Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/1125
Title: Annual and seasonal variability of precipitation in Vojvodina, Serbia
Authors: Tošić, Ivana
Hrnjak, Ivana
Gavrilov, Milivoj B.
Unkašević, Miroslava
Marković, Slobodan B.
Lukić, Tin
Issue Date: 17-Sep-2013
Journal: Theoretical and Applied Climatology
Abstract: 
Annual and seasonal variability of precipitation observed at 92 stations in Vojvodina (Serbia) were analyzed during the period 1946–2006. The rainfall series were examined by means of the empirical orthogonal functions (EOF). The first set of singular vectors explains from 68.8 % (in summer) to 81.8 % (in winter) of the total variance. The temporal variability of the time series associated with the main EOF configurations (the principal components, PCs) was examined using the Mann–Kendall test and the spectral analysis. The time series of PC1 revealed decreasing trend in the winter and spring precipitation and increasing trend in the autumn, summer, and annual precipitation. The relationships between the first PC and circulation patterns, such as the North Atlantic Oscillation (NAO), the East Atlantic (EA) pattern, and East Atlantic/West Russia pattern, were also investigated. The PC1, displaying temporal behavior of the first mode, demonstrated evident correspondence with the NAO index in analysis of the annual, winter, and autumn precipitation. Power spectra of the PC1 show statistically significant oscillations of about 3.3 years for the spring precipitation and about 8 and 15 years for the winter precipitation. Comparisons with spectral analysis of authors for some regions in Europe, most of them in the Mediterranean domain, show that similar periodicities are detected.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/1125
ISSN: 0177-798X
DOI: 10.1007/s00704-013-1007-9
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