Articles | Volume 14, issue 2
https://doi.org/10.5194/gmd-14-1037-2021
https://doi.org/10.5194/gmd-14-1037-2021
Model description paper
 | 
23 Feb 2021
Model description paper |  | 23 Feb 2021

The global water resources and use model WaterGAP v2.2d: model description and evaluation

Hannes Müller Schmied, Denise Cáceres, Stephanie Eisner, Martina Flörke, Claudia Herbert, Christoph Niemann, Thedini Asali Peiris, Eklavyya Popat, Felix Theodor Portmann, Robert Reinecke, Maike Schumacher, Somayeh Shadkam, Camelia-Eliza Telteu, Tim Trautmann, and Petra Döll

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Short summary
In a globalized world with large flows of virtual water between river basins and international responsibilities for the sustainable development of the Earth system and its inhabitants, quantitative estimates of water flows and storages and of water demand by humans are required. Global hydrological models such as WaterGAP are developed to provide this information. Here we present a thorough description, evaluation and application examples of the most recent model version, WaterGAP v2.2d.