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Integrated simulations from deeper aquifers into the atmosphere over Europe

The goal is to bring fully integrated simulations, which close the terrestrial hydrologic and energy cycles from deeper aquifers across the land surface into the atmosphere, from the regional catchment scale to the continental scale. This will open up completely new avenues of hydrometeorologic research, because all states and fluxes of the terrestrial system can now be analyzed from internally consistent simulations. The tool we are developing and applying is TerrSysMP consisting of the variably saturated groundwater-surface water flow code ParFlow, the Community Land Model (CLM), and the weather prediction system COSMO. The different component models are coupled using OASIS3 or OASIS3-MCT. TerrSysMP can be applied on standard Linux clusters and state-of-the-art supercomputing environments provided by e.g., the Jülich Supercomputing Centre. Currently we are applying TerrSysMP over the European CORDEX domain at 11 and 3km spatial resolution also in fully coupled mode and perform comparison with in-situ and remotely sensed observations.

The figure shows the simulated changes or increments in total water storage in mm over the time period of the European heat wave in August 2003 using TerrSysMP. The simulations exhibit similar spatial patterns and large absolute increments, for example, over northern France that were also observed during this time period.


Questions on this project should be directed to HPSC TerrSys's Scientific Director.

An initiative of