Welcome to the RAS Solution Forums HEC-RAS Help Discrepancy between Sediment Output and Hydraulic Output.

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    Sami Towsif Khan
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    Model Structure:- 1-D Unsteady Sediment Modeling of a 1800 ft reach with 110 cross-sections.
    For some cross-sections during some time stamps, there is discrepancy in water surface elevation and channel invert elevation between the sediment output and Detailed Output Table from the hydraulic computation. The sediment output UI is showing that the channel invert is lowering because of degradation but in the hydraulic model’s computation the channel invert is not changing/updating across time for a particular cross-section. Minimum Bed Change Before Updating Cross Section and Minimum Cross Section Change Before Hydraulic Update are both set to 0.02 feet.
    Here’s a screenshot of the Detailed Output Table and Sediment Output Timeseries graph:
    https://drive.google.com/file/d/1a80-gmeOLMCmfch95Bmz6qJRHjTA_QeK/view?usp=sharing

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