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Impact of evapotranspiration on discharge in small catchments

Dvorakova, Sarka ; Kovar, Pavel ; Zeman, Josef

Journal of Hydrology and Hydromechanics, 2014-12, Vol.62 (4), p.285-292 [Periódico revisado por pares]

Bratislava: De Gruyter Poland

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  • Título:
    Impact of evapotranspiration on discharge in small catchments
  • Autor: Dvorakova, Sarka ; Kovar, Pavel ; Zeman, Josef
  • Assuntos: Approximation ; Calibration ; catchment water depletion ; Catchments ; Computational fluid dynamics ; Computer simulation ; Discharge ; diurnal streamflow variability ; Evapotranspiration ; Groundwater ; Hydrology ; linear storage model (lsm) ; Runoff ; Soil (material) ; Stream flow ; Valleys ; Vegetation
  • É parte de: Journal of Hydrology and Hydromechanics, 2014-12, Vol.62 (4), p.285-292
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: We apply the Linear Storage Model (LSM) to simulate the influence of the evapotranspiration on discharges. High resolution discharge data from two small catchments in the Czech Republic, the Teply Brook and the Starosuchdolsky Brook catchment are used. The results show the runoff process is simpler in a deeper valley of the Starosuchdolsky catchment where the soil zone is deeper and the valley bottom recharges runoff even during very dry periods. Two-soil zone model is adequate to simulate the diurnal runoff variability. Three-soil zone model is needed in the Teply Brook catchment due to the absence of water transport in the most-upper soil zone. Time delays between minimum and maximum discharge during the day reach up to about 20 hours. Evapotranspiration and hydraulic resistances are as high as 14% of catchment daily runoff in the urbanized Starosuchdolsky Brook catchment and 25% of catchment daily runoff in the forested, less impacted Teply Brook catchment
  • Editor: Bratislava: De Gruyter Poland
  • Idioma: Inglês;Tcheco;Eslovaco
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