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Simulating Flood-Induced Soil and Sediment Transport with a Coupled HEC-RAS 2D and WASP Model

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Metadata Last Checked: August 02, 2025 | Last Modified: 2021-08-11
These datasets contain results of sediment and contaminant transport (arsenic) simulation for 100-year flood in Woodbridge watershed, NJ. The flood discharge is simulated by HEC-HMS model using 24-hours storm and runoff curve number method. HEC-RAS 2D is used to simulate flood with 48-hours duration. The External Coupler program links HEC-RAS 2D and WASP in an offline and one-way direction. The Coupler is developed in python. The source code, executable file, and users’ manual for the program are available in the External Coupler folder. Using hydrodynamic file generated by the External Coupler, WASP simulated sediment and contaminant transport in flood. This dataset is associated with the following publication: Shabani, A., S. Woznicki, M. Mehaffey, J. Butcher, T. Wool, and P. Whung. A coupled hydrodynamic (HEC-RAS 2D) and water quality model (WASP) for simulating flood-induced soil, sediment, and contaminant transport. Journal of Flood Risk Management. John Wiley & Sons, Inc., Hoboken, NJ, USA, 14(4): e12747, (2021).

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