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Impact of evapotranspiration on discharge in small catchments

In: Journal of Hydrology and Hydromechanics, vol. 62, no. 4
Šárka Dvořáková - Pavel Kovář - Josef Zeman

Details:

Year, pages: 2014, 285 - 292
Keywords:
Catchment water depletion; Diurnal streamflow variability; Evapotranspiration; Linear Storage Model (LSM).
Original source URL: http://www.ih.savba.sk/jhh
About article:
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.
How to cite:
ISO 690:
Dvořáková, Š., Kovář, P., Zeman, J. 2014. Impact of evapotranspiration on discharge in small catchments. In Journal of Hydrology and Hydromechanics, vol. 62, no.4, pp. 285-292. 0042-790X (until 2019) .

APA:
Dvořáková, Š., Kovář, P., Zeman, J. (2014). Impact of evapotranspiration on discharge in small catchments. Journal of Hydrology and Hydromechanics, 62(4), 285-292. 0042-790X (until 2019) .