Tuflow and estry manual Version 3

6.2Check Files

TUFLOW and ESTRY produce check files for quality control of a model’s input data. It is strongly recommended that models are quality controlled through reviews of the check files.

Effective use of the check files can save days during a model’s development and application.

6.2.1Simulation Log File (.tlf or .elf file)

TUFLOW and ESTRY produce a log file (.tlf or .elf file) containing a record of the simulation. The file is very useful for establishing data input problems and identifying instabilities.

Take time to familiarise yourself with the content of the log file. Much of it is a repeat of the information displayed to the DOS window, so if you can’t access information from the DOS window, check the log file using a text editor.

At key stages during the model development and application search the file for any “WARNING”, “CHECK” or “NOTE” messages. “WARNING” messages in particular should be checked regularly. An “ERROR” keyword indicates an unrecoverable error and causes the simulation to stop. As many errors as possible are trapped before stopping.

An “XY:” at the beginning of a line indicates the error, warning, check or other message has also been redirected to a .mif file (see Section 6.2.2). Opening the .mif file in the GIS often provides a far more rapid location of the message within the model domain(s) than via other ways.

As of Build 2002-10-AC, for 2D/1D models, the 1D domain log file output is now directed to the .tlf file (was previously sent to the .elf file). The .elf file is now only created for 1D only (ESTRY) models.