Welcome to the RAS Solution Forums HEC-RAS Help Fill terrain below an altitude

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #7494
    Zoran
    Participant

    Is it possible to fill a profile below a certain altitude with the Channel design/modification tool?

    Thank you

    #12562
    Anonymous
    Guest

    you could just copy the elevation into excel, do and if statement, and paste it back in?

    #12563
    Zoran
    Participant

    This is what I did finally.
    The problem is that this procedure takes a lot of time and it is easy to do a mistake…
    I am wondering if the tool “fixed sediments elevation” in the geometry editor could be a solution to my problem. I will try it asap.
    Anyway thank your for your support.

    #12564
    Zoran
    Participant

    So I investigated the possibilities that offers the “fixed sediments elevation” tool in the geometry editor, which seems to partially answer my question :
    – I managed to fill my profiles with sediments under a certain altitude by indicating the US XS and the slope that I needed.
    – I did not manage to use the sediment elevation for the XS elevations (the method does not change the profiles geometry, so when I export my interpolated XS in Ras Mapper I obtain the original elevations. I need to do this for my full 2D model…)

    Any idea how to fix this?

    Thank you,

    Zoran

    #12565
    Lonnie A
    Participant

    Zoran,
    Depending on what it is you are trying to do you might be able to export a WSE raster from Mapper and use it to update your base terrain file. You might be able to set known WSE on the sections you want to fill and then just run a model with very minimal flow for a few time steps. Then export the WSE surface and put it on top of the base surface.
    Lonnie

    #12566
    ckatsoulas
    Participant

    Zoran, Have a look at Krey’s post on terrain modification below, it provides some very helpful methods for doing what you are asking

Viewing 6 posts - 1 through 6 (of 6 total)
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