EGU23-5948, updated on 30 May 2023
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

The EDORA project: Towards a multi-sectoral drought risk assessment in Europe

Lauro Rossi1, Monika Bláhová2, Veit Blauhut3, Hans De Moel4, Davide Cotti5, Michael Hagenlocher5, Irene Kohn3, Anne Van Loon4, Willem Maetens6, Dario Masante6, Roberto Rudari1, Anne-Sophie Sabino Siemons5, Kerstin Stahl3, Ruth Stephan3, Kathrin Szillat3, Andrea Toreti6, Marthe Wens4, and Gustavo Naumann1
Lauro Rossi et al.
  • 1Cima Foundation, Savona, Italy (
  • 2Global Change Research Institute CAS, Brno, Czech Republic
  • 3Institute of Hydrology, University of Freiburg, Freiburg, Germany
  • 4Institute for Environmental Studies (IVM), VU University Amsterdam, The Netherlands
  • 5United Nations University, Institute for Environment and Human Security (UNU-EHS), UN Campus, Platz der Vereinten Nationen 1, 53113 Bonn, Germany
  • 6European Commission, Joint Research Centre (JRC), Ispra (VA), Italy

Drought affects almost every aspect of the environment and society. However, specific sectoral drought impact and risk assessments are often excluded from loss estimates because they are difficult to quantify and/or model. Effectively assessing and managing drought risk requires a multi-scale and multi-sectoral approach to understand the different dimensions of drought. 

The European Drought Observatory for Resilience and Adaptation (EDORA) project addresses the study of drought risk in a multi-system perspective in the European Union. The sectors and systems included in the assessment are agriculture, energy production, water supply, water transport and ecosystems. 

A proper collection and classification of past drought impact data is essential for risk assessment. To this end, we are developing a database of recorded impacts for each system, which can be fed by semi-automated media monitoring, official reports and manual data entries from potential observers. The collection and systematisation of sector specific impacts of drought aims at filling an important gap at the European scale.

Drought risk is assessed in two complementary ways. Risk drivers, root causes of risk and cascading effects are identified and mapped through system-specific impact chains informed by a systematic literature review and expert consultation (including validation workshops). An integrated, cross-system model unveils the interconnections and complexity of drought risk. Also, a modelling tool to quantitatively assess drought risk  was developed for different systems and different regions using machine learning techniques. This data-driven technique uncovers the vulnerability-specific interactions between hazard and impact under present and projected climate conditions. The outcomes of the risk assessments are collected into an atlas showing European multisectoral drought risk at subnational level.

How to cite: Rossi, L., Bláhová, M., Blauhut, V., De Moel, H., Cotti, D., Hagenlocher, M., Kohn, I., Van Loon, A., Maetens, W., Masante, D., Rudari, R., Sabino Siemons, A.-S., Stahl, K., Stephan, R., Szillat, K., Toreti, A., Wens, M., and Naumann, G.: The EDORA project: Towards a multi-sectoral drought risk assessment in Europe, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-5948,, 2023.