Dugoročne promene godišnjih i sezonskih proticaja: primer reke Save / Long-term changes of annual and seasonal flows : A case of the Sava River
2014
Stojković, Milan (Institut za vodoprivredu Jaroslav Černi, Beograd (Srbija)) | Plavšić, Jasna (Građevinski fakultet, Beograd (Srbija)) | Prohaska, Stevan (Institut za vodoprivredu Jaroslav Černi, Beograd (Srbija))
This paper investigates the long-term changes in the hydrological time series. For this purpose, we use the trend analysis. The trend analysis is performed by using the standard Mann-Kendall trend test and by using the multi-temporal approach. The analysis is applied to the standardized and averaged time series of seasonal and annual flow of the river Sava at the stations Zagreb and Sremska Mitrovica for period from 1926 to 2005. It is concluded that the trend of seasonal and annual flow series of the Sava River are downward. The trends of annual flows in the region (Danube, Velika Morava, Lim) confirm this general pattern according to which the trends of annual flows in south-eastern Europe are downward. The multi-temporal analysis shows that the trend direction and intensity in the sub-series change with the long-term periodicity. The changes in trend direction and intensity depend on the length of the sub- series and the position of the sub-series within the whole time series.
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