In GeoSTORM, the Subbasin Table Edit command allows the user to view and edit all the parameters of the subbasins in a single editable table. The user can also view the corresponding output results from this table.
Follow the steps below to use the Subbasin Table Edit command:
- From the Input ribbon menu, click the Drainage Subbasins dropdown menu and 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 Hydrology Analysis Engine & Infiltration Method
The content of the Subbasin Table Edit dialog box changes based on the hydrology analysis engine and infiltration method selected from the Scenario Manager dialog box, as shown below.
| Hydrology Analysis Engine | Infiltration Method |
|---|---|
| Dekalb Rational | Not Available |
| EPA SWMM | Green Ampt/Modified Green Ampt |
| Horton/Modified Horton | |
| SCS Curve Number | |
| Modified Rational | Not Available |
| Rational Method | Not Available |
| SCS TR-20/TR-55 | Not Available |
Note: The infiltration method is only available when EPA SWMM is selected as the hydrology analysis engine.
Upon selecting the hydrology analysis engine and infiltration method, the parameters displayed in both the Subbasin Data and Result Data panels of the Subbasin Table Edit dialog box change. Refer to this article in our knowledge base to learn more about the Scenario Manager command.
Selecting Storm Results
In the Select Storm Results section, the Storm result to display dropdown combo box allows the user to select the storm frequency whose result is to be displayed.
Note: The Select Storm Results section is only available if the Dekalb Rational Method or Modified Rational or Rational Method is selected as the hydrology analysis engine in the Scenario Manager dialog box. Otherwise, this section is unavailable.
Subbasin Parameters
In the Subbasin Parameters section, the following panels are available:
- Subbasin Data
- Result Data
Subbasin Data
In the Subbasin Parameters section, the Subbasin Data panel contains a table with editable columns listing the subbasin parameters available in the current scenario.
Result Data
In the Subbasin Parameters section, the Result Data panel contains a table with read-only columns listing the corresponding output results for subbasins available in the current scenario.
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 and 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 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 Subbasin ID column and click the Up arrow to sort the data in ascending order. Then, while holding the [Shift] key, select the Drainage Area column and click the Down arrow to apply a secondary sort.
Copying and Exporting the Table
The data in the Subbasin Parameters table can be copied to the clipboard or exported as a Microsoft Excel or PDF document by using right-click context menu commands such as Copy, Copy Table to Clipboard, Export Table to Excel, or Export Table to PDF.
After editing the required subbasin parameters, click the [Close] button to close the Subbasin Table Edit dialog box.