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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]]
|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
for the cell volume.
|message_desc=If the DEM's resolution is fine enough, SGS can preserve the flow path along the cells/faces without using any gully line. By default, a gully line applies a gradient along the faces based on the cell corners and
cell side Zpt values, and creates sloping cells using the ZC, ZU, ZV and ZH values. It dosedoes 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. If so, 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_3520|Message 3520]]
}}
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