Dam-break Simulation Results of the 10 Largest Dams in the State of Pernambuco - Brazil

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This repository contains hydrodynamic simulation results of 10 largest dams in Pernambuco - Brazil:

- Algodões
- Saco II
- Entremontes
- Chapeu
- Serrinha
- Jucazinho
- Lagoa do Carro
- Tapacura
- Goita
- Pirapama

The numbers associated with the folders are derived from SNISB classification.
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Definitions
C30 - Copernicus DEM with 30 m resolution
L5 - LiDAR DEM with 5 m resolution
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Methods
The model was run assuming a dam-break scenario following the breach hydrograph method presented in https://doi.org/10.1016/j.ijdrr.2024.104543.
We run a local-inertial 2D hydrodynamic model (HydroPol2D) to adequately capture the flood wave dynamics by using an inflow dam-breach hydrograph boundary condition at the exit of the dam.
Simulations were carried out with durations varying from 1 to 24 hours to allow correct flood propagation to downstream areas.
Land use and land cover (LULC) rasters were derived from Dynamic World database and Manning's roughness coefficients were estimated according to the classifications of each LULC type.
Manning's parameter estimates were estimated based on
https://doi.org/10.48550/arXiv.2308.16864
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Results
In summary, each folder contains the following results:
- MP4 video of the time-varying flood propagation
- Rasters of Maximum Depth
- Shapefiles of streams
- Hydrographs and stages at specific points of the domain
- Time-varying rasters of the flood depths
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If you have any questions, please contact me at [e-mail].