Articles | Volume 17, issue 23
https://doi.org/10.5194/gmd-17-8817-2024
© Author(s) 2024. 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-17-8817-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
12 Dec 2024
Model description paper |
| 12 Dec 2024
| 12 Dec 2024
The global water resources and use model WaterGAP v2.2e: description and evaluation of modifications and new features
Hannes Müller Schmied
CORRESPONDING AUTHOR
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Senckenberg Leibniz Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
Tim Trautmann
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Sebastian Ackermann
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Denise Cáceres
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Martina Flörke
Chair of Engineering Hydrology and Water Resources Management, Ruhr University Bochum, Bochum, Germany
Helena Gerdener
Institute of Geodesy and Geoinformation, University of Bonn, Bonn, Germany
Ellen Kynast
Center for Environmental Systems Research, University of Kassel, Kassel, Germany
Thedini Asali Peiris
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Leonie Schiebener
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Maike Schumacher
Geodesy Group, Department of Sustainability and Planning, Aalborg University, Aalborg, Denmark
Petra Döll
Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany
Senckenberg Leibniz Biodiversity and Climate Research Centre (SBiK-F), Frankfurt am Main, Germany
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Saved (final revised paper)
Latest update: 20 Aug 2026
Short summary
Assessing water availability and water use at the global scale is challenging but essential for a range of purposes. We describe the newest version of the global hydrological model WaterGAP, which has been used for numerous water resource assessments since 1996. We show the effects of new model features, as well as model evaluations, against water abstraction statistics and observed streamflow and water storage anomalies. The publicly available model output for several variants is described.
Assessing water availability and water use at the global scale is challenging but essential for...
