Standard step method: Difference between revisions

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'''The Standard Step Method''' (STM) is a computational technique utilized to estimate one dimensional surface water profiles in open channels with gradually varied flow under steady state conditions. It uses a combination of the energy, momentum, and continuity equations to determine water depth with a given a friction slope <math>(S_f)</math>, channel slope <math>(S_0)</math>, channel geometry, and also a given flow rate. In practice, this technique is widely used through the computer program [[HEC-RAS]], developed by the US Army Corps of Engineers Hydrologic Engineering Center (HEC). <ref></ref><ref>{{cite web|last=USACE|title=HEC-RAS Version 4.1 User's Manual|publisher=Hydrologic Engineering Center, Davis, CA}}</ref> <br /><br />