Glaciers, University of Bern, 2008 mehr… BibTeX
  • Hugentobler, U.; Meindl, M.; Beutler, G.; Bock, H.; Dach, R.; Jäggi, A.; Urschl, C.; Mervart, L.; Rothacher., M.; Schaer, S.; Brockmann, E.; Ineichen, D.; Wiget, A.; Wild, U.; Weber, G.; Habrich, H.; Boucher, C: CODE IGS Analysis Center Technical Report 2003/2004. In: IGS 2003-2004 Technical Reports. IGS Central Bureau, 2008 mehr… BibTeX
  • Hugentobler, U.; van der Marel, H.; Springer, T.: Identification and mitigation of GNSS errors. Position Paper, IGS 2006 Workshop Proceedings, ESA, 2008 mehr… BibTeX
  • Urschl, C.; Beutler, G.; Gurtner, W.; Hugentobler, U.; Schaer, S.: Validation of GNSS orbits using SLR observations. IGS 2006 Workshop Proceedings, ESA, 2008 mehr… BibTeX
  • Dach, R.; Schaer, S.; Springer, T.; Beutler, G.; Perosanz, F.; Hugentobler, U.: Multi-GNSS processing. Position paper, IGS 2008 Workshop, Miami Beach, IGS Central Bureau, 2008 mehr… BibTeX
  • Thaller, D.: Inter-technique combination based on homogeneous normal equation systems including station coordinates, Earth orientation and troposphere parameters. Deutsches GeoForschungsZentrum, 2008, mehr… BibTeX Volltext ( DOI )
  • Steigenberger, P.; Boehm, J.; Hugentobler, U.; Rothacher, M.; Fritsche, M.; Rülke, A.; Dietrich, R.: Impact of different modeling on long-time series of reprocessed troposphere zenith delays. 2008 mehr… BibTeX