What happened to the subarea and hydrograph queue node elements?
In previous versions of Pondpack, the user could use the “Hydrograph Queue” element to inject a user defined hydrograph. The “Subarea” element was used to represent drainage areas. The functionality of these elements are now included in the Catchment element in Pondpack V8i. A catchment is a polygon representation of your drainage area, using a certain runoff method (such as Unit hydrograph). To model a hydrograph queue node (user defined hydrograph), you would select “user defined hydrograph” as the Runoff Method, then enter your hydrograph using a table of time vs. flow. Your user defined hydrograph would then be injected into the system, at the point identified in the catchment “outflow node” property.