Storm Event Profiles – Australia Rainfall and Runoff (2016) Workflow

This wizard page is displayed if you selected an “Australia Rainfall and Runoff (2016)” IDF Storm Group on page 2 of the wizard. The significance of this is that several storm profiles are applied to each return period and duration.

The third step requires the selection of a storm event profile. In the case of Australia Rainfall and Runoff (2016) workflow, the list of available libraries will contain fixed-time dimensionless curves. Once a storm event profile library is selected, the storm event profile column becomes editable.

Once a library is selected, specify the type of storm event to generate. The choices are Time-Intensity and Time-Depth. The default selection is Time-Intensity. If you select Time-Depth, you can then specify whether to generate cumulative or incremental depth curves.

In addition to the profile, you also need to specify a catchment prototype and the calculation options to use for each return period/duration pair.

Catchment Prototype

If you selected a base scenario that uses a non-rational based runoff method, then you can optionally leave the catchment prototype unassigned. This will use the existing catchment properties during the calculation.

However, if the base scenario is rational method based (Rational Method, Rational Method (UK), Modified Rational) then assigning a catchment prototype is required.

Calculation Options

Calculation options also need to be selected. Only calculation options that use the implicit, explicit or GVF-Convex (using EPS) solvers will be available for selection. This allows you completely customize the calculation options on how each profile is calculated.

At this point you can optionally click on Finish, which will immediately start the calculations, or click on Next to review the profiles that will be used for the calculations.

The export button allows you to export the settings of the wizard to an external file for use later. This can make the process of configuring the wizard a lot quicker like presetting the selection of return periods and durations to use. You can export to ProjectWise as well as the local data storage.