While the Observed catchment runoff depth - SRG model allows the inclusion of an observed time series for runoff and uses a digital filter to separate the quick (surface flow) and slow flow (base flow) components, the Observed catchment surface runoff depth model assumes that all runoff in the time series is surface flow, and so quick flow is set equal to the observed flow, and slow flow is set to zero.
Scale
An observed catchment runoff depth is applied to a functional unit (FU).
The model can be used at hourly to annual time-steps.
Principal developer
Cooperative Research Centre for Catchment Hydrology.