the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The global water resources and use model WaterGAP v2.2e: description and evaluation of modifications and new features
Hannes Müller Schmied
Tim Trautmann
Sebastian Ackermann
Denise Cáceres
Martina Flörke
Helena Gerdener
Ellen Kynast
Thedini Asali Peiris
Leonie Schiebener
Maike Schumacher
Petra Döll
Abstract. Water – Global Assessment and Prognosis (WaterGAP) is a modelling approach for quantifying water resources and water use for all land areas of the Earth that has served science and society since 1996. In this paper, the refinements, new algorithms and new data of the most recent model version v2.2e are described, together with a thorough evaluation of simulated water use, streamflow and total water storage anomaly against observation data. WaterGAP v2.2e improves the handling of inland sinks and now excludes not only large but also small man-made reservoirs when simulating naturalized conditions. The reservoir and non-irrigation water use data were updated. In addition, the model was calibrated against an updated and extended dataset of streamflow observations at 1509 gauging stations. The model can now be started using pre-scribed water storages and other conditions, which facilitates data assimilation as well as near real-time monitoring and forecast simulations. For specific applications, the model can consider the output of a glacier model, approximate the effect of rising CO2 concentrations on evapotranspiration or calculate the water temperature in rivers. In the paper, the publicly available standard model output is described and caveats of the model version are provided alongside the description of the model setup in the ISIMIP3 framework.
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Hannes Müller Schmied et al.
Status: open (until 15 Jan 2024)
Hannes Müller Schmied et al.
Data sets
The global water resources and use model WaterGAP v2.2d - model output driven by gswp3-w5e5 and historical setup of direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.1PQV-6477
The global water resources and use model WaterGAP v2.2d - model output driven by gswp3-w5e5 and neglecting direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.0G5P-XSKK
The global water resources and use model WaterGAP v2.2e - model output driven by gswp3-w5e5 and historical setup of direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.0TNY-KJPG
The global water resources and use model WaterGAP v2.2e - model output driven by gswp3-w5e5 and neglecting direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.0PZW-2TVK
The global water resources and use model WaterGAP v2.2e - model output driven by 20crv3-w5e5 and historical setup of direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.0K1D-ZTH5
The global water resources and use model WaterGAP v2.2e - model output driven by 20crv3-w5e5 and neglecting direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.1C8E-77CV
The global water resources and use model WaterGAP v2.2e - model output driven by 20crv3-era5 and historical setup of direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.1TA7-3F5W
The global water resources and use model WaterGAP v2.2e - model output driven by 20crv3-era5 and neglecting direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.142E-65P$
The global water resources and use model WaterGAP v2.2e - model output driven by gswp3-era5 and historical setup of direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.1Q7K-2GWV
The global water resources and use model WaterGAP v2.2e - model output driven by gswp3-era5 and neglecting direct human impacts H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.25716/GUDE.0WKZ-74YD
Model code and software
WaterGAP v2.2e H. Müller Schmied, T. Trautmann, S. Ackermann, D. Cáceres, M. Flörke, H. Gerdener, E. Kynast, T. A. Peiris, L. Schiebener, M. Schumacher, and P. Döll https://doi.org/10.5281/ZENODO.10026943
Hannes Müller Schmied et al.
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