Lesson 6: Modeling a Watershed Management Practice
With a project active in WinHSPF, the user may wish to make significant changes in the HSPF input sequence and save this modified input sequence under a new WinHSPF project name. This situation might occur if the user is modeling a watershed management practice. This lesson demonstrates how to make changes to the project to model a sediment BMP and save the changes to a new WinHSPF project name. (An alternate way to add BMPs is through use of the BMP Editor. See the Best Management Practices Editor for more details.)
Watershed management practices can be modeled in HSPF using the BMPRAC operation. Adding a BMPRAC operation requires several steps, including adding the BMPRAC operation to the Operation Sequence block, adding the appropriate tables within the BMPRAC block, and adding the appropriate connections.
WinHSPF provides assistance in adding the BMPRAC operation and required BMPRAC tables, but the appropriate Mass-Links must already exist in the Mass-Link block. This tutorial assumes that the appropriate Mass-Links do not already exist.
The user must first add the necessary Mass-Links. From the main WinHSPF window, click on the Edit menu, and select the Mass-Link option.