Rainfall and runoff regime trends in mountain catchments (Case study area: the upper Hron River basin, Slovakia)

[img]
Preview
PDF
Language: English
2367Kb
Title:Rainfall and runoff regime trends in mountain catchments (Case study area: the upper Hron River basin, Slovakia)
Creators:
Blahušiaková, Andrea; ablahusiak at gmail dot com; Charles University in Prague, Faculty of Science, Department of Physical Geography and Geoecology, Albertov 6, 128 43 Prague 2, Czech Republic.
Matoušková, Milada; Charles University in Prague, Faculty of Science, Department of Physical Geography and Geoecology, Albertov 6, 128 43 Prague 2, Czech Republic.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 63, 3, pp. 183-192
Uncontrolled Keywords:trend analysis, rainfall-runoff regime, Mann-Kendall test, IHA software, Hron River basin

Abstract

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.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Rainfall and runoff regime trends in mountain catchments (Case study area: the upper Hron River basin, Slovakia)
Translated title:Rainfall and runoff regime trends in mountain catchments (Case study area: the upper Hron River basin, Slovakia)
Creators:
Blahušiaková, Andrea; ablahusiak at gmail dot com; Charles University in Prague, Faculty of Science, Department of Physical Geography and Geoecology, Albertov 6, 128 43 Prague 2, Czech Republic.
Matoušková, Milada; Charles University in Prague, Faculty of Science, Department of Physical Geography and Geoecology, Albertov 6, 128 43 Prague 2, Czech Republic.
Uncontrolled Keywords:trend analysis, rainfall-runoff regime, Mann-Kendall test, IHA software, Hron River basin
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:63
Number:3
Page Range:pp. 183-192
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8519
Item Type:Article
Deposited On:17 Dec 2015 12:38
Last Modified:17 Dec 2015 11:38

Citation

Blahušiaková, Andrea; Matoušková, Milada (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). pp. 183-192. ISSN 0042-790X

Repository Staff Only: item control page