How to set dynamic breach height
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Breaches can be set to have a dynamic breach height, so that over time the terrain is heightened or lowered. This can allow a breach to appear or worsen at a later point during the simulated period. It can also allow a breach to be closed over time, or a levee breach to appear after a set period. See the breach height page for more information on how the breach is lowered to the provided values.
Editor → Current Situation (Ribbon tab) → Overlays (Ribbon bar) → The Flooding Overlay (Left panel) → Configuration Wizard (Right panel)
How to set a dynamic breach height for an existing breach.:
- Prepare a CSV file with the desired timing data for the breach height.
- Open the configuration wizard of the Flooding Overlay and continue to the step concerning breaches.
- Set the breach height's mode to dynamic, and select 'Select'. This will open the CSV importing tool.
- Select 'Import new CSV', and select the CSV file with the desired timing data.
- Answer the questions about your data format to ensure the file is interpreted correctly.
- The imported values now appear in the CSV importing tool. The CSV importing tool can now be closed.
- Continue with the configuration wizard of the Flooding Overlay.
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Example of a CSV file opened in Excel. In the left column the time in seconds is displayed. In the right column the terrain height. -
Choose the option dynamic in the wizard and click on select. -
Choose import CSV and import the created file.
Notes
For breaches open at the start, set the first CSV height value low enough to allow water flow. For breaches that open during simulation, set the initial height equal to the local terrain height.
Dynamic breach heights can also be set manually in the breach's breach height attribute. See also the image below.