期刊名称:IOP Conference Series: Earth and Environmental Science
印刷版ISSN:1755-1307
电子版ISSN:1755-1315
出版年度:2008
卷号:4
出版社:IOP Publishing
摘要:The North Atlantic Oscillation (NAO) is the most significant large-scale mode of
natural climate variability on the Northern Hhemisphere and Arctic Oscillation
(AO) is its supplement. Both have large impacts on weather and climate in the
North Atlantic region and surrounding continents including Europe. NAO and AO
phases cause specific already defined changes in distribution of climate
elements in wide area. The cross-correlation between daily precipitation data on
stations in Serbia and NAO daily index plus AO daily index for the period
1951-2003 is analysed in this paper. Number of cross correlation coefficients
have been calculated and the highest values were obtained for daily
precipitation in Serbia with the AO index in winter, ranging from -0.44 to –
0.38. The analyses of trend for two periods 1961-2006 and 1980-2006 for the
whole year and during winter months only, at 21 stations in Serbia have been
performed, too. Very high positive trend for precipitation was obtained for many
places in Serbia especially in Vojvodina. The results also indicate to
non-homogeneities in the region and influence of NAO during winter.