TUFLOW Output Discussion: Difference between revisions
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→How should below ground water surface elevation (WSE) in wet SGS cells be interpreted or presented? |
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Below ground WSE in wet SGS cells is a known output behaviour in SGS enabled models and does not indicate an error in the hydraulic solution.
This occurs because TUFLOW reports water level assuming water fills from the lowest part of the SGS cell during output. As a result, cells may be wet while the reported
This behaviour commonly occurs in the following situations:
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* Partially wet cells along channel banks may contain water that does not reach the cell centre elevation.
* In this case, compare the standard
'''Shallow sheet flow from rainfall or side inflow'''
Cells may be wet but still report
'''Presentation and reporting considerations'''
* A presentation method is to post process results by adding the
* This approach can improve the visual representation of shallow flooding in sheet flow areas but may produce unrealistic water levels in fully wet or partially wet cells.
* Conditional IF logic may be required to
== Why do the high-resolution (HR) mapped results have a significantly smaller extent than the standard (non-HR) grid outputs for a sub-grid-scale (SGS) direct rainfall HPC model? ==
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