A national scale map that shows yearly LTA potential recharge values (mm/year) calculated over France. Values are calculated at daily time step and averaged over the period 1981 – 2010 The map presents the mean yearly potential groundwater recharge (refers to the part of the precipitation not stored in the soil, nor used by the vegetation) that infiltrates to potentially reach the aquifers calculated over the period 1981-2010 and at the spatial scale of 8 x 8 km grid cells and provided in mm/years

Geological/geochemical evidences and indicators for gas hydrate acquired from samples and cores. Data are represented as points. Data are collected by IPMA, Univ aveiro, Moscow State University and GEOMAR

Geological/geochemical evidences and indicators for gas hydrate acquired from samples and cores. Data are represented as points. Data are collected by Universidade de Vigo

Geomanifestations in the Roer-to-Rhine area of interest. Compiled and harmonised from datasets of WP3 partners Flemish Planning Bureau for the Environment and Spatial Development, Royal Belgian Institute of Natural Sciences – Geological Survey of Belgium, Flemish Institute for Technological Research and Netherlands Organisation for Applied Scientific Research.

Structural framework limits (with uncertainties) and units at pan-European scale. Compiled and harmonised by the Royal Belgian Institute of Natural Sciences – Geological Survey of Belgium.

Structural framework limits (with uncertainties) and units in the Roer-to-Rhine area of interest. Compiled and harmonised from datasets of WP3 partners Royal Belgian Institute of Natural Sciences – Geological Survey of Belgium, Netherlands Organisation for Applied Scientific Research, Flemish Institute for Technological Research and Geological Survey of North Rhine‐Westphalia.

Structural framework limits (with uncertainties) and units in the Pannonian Basin area of interest. Compiled and harmonised from datasets of WP4 partners Mining and Geological Survey of Hungary, Geological Survey of Federation of Bosnia and Herzegovina, Croatian Geological Survey, Geological Institute of Romania, Geological Survey of Serbia, State Geological Institute of Dionyz Stur, Geological Survey of Slovenia and State Information Geological Fund of Ukraine.

A dataset showing the locations of the boreholes where time series of recharge values (mm/year) are calculated using multiple recharge calculation tools. Clicking a borehole will lead to a figure showing the time series of recharge values if available. Models are driven by rainfall and potential evaporation and calibrated using either time series of groundwater levels or flow discharges at a gauging station or both depending on the tool. Please refer to tool used to identify if the recharge calculated is actual or potential recharge. The aim of applying multiple tools is to address the uncertainty in the calculated recharge. Values are best used for guidance only.

Long term average (LTA) Potential Groundwater Recharge (GWRpot) for the European domain at 1 km spatial resolution for the period 1981-2010. The LTA GWRpot data set i part of a series of gridded datasets established in the TACTIC project for estimating Potential Groundwater Recharge (GWRpot). The data available are AET, Effective precipitation (Peff=Precipitation-AET), Groundwater Recharge coefficient (Rcoef defined as the ratio: Peff / GWRpot ) The Potential Groundwater Recharge GWRpot = (Precipitation-AET)*Rcoef. The TACTIC series of gridded datasets for estimation of GWRpot included two versions of GWRpot. The current dataset is the GWRpot =Peff*Rcoef. The other is GWRpot_biacorr= Peff_biascorr*Rcoef, adjusted to other Peff estimates from seven national pilots in Europe. Urban areas are masked out and not represented in the gridded dataset. All units are mm/year for the period 1981-2010.