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1 1999

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Adaptacja ciągłego modelu odpływu w dorzeczu Nysy Kłodzkiej

Mućka A., Nachtnebel H.P.

Przegląd Geofizyczny

1999

Z. 3

131-143

The application of a continuous with physically based parameters ENNS-runoff model for Nysa Kłodzka catchment is described in this article. The model is designed for different catchments and different time steps. At least it should be operational at daily basis and for smaller basins a hourly time step is recommendable. The model needs to be calibrated for a catchment before it can be used for practical applications. The ENNS-model is used to simulate the runoff process in a natural catchment based on data for precipitation and air temperature. The model computes snow accumulation, snowmelt, actual evapotranspiration, storage in soil moisture, groundwater and time delay for runoff in reservoirs and rivers in the catchment. It is a conceptual model, meaning that it is based on some considerations of the physical structure and processes in the catchment. Each subcatchment is treated as one unit. Within each subcatchment the subbasin is structured into zones with similar hydrological and meteorological characteristics. For the ENNS runoff model the Nysa subbasins are subdivided into 3 several elevation zones because of the influence of an obvious gradient in temperature and rainfall.