The first phase of the Rur Stress Test has been completed with the publication of three baseline reports: Scoping and System Understanding, Analysis Screening and Stakeholder Interviews. Together, these reports provide a consolidated picture of how the Rur catchment functions today and what is needed to assess its resilience under extreme hydrological conditions.
Covering 2.338 square kilometers across Germany, Belgium and the Netherlands, the Rur basin plays a crucial role in regional water availability, flood protection and ecological health. The Phase 1 findings include:
A detailed system description
The study provides an integrated overview of hydrology, hydrogeology, land use, water infrastructure, and climate trends across the whole basin. It highlights contrasting upstream to downstream characteristics, the importance of reservoirs for water supply and flood control, and the increasing pressure from climate-driven extremes.
Stakeholder perspectives across the region
Interviews with municipalities, water associations, authorities, and cross border partners reveal a shared concern about flood risk especially in light of the 2021 event. Stakeholders underline the need for improved monitoring, data and knowledge exchange between regions and coordinated forecasting endeavors and disaster management. While drought risks are perceived as less urgent thanks to existing reservoirs, stakeholders recognize the importance of adapting reservoir strategies and exploring new retention options to possible future climate scenarios.
A basin wide inventory of available models
For the first time, a complete overview of hydrological, hydraulic, reservoir operation, forecasting and related models and tools has been compiled for the Rur basin. This inventory highlights strengths, gaps and opportunities to extend or couple models for transboundary, catchment scale analyses.
Approach for the stress test analysis
The reports outline how extreme scenarios (beyond HQ100 up to HQ10.000) will be generated using a sophisticated weather generator, hydrological models, as well as rapid assessment of hydraulic modelling. In the course of the stress test study, system limits will be quantified under various stress scenarios. Subsequently, structural and operational measures will be explored to evaluate what improvements may be possible.
Phase 1 provides the foundation for the next stages of the Rur Stress Test which will evaluate extreme flood (and drought) scenarios and support long term planning for a safer and more resilient basin.
Download the reports here.
