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The basic water balance, a pointer to a drought on the territory of the Czech

In: Acta Hydrologica Slovaca, vol. 19, no. 2
Jaroslav Rožnovský - Filip Chuchma - Rostislav Fiala - Jaroslav Rožnovský

Details:

Year, pages: 2018, 171 - 178
Keywords:
climate, soil, precipitation, potential evapotranspiration
Original source URL: http://www.ih.sav.sk/ah
About article:
The Brno branch office of the Czech Hydrometeorological Institute uses the AVISO model to calculate basic water balance in weekly steps for grassland, expressed by the difference between precipitation amount and potential evapotranspiration. The calculation uses daily values of sunshine duration, air temperature and humidity and wind speed. The basic assumption of extraordinary drought is low precipitation amount and longer periods without rain. Occurrence of exceptional drought is due to low rainfall amount as well as longer periods without rain, but also due to higher air temperatures. Analysis of selected years with exceptional drought shows that water balance deficits manifest themselves differently in each year. In the summer, the deficit can reach even less than negative 300 mm. By the end of vegetation period, the deficit can be more than 200 mm. The ever-increasing incidence of drought requires attention and search for ways of increasing the retention capacity of the landscape.
How to cite:
ISO 690:
Rožnovský, J., Chuchma, F., Fiala, R., Rožnovský, J. 2018. The basic water balance, a pointer to a drought on the territory of the Czech. In Acta Hydrologica Slovaca, vol. 19, no.2, pp. 171-178. 2644-4690.

APA:
Rožnovský, J., Chuchma, F., Fiala, R., Rožnovský, J. (2018). The basic water balance, a pointer to a drought on the territory of the Czech. Acta Hydrologica Slovaca, 19(2), 171-178. 2644-4690.