Welcome to the RAS Solution Forums HEC-RAS Help Extraction of WSE over a line (2D model)

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  • #7348
    Anonymous
    Guest

    Another basic question… If I want to extract from the results (via Ras-Map) of a pure 2d Model, e.g. the WSE over the terrain along a river cross section, can I draw a simple profile line like a 1D cross section, and than plot the max WSE over this profile line?

    #12347
    Anonymous
    Guest

    Yup.

    You can even move the slider for your mapping output interval and watch the WSEL move up and down as the time series simulates

    #12348
    Anonymous
    Guest

    Thanks! Now I have, if I may, some further questions… The WSE is computed for every cell faces, and so what ras-map does is to interpolate these results, I supposed on the distance weight, in order to produce a WSE (or depth) map. Is it correct?
    Furthermore, why if I export the map as a raster I can’t export the exact map I see in ras mapper, but just a raster with a really worst resolution?

    Thanks in advance…

    #12349
    Anonymous
    Guest

    From a visual standpoint, you have the option on how you want to chose how water visually displays across cell transitions. Its under the options in RAS mapper where you can chose, for example “sloping” or exclude showing depths less than a certain value.

    As far as how RAS shows a value of depth or WSEL across a varying range of cells, that is something that is best read in the 2D users manual. Just to a search and find for the topic. Quick read but important to understand.

    #12350
    Anonymous
    Guest

    Thank you very much, it was helpfull! Now I understand that the visualization mode (sloping, horizontal…) will also affect the result of the WSE extracted over a line…

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