The Subbasin Table Edit command allows the user to edit the subbasin parameters in one dialog box for common hydrology infiltration and runoff methods. When the user selects this command, a modeless dialog box will be displayed. This dialog box contains a table with editable columns listing all the subbasins in the current scenario, along with the associated subbasin parameters. When the user selects a row in the table, the corresponding subbasin will be magnified on the Map View (if not visible) and highlighted. In addition, the user can select a subbasin from the Map View, and the corresponding row in the table will be shown selected.
Follow the steps below to use the Subbasin Table Edit command:
- From the Input ribbon menu, click the Drainage Subbasins dropdown menu and then select the Subbasin Table Edit command.
- The Subbasin Table Edit dialog box will be displayed.
The following sections describe how to use the Subbasin Table Edit command and interact with the above dialog box.
Selecting Infiltration and Runoff Methods
The user can select one of the following infiltration and runoff methods from the Options backstage page. Upon selecting the infiltration and runoff method, the parameters displayed in the Subbasin Parameters table changes.
| Infiltration Methods | Runoff Methods |
|---|---|
| None | None |
| Deficit and Constant | Clark Unit Hydrograph |
| Exponential | Kinematic Wave |
| Green and Ampt | SCS Unit Hydrograph |
| Initial and Constant | Snyder Unit Hydrograph |
| Layered Green and Ampt | User-Specified S-Graph |
| SCS Curve Number | User-Specified Unit Hydrograph |
| Smith Parlange | |
| Soil Moisture Accounting Loss |
Subbasin Parameters
In the Subbasin Table Edit dialog box, the Subbasin Parameters section contains a table with editable columns listing the subbasin parameters.
Sorting the Subbasin Parameters Table
The data in the Subbasin Parameters table can be sorted by multiple columns. The user can sort the data by holding down the [Shift] key while clicking the Up or Down arrows in the column headers. This allows for multi-column sorting without losing the previous sort. The sorting order is determined by the sequence in which the column headers are selected.
Follow the steps below to sort the data by using multiple columns:
- Select the header of the first column and click the Up or Down arrow to sort the data in ascending or descending order.
- Hold down the [Shift] key, then select the header of the second column and click the Up or Down arrow to sort the second column.
- Repeat step 2 to sort the data of any additional column.
For example, first, select the Initial Abstraction column and click the Up arrow to sort the data in ascending order. Then, while holding the [Shift] key, select the Curve Number column and click the Down arrow to apply a secondary sort.
Copying and Exporting Subbasin Parameters
The data in the Subbasin Parameters table can be copied to the clipboard or exported as a Microsoft Excel or PDF document by using the right-click context menu commands, such as Copy, Copy Table to Clipboard, Export Table to Excel, or Export Table to PDF.
Selected Cells Group Editing
The Selected Cells Group Editing section allows the user to edit multiple cells in the Subbasin Parameters table at once.
The user can select the required cells from the table and then edit the subbasin parameters using one of the following options:
- No change: This radio button option is selected by default. When this option is selected, the data remains unchanged.
- Add constant: This radio button entry allows the user to add a constant value to the existing data. The new value will be the sum of the previous value and a constant value provided by the user.
- Multiply by factor: This radio button entry allows the user to multiply the existing data by a factor. The new value will be the product of the previous value and a constant value provided by the user.
- Apply value: This radio button entry allows the user to replace the existing data with a new value. The new value entered in the adjacent entry field will replace all previous values.
After selecting the preferred option, click on the [Apply Change] button to update the new values in the cells.