Joint Study Group

JSG 3.1: Model representation and geodetic signature of solid-Earth rheology in surface loading problems (joint with IAG Commissions 1 and 2)

Chair: Lambert Caron (Jet Propulsion Lab., California Institute of Technology, Pasadena, USA)

Vice-Chair: Rebekka Steffen (Lantmäteriet, Gävle, Sweden)


  • Reviewing the established approaches to model surface loading problems, for spectral, grid-based and element-based modeling;
  • Assessing the accuracy of and spread between existing modeling frameworks for standardized compressible and transient rheologies;
  • Establishing and documenting standard tests and results that enable the community to calibrate current and future efforts to model surface loading problems;
  • Encouraging open science and international collaboration for surface loading and geodetic science.

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