Tools used for aiding mesh generation especially for compound flooding studies.
- pyDEM: extract thalwegs from DEM tiles, see more details in RiverMeshTools/pyDEM
- RiverMapper: generate polylines based on thalwegs and DEM tiles to guide watershed river mesh generation, see more details in RiverMeshTools/RiverMapper
Note: These two components can be used independently. For instance, to extract a 1-D river network, only the first component is necessary. Furthermore, the second component accepts any reasonable representation of a 1-D river network, such as those derived from existing hydrological models, manually created, or extracted from digital elevation models (DEMs), without requiring strict adherence to the thalwegs.
Publicaton: Ye, F., Cui, L., Zhang, Y., Wang, Z., Moghimi, S., Myers, E., Seroka, G., Zundel, A., Mani, S. and Kelley, J.G., 2023. A parallel Python-based tool for meshing watershed rivers at continental scale. Environmental Modelling & Software, 166, p.105731.
The paper is accessible here: DOI, and if you don't have subscription to Environmental Modeling & Software, here is an unofficial version of the manuscript. Some of the functionalities described in the paper may have been upgraded.
Refer to this section of the SCHISM manual for the most up-to-date tutorial.