Design of water infrastructures requires estimation of design flow which is the runoff that an infrastructure can handle safely. For estimation of this design flow, rainfallrunoff modelling is widely adopted. Temporal pattern (the distribution of rainfall depths over sub-storm durations) is considered to be one of the most critical input variables in the rainfall-runoff modelling. Design tempor...

Unlike to so called lumped models in which the quantification of several processes results from a statistical relation between system input and system output for the whole catchment, distributed models enable the differentiation of single modelling entities (e.g. Hydrological Response Units – HRU) which can be parameterized and modelled independently. Furthermore spatially distributed hydrologi...

Rainfall-runoff modelling is a useful tool for water resources management. This study presents a simple daily rainfall-runoff model, based on the water balance equation, which we apply to the 11,630 km2 Lesser Zab catchment in northeast Iraq. The model was forced by either observed daily rain gauge data from four stations in the catchment or satellite-derived rainfall estimates from two TRMM Mu...

A semi-distributed hydrological model was applied to a small forested catcment in southern Finland. The aim was to demonstrate how differences in terrain properties could be taken into account in modelling runoff generation, and to test how well the presented model simulated streamflow with only limited calibration. Modelling was based on subdivision of a catchment into topographically similar ...

This paper explores the behaviour and sensitivity of a watershed model used for simulating lateral soil water redistribution and runoff production. In applications such as modelling the effects of land-use change in small headwater catchments, interactions between soil moisture, runoff and ecological processes are important. Because climate, soil and canopy characteristics are spatially variabl...

The importance of spatial variability of antecedent soil moisture conditions on runoff response is widely acknowledged in hillslope hydrology. Using a distributed hydrologic model, this paper aims at investigating the effects of soil moisture spatial variability on runoff in various field conditions and at finding the structure of the soil moisture pattern that approaches the measured soil mois...