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TUFLOW Message 3519: Difference between revisions

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{{TUFLOW_Message
|tuflow_message=CHECK 3519: - Using MIN or GULLY option in SGS model.
|alt_msg=NA
|type=[[CHECK]]
|message_desc=If the DEM's resolution is fine enough, SGS can preserve the gullyflow path along the cells/faces without using any gully line. InBy such case usingdefault, a gully line mayapplies overestimatea thegradient width ofalong the flowfaces pathbased as it makeson the entire cell corners and face flat.
cell side Zpt values, and creates sloping cells using the ZC, ZU, ZV and ZH values. It does insure a continuous flow path, but the spatial accuracy may become lower comparing to the approach of sampling elevation directly from DEM. For more discussion, please see <u>[[Quadtree_and_Sub-Grid_Sampling_FAQ#Why_shouldn.27t_I_use_Z_Shape_gully.2Fmin_lines_with_SGS_models.3F|SGS FAQ page]]</u>.
|suggestions=Check if "SGS Sample Distance" and resolution of the DEM is fine enough to capture the gully line. withoutIf usingso, the topography modification MIN or GULLY option can be removed.
|discussion_page=* [[Talk:TUFLOW Message 3519|Discuss Message 3519]]
 
|link3=''
|link4=''
|prelink=[[TUFLOW_Message_3517|Message 3517]]
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
|nextlink=[[TUFLOW_Message_3522|Message 3522]]
}}
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