Attributing a physical meaning to the calibration of conceptual hydrological model is risk due equifinality, i.e., existence multiple optimal parameterizations that might or not represent actual behavior catchment; propagates posterior studies use outputs as an input. This study proposes and analyses sequential procedures for calibrating models aimed at reducing equifinality. These force reprod...

Understanding the groundwater contribution to streams is critical when dealing with a wide range of water management issues. Analysis of the streamflow hydrograph, specifically separating and interpreting baseflow (the longerterm delayed flow from storage) from quickflow (the short-term response to a rainfall event) is a well-established strategy in understanding the magnitude and dynamics of g...

In the PILPS 2(e) experiment, the Snow Atmosphere Soil Transfer (SAST) land-surface scheme developed from the Biosphere–Atmosphere Transfer Scheme (BATS) showed difficulty in accurately simulating the patterns and quantities of runoff resulting from heavy snowmelt in the high-latitude Torne–Kalix River basin (shared by Sweden and Finland). This difficulty exposes the model deficiency in runoff ...

The rational method is derived as a special case of kinematic wave flow. The definition of runoff coefficient is expanded from the flow-based ratio into volume-based ratio between the volumes under runoff hydrograph and rainfall hyetograph. The new method presented in this paper provides a dimensionless approach to theoretically derive the runoff coefficients for both the conventional two-flow ...

Flood hydrograph simulation is affected by uncertainty in Rainfall – Runoff )RR( parameters. Uncertainty of RR parameters in Gharasoo catchment, part of the great Karkheh river basin, is evaluated by Monte–Carlo (MC) approach. A conceptual-distributed model, called ModClark, was used for basin simulation, in which the basin’s hydrograph was determined using the superposition of runoff generated...