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

  • Hase, H.; Lauber, P.; Dassing, R.; Kilger, R.; Kronschnabl, G.; Schlüter, W.; Schwarz, W.: Twin-Telescope Wettzell (TTW). Proceedings of the 18th European VLBI for Geodesy and Astronomy Working Meeting, 12-13 April 2007, Vienna, 2007 mehr… BibTeX
  • Horwath, M.; Dietrich, R.; Barthelmes, F.; Förste, C.; Schwintzer, P.: CHAMP normal equation analyses for assessing sensitivities and parameter correlations. Proceedings of the Joint CHAMP/GRACE Science Meeting, GeoForschungsZentrum Potsdam, 2007 mehr… BibTeX
  • Stilla, U.; Hinz, S.; Hedman, K.; Wessel, B.: Road extraction from SAR imagery. In: Weng, Q. (Hrsg.): Remote Sensing of Impervious Surfaces (Taylor & Francis Series in Remote Sensing Applications). CRC Press, 2007 mehr… BibTeX
  • Urschl, C.; Beutler, G.; Gurtner, W.; Hugentobler, U.; Schaer, S.: Contribution of SLR tracking data to GNSS orbit determination. Advances in Space Research 39 (10), 2007, 1515-1523 mehr… BibTeX Volltext ( DOI )
  • Bock, H.; Jäggi, A.; Svehla, D.; Beutler, G.; Hugentobler, U.; Visser, P.: Precise orbit determination for the GOCE satellite using GPS. Advances in Space Research 39 (10), 2007, 1638-1647 mehr… BibTeX Volltext ( DOI )
  • Jäggi, A.; Hugentobler, U.; Bock, H.; Beutler, G.: Precise orbit determination for GRACE using undifferenced or doubly differenced GPS data. Advances in Space Research 39 (10), 2007, 1612-1619 mehr… BibTeX Volltext ( DOI )
  • Stedman, G. E.; Hurst, R. B.; Schreiber, K. U.: On the potential of large ring lasers. Optics Communications 279 (1), 2007, 124-129 mehr… BibTeX Volltext ( DOI )
  • Hedman, K.; Hinz, S.; Stilla, U.: Road extraction from SAR multi-aspect data supported by a statistical context-based fusion. Proceedings of IEEE-ISPRS Workshop URBAN 2007, 2007on CD mehr… BibTeX Volltext ( DOI )
  • Tesmer, V.; Meisel, B; Steigenberger, P.; Rothacher, M.: Atmospheric loading coefficients determined from homogeneously reprocessed long-term GPS and VLBI position time series. 2007 mehr… BibTeX
  • Dietrich, R.; Rothacher, M.; Ruelke, A.; Fritsche, M.; Steigenberger, P.: GPS-only terrestrial reference frame based on a global reprocessing. 2007 mehr… BibTeX
  • Steigenberger, P.; Tesmer, V.; MacMillan, D.; Thaller, D.; Rothacher, M.; Fritsche, M.; Rülke, A.; Dietrich, R.: Subdaily Earth rotation models estimated from GPS and VLBI data. 2007 mehr… BibTeX
  • Böckmann, S.; Artz, T.; König, R.; Müller, H.; Nothnagel, A.; Panafidina, N.; Steigenberger, P.; Thaller, D.; Tesmer, V.: Consistent VLBI, GPS and SLR time series of station positions and troposphere parameters. Koordinierungsbüro GEOTECHNOLOGIEN, 2007, mehr… BibTeX
  • Thaller, D.; Krügel, M.; Meisel, B.; Panafidina, N.; Steigenberger, P.: Time series from inter-technique combinations. Koordinierungsbüro GEOTECHNOLOGIEN, 2007, mehr… BibTeX
  • Stammer, D.; Gruber, T.; Ilk, K.H.; Köhl, A.; Romanova, V.; Rummel, R.: GOCE validation over land and ocean. Koordinierungsbüro GEOTECHNOLOGIEN, 2007, mehr… BibTeX
  • Frommknecht, B.; Meyer, U.; Schmidt, R.; Flechtner, F.: GRACE gravity field models using alternative L1B data. Koordinierungsbüro GEOTECHNOLOGIEN, 2007, mehr… BibTeX
  • Meyer, U.; Frommknecht, B.; Schmidt, R.; Flechtner, F.: Global gravity fields from simulated L1-products. Koordinierungsbüro GEOTECHNOLOGIEN, 2007, mehr… BibTeX
  • Klügel, T.; Schreiber, U.; Schlüter, W.; Velikoseltsev, A.: Advances in inertial Earth rotation measurements - new data from the Wettzell G ring laser. Proceedings of the "Journees Systemes de Reference Spatio-temporels 2007", Observatoire de Paris, 2007 mehr… BibTeX
  • Kilger, R.; Schlüter, W.: Fundamentalstation Wettzell - 20m radiotelescope. In: Behrend, D.; Baver, K. (Hrsg.): International VLBI Service for Geodesy and Astrometry 2006 Annual Report. , 2007, 114-117 mehr… BibTeX
  • Pritsch, B.; Schreiber, K. U.; Velikoseltsev, A.; Wells, J.-P. R.: Scale factor corrections in large ring lasers. Applied Physics Letters 91 (6), 2007, 061115 mehr… BibTeX Volltext ( DOI )
  • Igel, H.; Cochard, A.; Wassermann, J.; Flaws, A.; Schreiber, U.; Velikoseltsev, A.; Dinh, N. P.: Broad-band observations of earthquake-induced rotational ground motions. Geophysical Journal International 168 (1), 2007, 182-196 mehr… BibTeX Volltext ( DOI )
  • Fernández, L. I.; Schuh, H; Schmidt, M.; Seitz, F.: Effects of inter-annual water storage variations on polar motion. Geophysical Journal International 169 (1), 2007, 12-18 mehr… BibTeX Volltext ( DOI )
  • Schreiber, K. U.: High resolution Sagnac interferometry. In: Kurz, T.; Parlitz, U.; Kaatze, U. (Hrsg.): Oscillations, Waves, and Interactions; Sixty Years Drittes Physikalisches Institut; Festschrift. Universitätsverlag Göttingen, 2007, 279-310 mehr… BibTeX
  • Fengler, M. J.; Freeden, W.; Kohlhaas, A.; Michel, V.; Peters, T.: Wavelet modeling of regional and temporal variations of the Earths gravitational potential observed by GRACE. Journal of Geodesy 81 (1), 2007, 5-15 mehr… BibTeX Volltext ( DOI )
  • Krügel, M.; Thaller, D.; Tesmer, V.; Rothacher, M.; Angermann, D.; Schmid, R.: Tropospheric parameters: combination studies based on homogeneous VLBI and GPS data. Journal of Geodesy 81 (6-8), 2007, 515-527 mehr… BibTeX Volltext ( DOI )
  • Roemer, S.; Legrésy, B.; Horwath, M.; Dietrich, R.: Refined analysis of radar altimetry data applied to the region of the subglacial Lake Vostok/Antarctica. Remote Sensing of Environment 106 (3), 2007, 269-284 mehr… BibTeX Volltext ( DOI )