We are pleased to announce that Stefan Kollet, professor at the Forschungszentrum Jülich, will give the SFB 1313 "Pretty Porous Science Lecture" #42. His talk will be on "Concepts and Results of terrestrial modeling over the European continent using the Terrestrial Systems Modeling Platform, TSMP".
Date: Thursday, 29 June 2023
Time: 4:00 pm CET
Speaker: Prof. Stefan Kollet, Forschungszentrum Jülich
Lecture title: "Concepts and Results of terrestrial modeling over the European continent using the Terrestrial Systems Modeling Platform, TSMP"
Place: Multi Media Lab (MML), U1.003, Pfaffenwaldring 61, 70569 Stuttgart, Campus Vaihingen.
If you are interested in participating in the lecture, please contact firstname.lastname@example.org
Groundwater constitutes an important component of the terrestrial water, energy and nutrient cycle and is intrinsically connected to the land surface and atmosphere via processes related to e.g. groundwater recharge, capillary rise and root water uptake, and evapotranspiration and precipitation. Global change including human water use interacts with the terrestrial cycles leading to two-waylocal and non-local feedbacks in the terrestrial system across various space and time scales. Arguably, characterization of these feedbacks with measurements alone is not possible, because of scarce and often inconsistent observations, which are dispersed between many different national and international research and governmental institutions. Here, models may be valuable auxiliary tools to close information gaps in measurements in space and time. We make an attempt to construct a physically consistent terrestrial model including groundwater over continental Europe applying the Terrestrial Systems Modeling Platform (TSMP). In TSMP, groundwater-to-atmosphere closure of the coupled water and energy balances results in a physically consistent, dynamic equilibrium of groundwater dynamics with the land surface and atmospheric forcings based on the current technical and scientific state of the art. Results from simulation studies show that while the model simplifies the hydrogeologic complexity and may not agree with point measurements to an arbitrary accuracy, bulk mass fluxes and dynamics are well-reproduced. We discuss the value and limits of the model in constructing a terrestrial climatology to interrogate e.g. past water scarcity events over Europe, and the effect of groundwater memory on the land surface processes at the interannual time scales. In addition, the model is used in various experimental, quasi-operational setups to provide water availability assessments from the weather to the seasonal time scale.