TUFLOW Message 1278: Difference between revisions

'''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 elevationselevation inside the cell as the “pit inlet level”. Therefore, thean 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"If possible, optionit is normallyalso notsuggested necessaryto inreview anthe SGScell size of the model, ifso that the DEMmodel resolutiondoesn't issample finean elevation far away from the pit. enough