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hydraulic length: stormcad

hi,

Can anyone tell me whether stormcad can calculate hydraulic length and slope of a catchment automatically? if so how?

because i tried calculating time of concentration for catchment areas but it asks hydraulic length and slope.

 

Parents Reply
  • I see what you're doing now. It looks like you're trying to use the Length and Velocity method for computing the Tc. The hydraulic length information is something that you would already have to know about your catchment in order to use this method. From what I have read "the hydraulic length is the length measured along the main watercourse, which is the central and largest watercourse of the catchment and the one conveying runoff to the outlet." (http://bit.ly/1lFYu0i)

    StormCAD, currently, doesn't have the ability to do this since it is related to catchment delineation as was described in the wiki attached to my above response.

    I hope that helps out.

    Mark

    Mark

    Answer Verified By: Scott Kampa 

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