The User Defined Rainfall (Design Storm) option allows a user to create one or more rainfall events using a Temporal Pattern based on a given duration and an total Depth (or Average Intensity).


Allows a user to create one or more rainfall events using a Temporal Pattern based on a given duration and an total Depth (or Average Intensity).

Buttons

Add

Adds a new row to the table ready for data to be entered.

Note: A new row will be added automatically as the data is entered.

Delete

Deletes the currently selected event from the table

Clear

Clears ALL of the events from the table

Spreadsheet

Use

Checkbox to indicate is the event should be run as part of the analysis.

Note: At least one event must be turned on for the analysis to be run.

Label

The label to be used for the storm, which will be shown on the results.

Duration

Length of the event to be built.

Run Time

The length of the analysis that will be run. Typically this will be twice the duration, which will be specified by default. However this can be overruled by entering your own run time manually.

Depth

The depth of rainfall that falls for the given storm duration.

Intensity

The average intensity for the rainfall that fell for the given storm duration.

Note: This will be automatically calculated from the Depth/Duration. However it can be entered and the Depth is updated.

Temporal Pattern

Clicking the button in the table will open the Temporal Pattern form to allow the profile of the rainfall to be entered. This is then used to build an event from the duration and depth specified.

Note: The type of Temporal Pattern entered will affect the ability to generate a storm of a given duration.