Bessiere, H.

Bloomfield, J.P.

Brauns, B.

Cuba, D.

Hannah, D.M.

Heudorfer, B.

Jackson, C.

Marchant, B.

Schubert, G.

Thunholm, B.

Van Loon, A.F.

NERC Open Research Archive

© UKRI All rights reservedThe Groundwater Drought Initiative (GDI):Analysing and understanding groundwater drought across Europe©iStock.comB. Brauns, B.1, Cuba, D.2, Bloomfield, J.P.1, Hannah, D.M.3, Jackson, C.2, Marchant, B.P.2, Heudorfer, B.3, Van Loon, A.F.3, Bessière, H.4, Thunholm, B.5 , Schubert, G.61 British Geological Survey (BGS), Wallingford, UK, 2 BGS, Keyworth, UK, 3 University of Birmingham, UK, 4 BRGM - Bureau de Recherches Géologiques et Minières, France, 5 Geological Survey of Sweden, Sweden, 6 Geological Survey of Austria, Austria© UKRI All rights reservedOverview• Introduction to the GDI• Background to groundwater droughts• Methodological approach of the GDI• Expected outputs and how to get involved© UKRI All rights reservedGDIThe European Groundwater Drought Initiative is a three-year initiative started in April 2018 (lead by BGS and University of Birmingham)Aims:• Analyse and model groundwater level/groundwater drought status at the European scale (ideally from the 1960s to present)• Investigate the spatio-temporal characteristics and hydrogeological and catchment controls on significant recent episodes of drought• Undertake a series of case studies to understand the relationships and feedbacks between groundwater droughts and their societal impacts   • Develop and support a network of European researchers & stakeholders with an interest in regional- to continental-scale groundwater droughtsIntroduction of the GDI Aims© UKRI All rights reservedIn addition to our current supporting partner institutions, the GDI is supported by the European Drought Centre (EDC), the FRIEND Low Flows & Drought network, and by  IGRACIntroduction of the GDI Partner and supporting institutions© UKRI All rights reservedVan Loon AF. 2015. Hydrological drought explained. WIREs Water, 2, 359–392From Van Loon (2015), after Eltahir & Yeh, 1999 & Channon, 1987)Background Relationship between Meteorological, SW  & GW Droughts© UKRI All rights reservedGDIBackground  Features of Groundwater DroughtsVan Loon AF. 2015. Hydrological drought explained. WIREs Water, 2, 359–392Bloomfield et al. 2015. Regional analysis of groundwater droughts using hydrograph classification. HESS, 19, 4327-4344.Pooling, lagging & lengthening Geospatial distribution© UKRI All rights reservedGDIMethodological approach of the GDIWorkflowData input:• Up to ~100 sites/country• Long timeseries (min. 30 yrs)• Monthly data• Unconfined aquifers• Little anthropogenic influence© UKRI All rights reservedGDIMethodological approach of the GDIRaw data and regularisationRaw data Pre-processing & regularisation© UKRI All rights reservedGDIMethodological approach of the GDIEstimating SGI and cluster analysisSGI timeseries Clustering=> Cluster series as basis for extraction          of drought events and statistical analysis   (event frequency, duration,…)© UKRI All rights reserved• Development to continental-wide approach transferable to other geographical regions• Scripts and tools to visualise and analyse groundwater droughts • Understanding of transboundary groundwater level data in the European context• Insights into the impacts of future major groundwater droughts GDIExpected output of the GDI© UKRI All rights reserved• Give you access and support for use of scrips and tools to visualise and analyse groundwater droughts • Enable you to place your groundwater level data in a regional- to continental-scale context• Provide you insights into the impacts of future major groundwater droughts in your region• Enhance your ability to predict the timing and magnitude of major episodes of groundwater drought• Give you the opportunity to participate in (hopefully high impact) joint publications in the peer-reviewed literature• Give you access to the expertise of a growing cohort of international groundwater drought researchersGDIWhy should you get involved?Joining the GDI will:© UKRI All rights reservedwww.bgs.ac.uk/groundwaterDrought@GDI_EuropePlease come and discuss or contact any of the project team. You can also visit the project website or twitter-feed:Dr John Bloomfield – jpb@bgs.ac.ukDr Anne Van Loon – a.f.vanloon@bham.ac.ukProf David Hannah – d.m.Hannah@bham.ac.ukDr Christopher Jackson – crja@bgs.ac.ukDr Ben Marchant – benmarch@bgs.ac.ukDaniela Cuba – micu@bgs.ac.ukDr Benedikt Heudorfer – B.Heudorfer@bham.ac.ukDr Bentje Brauns (GDI Secretariat) –benaun@bgs.ac.ukCurrent status of data collectionGDIHow to get involved/ how to get more information© UKRI All rights reservedThank you for you attention!

The Groundwater Drought Initiative (GDI): Analysing and understanding groundwater drought across Europe

http://nora.nerc.ac.uk/id/eprint/524839/1/FRIENDS2018_NORA.pdf

The Groundwater Drought Initiative (GDI): Analysing and understanding groundwater drought across Europe

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