Articles | Volume 19, issue 7
https://doi.org/10.5194/gmd-19-2799-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-2799-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
13 Apr 2026
Model description paper |
| 13 Apr 2026
| 13 Apr 2026
High-performance coupled surface-subsurface flow simulation with SERGHEI-SWE-RE
Na Zheng
College of Civil Engineering, Tongji University, Shanghai, China
College of Civil Engineering, Tongji University, Shanghai, China
Shanghai Key Laboratory of Urban Regeneration and Spatial Optimization Technology, Shanghai, China
Gregor Rickert
Institute of Geoecology, Technische Universität Braunschweig, Brunswick, Germany
Mario Morales-Hernández
Fluid Mechanics, I3A, Universidad de Zaragoza, Zaragoza, Spain
Ilhan Özgen-Xian
Institute of Geoecology, Technische Universität Braunschweig, Brunswick, Germany
Leichtweiß-Institute for Hydraulic Engineering and Water Resources, Technische Universität Braunschweig, Brunswick, Germany
Daniel Caviedes-Voullième
Simulation and Data Lab Terrestrial Systems, Jülich Supercomputing Centre, Forschungszentrum Jülich, Jülich, Germany
Institute of Bio- and Geosciences Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
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Short summary
This study introduces a computer model that simulates water flow both on the land surface and underground, and their interaction. The model can run efficiently on many kinds of computers, and its design lets each part update at its own pace to save time. In the tests performed, the model's results matched those from well-known tools in the field. Overall, the model offers a fast, flexible, and scalable way to study combined surface and groundwater behavior.
This study introduces a computer model that simulates water flow both on the land surface and...
