Monday, April 20, 2009

SIAM Discharges

Written by Chris Goodell, P.E., D. WRE | WEST Consultants
Copyright © RASModel.com. 2009. All rights reserved.

How are the annual flow discharge and duration data prepared for HEC-RAS SIAM input? First, you have to come up with a representative flow duration curve. Then, you simply discretized the flow duration curve. You have to set up all of the flows as individual steady flow profiles in steady flow RAS first, then when you go to the SIAM flow editor, you simply add a duration and a temperature to each one. The durations are typically entered to represent a full year in SIAM, but they don’t have to be.

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