In: Journal of Hydrology and Hydromechanics, vol. 63, no. 3
Andrea Blahušiaková - Milada Matoušková
Detaily:
Rok, strany: 2015, 183 - 192
Kľúčové slová:
Trend analysis; Rainfall-runoff regime; Mann-Kendall test; IHA software; Hron River basin.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
This paper presents an analysis of trends and causes of changes of selected hydroclimatic variables influencing
the runoff regime in the upper Hron River basin (Slovakia). Different methods for identifying trends in data series are
evaluated and include: simple mass curve analysis, linear regression, frequency analysis of flood events, use of the
Indicators of Hydrological Alteration software, and the Mann-Kendall test. Analyses are performed for data from two
periods (1931–2010 and 1961–2010). The changes in runoff are significant, especially in terms of lower QMax and 75
percentile values. This fact is also confirmed by the lower frequency and extremity of flood events. The 1980s are
considered a turning point in the development of all hydroclimatic variables. The Mann-Kendall test shows a significant
decrease in runoff in the winter period. The main causes of runoff decline are: the considerable increase in air
temperature, the decrease in snow cover depth and changes in seasonal distribution of precipitation amounts.
Ako citovať:
ISO 690:
Blahušiaková, A., Matoušková, M. 2015. Rainfall and runoff regime trends in mountain catchments
(Case study area: the upper Hron River basin, Slovakia). In Journal of Hydrology and Hydromechanics, vol. 63, no.3, pp. 183-192. 0042-790X (until 2019) .
APA:
Blahušiaková, A., Matoušková, M. (2015). Rainfall and runoff regime trends in mountain catchments
(Case study area: the upper Hron River basin, Slovakia). Journal of Hydrology and Hydromechanics, 63(3), 183-192. 0042-790X (until 2019) .