Message 10148

TUFLOW FV

Available since version: 2026.2.0

ERROR 10148 - SIGMA values must be between 0.0 and 1.0

Description

One or more sigma values in the csv file specified by Layer Face File == are outside the valid range of 0.0 to 1.0. This check applies when Vertical Mesh Type == SIGMA.

Suggestions

Check the SIGMA column in the layer file and ensure all values are between 0.0 and 1.0 exclusive. The bed layer (0.0) and surface layer (1.0) are added automatically and must not be included.