Adding Elevation vs. Volume Data to a Pond
You can add an elevation-volume curve to a pond. The area-volume points defined in the curve are used to calculate pond volumes. The elevation-volume points defined in the table are used to calculate total pond volume. It is important that this storage relation be single-valued. This means that any volumetric quantity occurs only once in the table only, as CivilStorm interpolates linearly between any two values in the table. You define elevation-area curves in the Elevation-Volume Curve dialog box.
To add an Elevation vs. Volume curve to a pond:
- Click a pond in your model to display the Property Editor, or right-click a pond and select Properties from the shortcut menu.
- In the Physical section of the Property Editor, select Elevation-Volume Curve in the Volume Type field. The Elevation-Volume Curve field becomes available.
- Click the Ellipses (...) button next to the Elevation-Volume Curve field.
- In the Elevation-Volume Curve dialog box, each row in the table represents a point on the Elevation-Volume curve. Type values for Elevation, Volume, and Percent Void Space for each row. Click the New button to add a row or press the Tab key to advance to the next field in the table.
- Perform the following optional steps:
- To delete a row from the table, select the row then click Delete.
- To view a report on the curve, click Report.
- To view a plot of the curve, click Graph.
- Click OK to close the dialog box and save your curve data in the Property Editor.
Elevation-Volume Curve Dialog Box
This dialog box allows you to define elevation-volume tables. The dialog box contains the elevation-volume table and the following buttons:
The table contains the following columns:
Column | Description |
---|---|
Elevation | The cumulative volume from the bottom of the pond to that elevation. |
Volume | The volume data for the pond. |
Void Space | The void space volume data for the pond. Void space is used on any volumes option to adjust the effective storage volume for rock-filled or other porous media filled basins or vaults. Set this to 100% if there are no rocks or fill to reduce the available volume. |