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For the local inertial model (1D river routing and 2D overland /floodplain routing) water depths and fluxes between cells, especially for cells with large subgrid elevation differences, may not be accurate enough. The use of a subgrid approach would improve accuracy of simulated water depths and fluxes between cells. A simple approach could be to build on the already implemented 1D floodplain schematization for local inertial river flow and to use a minimal water depth threshold for each 2D link (activation), or to build on approaches in literature like for example Volp et al. (2013) and Casulli (2019).
The text was updated successfully, but these errors were encountered:
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routing
Feature or improvement related to the routing (or horizontal component)
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Dec 5, 2022
For the local inertial model (1D river routing and 2D overland /floodplain routing) water depths and fluxes between cells, especially for cells with large subgrid elevation differences, may not be accurate enough. The use of a subgrid approach would improve accuracy of simulated water depths and fluxes between cells. A simple approach could be to build on the already implemented 1D floodplain schematization for local inertial river flow and to use a minimal water depth threshold for each 2D link (activation), or to build on approaches in literature like for example Volp et al. (2013) and Casulli (2019).
The text was updated successfully, but these errors were encountered: