Team
1st Phase
1 May 2021 to 30 April 2022
Summary
This project is concerned with simulating runoff generation at very high resolution in hillslopes and catchments, aiming towards studying the links between the structural microscale features of such systems (microtopography, drainage networks, and others), the flow paths and dynamic flow connectivity during runoff, and the observable hydrological signatures (for example, hydrographs, water balances). We leverage SERGHEI-SWE’s technical capabilities (from fundamental robust numerics to high-performance and portability) to achieve this. Moreover, we will use the opportunity to improve technical and computational aspects of SERGHEI, expected to be of higher importance towards the end of the project.
Resources
Computing time granted by Forschungszentrum Jülich under Application-Nr. 22686:
2nd Phase
1 November 2022 to 31 October 2023
Summary
This project is concerned with simulating runoff generation at very high resolution in hillslopes and catchments, aiming towards studying the links between the structural microscale features of such systems, the dynamics flow paths and dynamic flow connectivity during runoff, and the observable hydrological signatures. We study how fully capturing the multiscale features provides added values to flash flood modelling, as well as soil loss assessments. We rely on SERGHEI (Simulation Environment for Geomorphology, Hydrodynamics and Ecohydrology in Integrated form) model, a modular, highly-scalabale, GPU-ready, performance portable solver. SERGHEI aims to resolve processes at small scales, while remaining applicable to large domains, allowing to tackle very high-resolution surface runoff simulations, thus enabling the virtual experiments which are the core of this project, exploring the effects of spatial heterogeneity, such as microtopography, infiltration heterogeneity, etc, harnessing high resolution DEMs and rainfall data.
Resources
Computing time granted by Forschungszentrum Jülich under Application-Nr. 26702: