How to use the 1D Model Health Checker

IMPORTANT: This tool requires USER JUDGEMENT to select the correct tests and interpret the results. It is important that the modeller performing the test is familiar with the meaning of the results. A model with many non-conformities is not necessarily a poor model; nor does a model with few non-conformities necessarily guarantee good results.

This utility carries out a number of checks on the model. The theory behind each check and the checking methodology is described below. Not all the checks are necessarily valid for all models and it is possible to carry out individual checks or decide what you want to check.

To launch the Health Check window, select the 1D Health Check item under Model Review tools - > 1D models from Flood Modeller Toolbox. To run any of the tests, select the "Check" button next to each required test. To run all the tests in a group, select the check box from the header of that particular group (e.g. "Sections") before pressing the "Run Selected Checks" button. To run all the tests, select the "Health Check" check box at the top of the list.

Why and when should I use this tool?

It is recommended that the 1D Health Checker is run before performing the first simulation of a model. Errors trapped during modelling development are less likely to propagate throughout the project. It is also recommended to run this tool frequently to help understand the model's limitations as it is built or modified. This tool is designed to help modellers improve their modelling skills and improve client deliverables.

Finding non-conformities

The 1D Health Checker will almost always find non-conformities in a model. However, it is stressed that not all errors or warnings cause problems and it is up to the user of this tool to sift the reported errors and be judgemental. However, it is generally good practice to eliminate potential errors.