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The project

During the 4D Dynamic Earth project, different sensitivity studies are performed to understand the applicability of current ground and satellite datasets available to study the dynamical behaviour of the solid Earth, in particular the complete mantle. The following datasets are studied in relation to the dynamic Earth:

  1.  Seismic (velocity anomalies, anisotropy, temperature, density)
  2.  Gravity (density, viscosity)
  3.  Magnetic data (depth sensitivity, conductivity)
  4.  GPS and InSAR(viscous responds, viscosity, temperature, composition)
  5.  Petrology (Composition, velocity->temperature, density)
  6.  (Dynamic) Topography (Elastic responds of the lithosphere)

These physical parameters are studied for the lower mantle and transition zone, as well as re-analysed together with a dynamic model for the lithosphere (WINTERC-G). This will result in to a roadmap towards a consistent whole-Earth mantle to incorporates ground and satellite data in a state-of-the-art modelling approach.

The project is funded by the European Space Agency

Parameters and observations studied in the 4D Dynamic earth project.


The project consists of ten Tasks subdivided into workpackages, more information can be found clicking in the corresponding image:


Task 1: Sensitivity analysis of seismic and gravity data
Task 2: Satellite gravity-rate data and 3D viscosity structure
Task 3: Electromagnetic induction and the Earth's conductivity
Task 4: Sensitivity analysis of petrological models and their rheological consequences
Task 5: Effect of mantle stress to the lithospheric model WINTERC-G
Task 6: Analyzing observed and modelled dynamic topography
Task 7: Global plate motion and its sensitivity to the 4D Earth model
Task 8: Application of the 4D Earth framework in hazard mapping
Task 9: Extended work packages
Task 10: Roadmap for Phase 2