|
Re: Large island
Hi Bruce,
what about a sketch??
if the two channel have different length I would create different reaches, because in the xsec you define the reach lenght, that means distance to the next xsec. Doing so with only one reach you make always a mistake. For hydrauloc calcs the distance is important.
If using only long transects crossing the island, HEC will treat it as one section and calculate only one water level. Thats normal.
Using two reaches you may end up with two different independant water levels. Thats even better for calibrating
|