SWMMHYDROLOGY

The command SWMMHYDROLOGY create and edit items related to hydrology in SWMM

To use, call SWMMHYDROLOGY from the command line, menu, toolbar, or Ribbon

On this screen you can:

• New - Create a new item
• Delete - Delete selected items if not in use
• Edit - Edit the selected item
• Copy - Copy and edit the selected item
• Pick - select an item on the screen that uses the item you want to edit

When clicking the button New, you will be asked to choose the type of item to create:

There are 4 types of items in hydrology:

1. Rain Gages - provides rainfall data for one or more subcatchment areas within a study region
2. Aquifers - zones of sub-surface groundwater used to model the vertical movement of water infiltrating the Subcatchments above them
3. Snow Pack - contains parameters characterizing Snow Pack, removal and melting without subcatchments
4. Unit Hydrographs - estimate rainfall dependent Inflow/infiltration (RDII)

The property editor looks like this for the first three items:

Unit Hydrographs have a different editor compared to other items:

It's a good idea to look at the help page for each item to better understand its properties

Note: To be able to Use this command, a license is required. Otherwise, you will only be able to view the pre-existing data.