ISIMIP3a reservoirs & dams input data

The Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) provides a framework for the collation of a consistent set of climate impact data across sectors and scales. It also provides a unique opportunity for considering interactions between climate change impacts across sectors through consistent scenarios.<br>The ISIMIP3a part of the third simulation round is dedicated to i) impact model evaluation and improvement and ii) detection and attribution of observed impacts according to the framework of IPCC AR5 Working Group II Chapter 18. To this end all simulations are driven by observed socio-economic information combined with either observed (factual) climate data or a detrended (counterfactual) version of the observed climate allowing for the generation of a “no climate change” baseline.<br>In order to offer a consistent and common source of reservoirs and associated dams for climate impact modelers, we joined the Global Reservoir and Dam Database (GRanD) v1.3 (Lehner et al., 2011a, 2011b), product of the Global Water System Project, with a set of dams provided by Dr. Jida Wang, from the Kansas State University (KSU). In total, the database includes 7330 dams, constructed/under construction from 286 to 2020, and a total global cumulative storage capacity of approximately 7000.5 km³. The dams from KSU (11) were constructed or showing some impoundment in Google Earth/Landsat imagery from 2016 to 2020, adding thus some value on the future projections of ISIMIP.