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

  • Rothacher, M.; Beutler, G.; Weber, R.: High-Frequency Earth Rotation Variations Based on Four Years of GPS Data. 1998 mehr… BibTeX
  • Tsoulis, D.V.: A combination method for computing terrain corrections. Physics and Chemistry of the Earth 23 (1), 1998, 53-58 mehr… BibTeX Volltext ( DOI )
  • Rothacher, M.; Beutler, G.: The role of GPS in the study of global change. Physics and Chemistry of The Earth 23 (9-10), 1998, 1029-1040 mehr… BibTeX Volltext ( DOI )
  • Schneider, M.; Schreiber, U.; Stedman, G. E.: Ring laser design. Science 280 (5364), 1998, 655 mehr… BibTeX Volltext ( DOI )
  • Rührnössl, H.; Brunner, F. K.; Rothacher, M.: Modellierung der troposphärischen Korrektur für Deformationsmessungen mit GPS im alpinen Raum. AVN - Allgemeine Vermessungs-Nachrichten 105 (1), 1998, 14-20 mehr… BibTeX
  • Beutler, G.; Weber, R.; Brockmann, E.; Rothacher, M.; Schaer, S.; Verdun, A.: The GPS as a Tool in Global Geodynamics. In: Teunissen, P.J.G.; Kleusberg, A. (Hrsg.): GPS for Geodesy. Springer Verlag (2. Aufl.), 1998, 569-598 mehr… BibTeX
  • Rothacher, M.; Springer, T.A.; Schaer, S.; Beutler, G.: Processing strategies for regional GPS networks. Advances in Positioning and Reference Frames, IAG Symposia, Springer, 1998 mehr… BibTeX
  • Rummel, R.: Rudolf Sigl - In memoriam. Journal of Geodesy 72 (6), 1998, 365-366 mehr… BibTeX Volltext ( DOI )
  • Anzenhofer, M.; Gruber, T.: Fully reprocessed ERS-1 altimeter data from 1992 to 1995: Feasibility of the detection of long term sea level change. Journal of Geophysical Research (Oceans) 103 (C4), 1998, 8089-8112 mehr… BibTeX Volltext ( DOI )
  • Meurers, B.; Pail, R.: Potential-field continuation between irregular surfaces - Remarks on the method by Xia et al. Geophysics 63 (1), 1998, 104-108 mehr… BibTeX Volltext ( DOI )
  • Rummel, R.: Rudolf Sigl - in memoriam. 1998 mehr… BibTeX Volltext (mediaTUM)
  • Rothacher, M.: The contribution of GPS measurements to Earth rotation studies. Proceedings of the Journées 1998 "Systèmes de Référence Spatio-Temporels", 1998 mehr… BibTeX Volltext (mediaTUM)
  • Rothacher, M.; Springer, T. A.; Schaer, S.; Beutler, G.; Ineichen, D.; Wild, U.; Wiget, A.; Boucher, C.; Botton, S.; Seeger, H.: 1997 Annual Report - CODE Analysis Center of the IGS. In: Mueller, I.; Gowey, K.; Neilan, R. (Hrsg.): IGS 1997 Annual Report, November 1997, IGS Central Bureau, Jet Propulsion Laboratory, California Ins. IGS Central Bureau, JPL, 1998, 73-87 mehr… BibTeX Volltext (mediaTUM)
  • Springer, T.A.; Beutler, G.; Rothacher, M.: A new solar radiation pressure model for the GPS satellites. Proceedings of the IGS 1998 Analysis Center Workshop, Darmstadt, February 9-11, 1998, ESA/ESOC, 1998 mehr… BibTeX Volltext (mediaTUM)
  • Rothacher, M.; Beutler, G.: Estimation of nutation terms using GPS. Proceedings of the 1998 IGS Analysis Center Workshop, Darmstadt, February 9-11, 1998, ESA/ESOC, 1998 mehr… BibTeX Volltext (mediaTUM)
  • Schaer, S.; Beutler, G.; Rothacher, M.: Mapping and predicting the ionosphere. Proceedings of the 1998 IGS Analysis Center Workshop, Darmstadt, February 9-11, 1998, ESA/ESOC, 1998 mehr… BibTeX Volltext (mediaTUM)
  • Schreiber, U.; Schneider, M.; Stedman, G.; Rowe, C.; King, T.; Cooper, S.; Wright, D.; Seeger, H.: Preliminary results from a large ringlaser gyroscope for fundamental physics and geophysics. Proceedings of the Symposium Gyro Technology, 1997 mehr… BibTeX
  • Rothacher, M.: The International GPS Service, Orbit, and Reference Frame. European Frequency and Time Forum (EFTF), Tutorial on Global Positioning System (GPS), Neuchâtel, Sw, 1997 mehr… BibTeX
  • Rothacher, M.; Springer, T.: Combination of Antenna Phase Center Variations. Proceedings of the IGS Analysis Center Workshop 1997, 1997 mehr… BibTeX
  • Reichhoff, B.; Müller, J.; Schneider, M.; Schreiber, U.; Egger, D.; Soffel, M.; Ruder, H.: Determination of Earth rotation (UTO-UTC and variation of latitude) by analyzing lunar laser ranging data. In: Charlot, P. (Hrsg.): IERS Technical Note. Central Bureau of IERS - Observatoire de Paris, 1997 mehr… BibTeX
  • Beutler, G.; Rothacher, M.: The role of GPS in the study of global change (Solicited Paper). 1997 mehr… BibTeX
  • Botton, S.; Rothacher, M.; Springer, T.; Beutler, G.: Reprocessing of about 15 months of global IGS data using improved orbit models. 1997 mehr… BibTeX
  • Rentsch, M.; Anzenhofer, M.; Gruber, T.; Neumayer, K.H.: Altimetric gravity anomalies based on Geosat and ERS-1 geodetic phase data. Annales Geophysicae 15, 1997 mehr… BibTeX
  • Mervart, L.; Rothacher, M.: Bernese 4.0 - an efficient tool for processing GPS monitoring deformation networks. 1997 mehr… BibTeX
  • Rothacher, M.; Schaer, S.; Wild, U.: Troposphere modelling and estimation techniques for baselines with small and large height differences. 1997 mehr… BibTeX