Click on the Start Year and enter a value of 1975. Now click on the the End Year and enter a value of 1980. The HSPF simulation will now only encompass this six-year span.
Now modify the met segments contributing to the operations. Double-click any field in the Met Seg ID column. The drop-down list contains only one met segment, indicating that there is only one such segment available for application to the corresponding operation. With a Met Seg ID still selected, click on the Edit button at the top left of the Met Segments frame. The Edit Met Segment form appears. Notice that the user may change the way this Met Segment is defined by changing the values in this grid, such as changing the Evap DSN.