TUFLOW Message 1433
TUFLOW Message
WARNING 1433 - Reading XF file failed. Reverting to original file.
Alternate Message
ERROR 1433 - Upper Transition Elevation is lower than Lower Transition Elevation for an Arch Bridge channel.
Description
WARNING 1433: There was an issue in reading the binary (xf) version of the file.
ERROR 1433: For arch bridge channels (BArch), the start of the orifice flow transition needs to be lower than the end of the orifice transition. That is, the arch bridge channel will transition from using the arch bridge approach into orifice flow as the water level approaches the bridge obvert if the orifice flow flag is turned on (the default is turned off).
Suggestions
WARNING 1433: The original data is being re-read from the .csv file.
ERROR 1433: The lower transition elevation cannot be higher than the upper transition elevation for BArch channels.
For arch bridges modelled as 1D channels, the 1d_nwk attributes 'EntryC_or_WSa' = Lower transition (measured as depth below obvert) and 'ExitC_or_WSb' = Upper transition (measured as depth above obvert). If using the arch bridge editor in QGIS, the transition values can be found on the 'General Data' tab.
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