Inundation Model J2000-Flood
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Fig.: Schematic concept of a J2000 model (left) with wetland extension (right) | Fig.: Schematic concept of a J2000 model (left) with wetland extension (right) | ||
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==Application in the Upper Zambezi== | ==Application in the Upper Zambezi== | ||
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[http://www.geoinf.uni-jena.de/~ra53mac/Poster_EGU_Meinhardt_et_Al_landscape.pdf Meinhardt, M., Kralisch, S., Fink, M., Fleischer, M., Zimba, H., Butchart-Kuhlmann, D., Phiri, W., Chabala, A., Trautmann, T., Helmschrot, J., & Nyambe, I. (2016). Process-based distributed hydrological modelling of annual floods in the Upper Zambezi using the Desert Flood Index. Poster at European Geosciences Union General Assembly (EGU), 17 - 22 April 2016, Vienna.] | [http://www.geoinf.uni-jena.de/~ra53mac/Poster_EGU_Meinhardt_et_Al_landscape.pdf Meinhardt, M., Kralisch, S., Fink, M., Fleischer, M., Zimba, H., Butchart-Kuhlmann, D., Phiri, W., Chabala, A., Trautmann, T., Helmschrot, J., & Nyambe, I. (2016). Process-based distributed hydrological modelling of annual floods in the Upper Zambezi using the Desert Flood Index. Poster at European Geosciences Union General Assembly (EGU), 17 - 22 April 2016, Vienna.] | ||
[http://www.youtube.com/watch?v=rQoQlo4WDhI&t=6s Example video of HRU flooding] | [http://www.youtube.com/watch?v=rQoQlo4WDhI&t=6s Example video of HRU flooding] | ||
Revision as of 11:05, 8 February 2017
Please note: UNDER CONSTRUCTION!
A floodplain simulation extension, characterized as a conceptual and easily transferable approach that is simultaneously not overly data and resource intensive, as well as easily parameterizable, was developed and integrated into the modelling process. This extension was developed with the goal of simulating wetland inundation within the model. Due to the data scarcity typical of remote catchments, the extension's parameters (HRU elevation and river width) could be obtained from remote sensing data only.
On an iterative basis the water height in each river segment is compared to the elevation of its neighboring HRU. In case flooding occurs, the HRU floods its topological connected model entities, until the flood level is too low to spread any further. Technically the distributed water volume is stored in the exceeded depression storage, which interacts with soil and atmosphere.
Fig.: Schematic concept of a J2000 model (left) with wetland extension (right)
