TUFLOW Message 3519: Difference between revisions
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|tuflow_message=CHECK 3519: Using MIN or GULLY option in SGS model.
|alt_msg=NA
|type=[[CHECK]] applies a gradient along the face based on the cell corners and
cell side Zpt values and for thick lines uses the ZC, ZU, ZV and ZH values to apply a sloping cell area
|message_desc=If the DEM's resolution is fine enough, SGS can preserve the gully along the cells without using any gully line. In such case using a gully line may overestimate the width of the flow path as it makes the entire cell and face flat.▼
for the cell volume.
▲|message_desc=If the DEM's resolution is fine enough, SGS can preserve the
cell side Zpt values, and creates sloping cells using the ZC, ZU, ZV and ZH values. It dose insure a continuous flow path, but the spatial accuracy may become lower comparing to the approach of sampling elevation directly from DEM.
|suggestions=Check if "SGS Sample Distance" and resolution of the DEM is fine enough to capture the gully line. If so, the topography modification MIN or GULLY option can be removed.
|discussion_page=* [[Talk:TUFLOW Message 3519|Discuss Message 3519]]
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