EFFECTS OF THE ATMOSPHERIC COLD SOURCE OVER THE TIBETAN PLATEAU ON THE QUASI 4-YEAR OSCILLATION OF OCEAN-ATMOSPHERIC-LAN
Using correlation analyses,composite analyses,and singular value decomposition,the relationship between the atmospheric cold source over the eastern Tibetan Plateau and atmospheric/ocean circulation is discussed. In winter,the anomaly of the strong (weak) atmospheric cold source over the eastern plateau causes low-level anomalous north (south) winds to appear in eastern China and low-level anomaly zonal west (east) winds to prevail in the equatorial Pacific from spring to autumn. This contributes to the anomalous warm (cold) sea surface temperature the following autumn and winter. In addition,the anomalous variation of sea surface temperature over the equatorial middle and eastern Pacific in winter can influence the snow depth and intensity of the cold source over the plateau in the following winter due to variation of the summer west Pacific subtropical high.
作 者： ZHANG Bo CHEN Long-xun ZHOU Xiu-ji ZHAO Bin 作者单位： ZHANG Bo,CHEN Long-xun,ZHOU Xiu-ji(Chinese Academy of Meteorological Sciences,Beijing 100081 China)ZHAO Bin(National Meteorological Center,Beijing 100081 China)
刊 名： 热带气象学报(英文版) 英文刊名： JOURNAL OF TROPICAL METEOROLOGY 年，卷(期)： 2009 15(1) 分类号： P434 关键词： climatology atmospheric cold source diagnostic analysis Tibetan Plateau