TUFLOW Message 1278
TUFLOW Message
ERROR 1278 - Pit <pit ID> inlet level is below lowest channel/pipe bed.
Pit Entry Level = <value>
Lowest Channel/Pipe Invert = <value>
Alternate Message
WARNING 1278 - Pit <pit ID> inlet level is below lowest channel/pipe bed.
Description
The inlet level for the pit below the lowest connect channel / culvert.
Suggestions
Check inputs and ensure that invert levels are being correctly specified.
SGS model: Users may receive this error after converting a working non-SGS model to an SGS model. In a non-SGS model, the cell elevations are sampled at the cell centres, while an SGS model samples DEM elevations inside the cells based on the SGS sample distance and use the lowest elevations inside the cell as the “pit inlet level”. Therefore, the SGS model might picked up an elevation lower than the pipe invert level. In such case, the "US_Invert" attribute of the 1d_nwk GIS layer can be used to manually specify the ground elevation of the pit. "SXL" option is normally not necessary in an SGS model if the DEM resolution is fine enough
If possible, it is suggested to review the cell size of the model, so that the model doesn't sample an elevation too far away from the pit. Alternatively,
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