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SRH-2D Monitor Lines

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Good morning,

Does anyone know how SRH-2D monitor lines work. I am wondering how they calculate the average water surface elevation? Is a straight average or flow weighted somehow?

Also how is the flowrate calculated? I find they never match flux calculated with an identical observation line.




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I spoke with Dr. Lai, the developer of SRH-2D, and he confirmed that the water surface elevation is a discharge weighted calculation.  In other words, the computed WSEL at each element is weighted based on the discharge computed at that element divided by the total discharge across the monitoring line.

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