HS2.4.6

HS2.4 EDI
Managing both Extremes at once – Approaches for addressing Flood Protection and Drought Prevention
Convener: Nicole Rudolph-Mohr | Co-conveners: Benni Thiebes, Lea AugustinECSECS, Udo SatzingerECSECS

With global climate change the frequency and intensity of floods and droughts are increasing in many parts of the world. Large parts of Europe have witnessed successive drought summers since 2018 leading to all time low water levels in rivers and aquifers. On the contrary, devastating pluvial and fluvial floods caused record-breaking flood losses and fatalities, particularly in July 2021 in Belgium and Germany. Floods and droughts cover the entire hydrological spectrum with many similarities and links between the two types of extremes. Approaches, methods, tools and management strategies can be, in some way, applicable to both contradicting extremes. However, adaptation, extensions or further development is likely required, challenges will arise. As an example: It seems straightforward to compensate one extreme with another, e.g. to store the water resulting from heavy rain or flooding and to provide it with delay in dry periods. But flood events and droughts occur on an entirely different time scales and with different dynamics. Also, the different spatial scales of the events or the water quality aspect pose challenges which need to be addressed.
Nevertheless, coupling of flood risk reduction with drought management is one key to sustainable future water management. As a consequence, research on both ends of the spectrum of extreme water events is crucial.
This session aims to bring together scientists working on compensating one extreme with another. The session focusses explicitly on combining opposing hydrological extremes and their consequences at different temporal and spatial scales. We welcome submissions that present interdisciplinary approaches for understanding and managing both at the same time, scarce water resources but also flooding events. We welcome contributions focusing to the whole strategic and operative management processes of these extreme events including modelling techniques for the hydrological hazards but also their consequences, mitigation measures, ranging from technical solutions like storm water storage to an adaptive design of urban and rural areas or operative-working forecasting systems.
Submissions from early-career researchers are especially encouraged.