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Trend analysis of rainfall-runoff regimes in selected headwater areas of the Czech Republic

DOI: 10.2478/v10098-011-0003-y

Keywords: Statistics, Trends, Rainfall-Runoff Regime, Air Temperature, Snow Parameters, Headwaters Areas, Czech Republic

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Abstract:

The main aim of this work is to evaluate the development of rainfall-runoff regime in selected river basins of the umava Mountains (Bohemian Forest), the Jeseníky Mountains and the Kru né Mountains (Ore Mountains) in the last 50 years. Besides the identification of inhomogeneity in time series of mean discharges, rainfall amounts, temperature and snow cover data, the work deals with an analysis of trends using annual and monthly data. Different methodological tools for identification of changes and trends in hydro-climatic time series have been introduced in this study, especially different methods of statistic testing and an application of Mann-Kendall seasonal test. The results have been compared not only from the point of view of the methods applied here, but as well from the viewpoint of geographical difference of the mentioned areas.

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