Working Group

WG 3.1: Hydrologic signature in geodetic observations

Chair: Carla Braitenberg (University of Trieste, Italy)

Vice-Chair: Grace Carlson (University of California, Berkley, USA)


  • Define the physical mechanisms that generate hydrologic signals in geodetic observations;
  • Define best practices for forward modeling hydrologic effects that may be present in geodetic observations;
  • Identify spatiotemporal scales at which geodetic observation may be sensitive to different hydrologic processes;
  • Identify pitfalls to prevent the wrong identification of signals as for instance earthquake precursors or differentiating signals of man-made from natural fluid fluxes.

Program of Activities:

  • Organize a cycle of seminars to promote the exchange of ideas between hydrologists and geodesists;
  • Organize a workshop for geodesists studying non-hydrology related signals to convey best practices for removing these signals from their observations;
  • Publish a report detailing recommendations for isolating hydrologic signals in different geodetic datasets;
  • Contribute publications and to scientific conferences such as meetings of the American Geophysical Union (AGU) and European Geosciences Union (EGU).

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