Explore2 dataset : A large transient multi-scenario multi-model ensemble of future streamflow and groundwater projections in France

A large transient multi-scenario and multi-model ensemble of future streamflows and groundwater projections in France developed in a national project named Explore2 was recently published. The main objective of Explore2 is to provide rich and spatially consistent information for the future evolution of hydrological (surface and groundwater) resources and extremes in France to support adaptation strategies. The Explore2 dataset was obtained using a nested multi-scenario multi-model approach to estimate future uncertainty and to access local climate and catchment scales: 3 greenhouse gases (GHG) emission scenarios, with a set of 17 combinations of Global Climate Models and Regional Climate Models (GCM-RCM) and 2 bias correction methods provide the meteorological forcings for 9 surface hydrology models and 4 groundwater hydrology models (1 to simulate groundwater recharge and 3 to simulate groundwater level). The associated datapaper, present the methodology underlying the dataset, the assessment of the hydrological models we applied against daily observations of discharge and groundwater level, the data availability and the ways of accessing the data and understanding the results (mainly through visualisation tools).