Derived Unit Hydrograph
- … the storm should be fairly uniform in nature and the excess precipitation should be equally as uniform throughout the basin. This may require the initial conditions throughout the basin to be spatially similar.
- … Second, the storm should be relatively constant in time, meaning that there should be no breaks or periods of no precipitation.
- … Finally, the storm should produce at least an inch of excess precipitation (the area under the hydrograph after correcting for baseflow).