Hi. My case study flood area has a Y-shape, with two rivers joining in one channel downstream. I have two hydrograms for each upstream river and I wonder if I can use both as upstream boundary conditions in Hec-ras and how.
Muhammad Atiq Ur Rehman Tariq
Yes,
Add two upstreams connections and add both conditions separately. You don't need to add two conditions at a single point
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Brunella Bonaccorso
Dear Muhammad thanks for your answer. Does it work also in 2D flood modelling?
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Ferdous Ahmed
Yes, you can give multiple upstream hydrographs in most of the models including HEC-RAS, Mike11, etc.
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