Message 10123

TUFLOW FV
Available since version: 2026.2.0
WARNING 10123 - Elevation less than -9999. encountered at cell <2d_cell_id>

Description

A cell with a bed elevation below −9999 m was detected after applying elevation data to the mesh. Values in this range are almost certainly NoData or null values from a bathymetry or DEM dataset that have been incorrectly applied to the mesh rather than masked.

Suggestions

Review the bathymetry and DEM source files for NoData regions. Ensure the NoData value is correctly specified in the source data so that cells without valid elevation data are not assigned unrealistic values.

Use the GIS messages output file to identify the affected cells and inspect the source data in those areas.