Articles | Volume 18, issue 5
https://doi.org/10.5194/gmd-18-1463-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-18-1463-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
10 Mar 2025
Model description paper |
| 10 Mar 2025
| 10 Mar 2025
The Water Table Model (WTM) (v2.0.1): coupled groundwater and dynamic lake modelling
Department of Earth and Environmental Sciences, University of Illinois Chicago, Chicago, IL, USA
Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA
Lamont–Doherty Earth Observatory, Columbia University, New York, NY, USA
Andrew D. Wickert
Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA
St. Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN, USA
Sektion 4.6: Geomorphologie, GFZ Helmholtz-Zentrum für Geoforschung, Potsdam, Germany
Richard Barnes
National Energy Research Scientific Computing Center (NERSC), Lawrence Berkeley National Laboratory, Berkeley, CA, USA
Jacqueline Austermann
Lamont–Doherty Earth Observatory, Columbia University, New York, NY, USA
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Short summary
We present the Water Table Model (WTM), a new model for simulating groundwater and lake levels at continental scales over millennia. The WTM enables long-term evaluations of water-table changes. As a proof of concept, we simulate the North American water table for the present and the Last Glacial Maximum (LGM), showing that North America held more groundwater and lake water during the LGM than it does today – enough to lower sea levels by 14.98 cm. The open-source code is available on GitHub.
We present the Water Table Model (WTM), a new model for simulating groundwater and lake levels...
