Assessment of evapotranspiration and soil water content in the Kysuca River basin (Slovakia) using a rainfall-runoff model

Rainfall-runoff modelling is a commonly-used tool for analysis of various aspects of hydrological research. An application of the distributed hydrological model brings the benefits of assessment to the spatially distributed results. Description of the spatial distribution of soil and vegetation type...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2008-11, Vol.4 (1), p.012002-14
Main Authors: Koskova, Romana, Nemeckova, Sona, Sitkova, Zuzana
Format: Article
Language:English
Subjects:
Evaluation
Evapotranspiration
Forest degradation
Freshwater
Hydrologic models
Hydrologic research
Hydrology
Moisture content
Rainfall-runoff relationships
River basins
Rivers
Runoff
Simulation
Soil layers
Soil water
Spatial distribution
Tensometers
Water content
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Summary:Rainfall-runoff modelling is a commonly-used tool for analysis of various aspects of hydrological research. An application of the distributed hydrological model brings the benefits of assessment to the spatially distributed results. Description of the spatial distribution of soil and vegetation types is an essential task and substantially influences the accuracy of the results. The Kysuca River basin has been chosen for an evaluation of soil water content and evapotranspiration by a distributed hydrological model, SWIM (Soil and Water Integrated Model). The primary interest in this analysis was motivated by assessment of forest health conditions in the area and finding possible causes of forest deterioration. Evapotranspiration and soil water content in two selected soil layers in each hydrotop have been evaluated in a simulation period, 1995-1999. A set of maps each representing an individual day of the simulation period has been obtained as a result of the simulation for each variable mentioned above. The simulation has also been carried out for 2007, when the results for selected hydrotops were statistically processed and compared with the available observed data measured during the field survey. Nevertheless, the comparison is affected by the fact that the tensometers have not yet been calibrated to the local conditions. The resulting uncertainties had to be taken into account. The main trends of the simulated and measured soil water content have been evaluated and assessed as satisfactory.
ISSN:1755-1315
1755-1307
1755-1315
DOI:10.1088/1755-1307/4/1/012002