摘要
采用海温资料和NCEP/NCAR40a再分析的海平面气压场(SLP)、高度场、风场资料,利用REOF、相关分析和合成分析方法,研究了冬季黑潮区域海温异常(SSTA)的时空演变,结果显示:冬季黑潮SSTA具有整体一致的空间变化特征,并具有明显的年际、年代际变化趋势。划分了冬季黑潮海温的正、负异常年,分析了相应年份若干气象要素场的分布特征,结果表明:负异常年时,黑潮海域SLP和700hPa高度场为负距平,冬季风加强,正异常年则反之;冬季黑潮区域SSTA与850hPa风场距平的分布形态关系密切。
Based on the SST and SLP data,the temporal and spatial variations of SSTA in Kuroshio current region have been analyzed in this paper by means of the method of REOF.The results show that there is a spatial change feature as a whole in addition to a remarkable interannual/interdecadal change of SSTA.After dividing the positive and negative SSTA years and analyzing a lot of meteorological elements in corresponding years,it is obtained that the SLP in Kuroshio current region and the height field at 700hPa are negative anomaly with enhancement of winter monsoon in the negative year and vice versa,and that there is a close relation between SSTA of the region and distribution pattern of wind anomaly at 850hPa.
出处
《南京气象学院学报》
CSCD
北大核心
2003年第6期740-748,共9页
Journal of Nanjing Institute of Meteorology
基金
国家自然科学基金资助项目(40175023)
关键词
黑潮
暖性洋流
天气异常
海面温度异常
REOF
Kuroshio current region
SSTA
abnormal general circulation
REOF
correlation analysis
