River Diagnostics

The diagnostics are helpful to resolve issues within your 1D simulations.

Flood Modeller details possible issues within the error messages to aid you. These are provided both in the exy (seen directly at runtime) and the diagnostics file (zzd).

Be aware that the exy sometimes needs to use a more generic and/or truncated version of the error message in the zzd, and therefore it is always recommended you check the full diagnostics to gain as much detail as possible.

Model instability is often a cause of failed simulations, and the 1D River Model Health Checker may be useful to identify areas where there are problems.

It may also be necessary to consider Adjusting advanced parameters to improve 1D model stability if all other options to resolve instability have not resolved the issue.