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Modeling the influence of climate on groundwater flow and heat regime in a water-stressed region – a case study of Brandenburg

Authors
/persons/resource/tsypin

Tsypin,  Mikhail
4.5 Basin Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/cacace

Cacace,  Mauro
4.5 Basin Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/leni

Scheck-Wenderoth,  Magdalena
4.5 Basin Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Citation

Tsypin, M., Cacace, M., Scheck-Wenderoth, M. (2023): Modeling the influence of climate on groundwater flow and heat regime in a water-stressed region – a case study of Brandenburg - Abstracts, GeoBerlin 2023 - Geosciences Beyond Boundaries - Research, Society, Future (Berlin, Germany 2023).
https://doi.org/10.48380/460z-0n70


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025308
Abstract
We explore the effects of a changing climate on groundwater dynamics based on thermo-hydraulic simulations to reconstruct the temperature and pressure below the State of Brandenburg between 1950 and 2010. In this time period, observations point to ~1°C surface temperature warming, large annual fluctuations in groundwater recharge, and periods of high groundwater abstraction volume — all leading to water stress conditions. Our input structural model integrates Permian to Cenozoic sedimentary units with essential geological features controlling the regional groundwater flow, including salt structures, permeable glacial valleys, and aquitard discontinuities. We use a grid-based hydrologic model to derive inflow and outflow rates across the top boundary of the subsurface model. Simulation outputs are verified against data from available observation wells.