摘要
利用EOF（VEOF）分析方法对1956-2005年东亚冬季风和大气环流场的统计特征进行了分析。结果表明：东亚冬季风存在2个模态,其中第2模态变化在冬季风年代际变化和长期变化趋势中起着较重要的作用;冬季风以及大气环流年代际异常在1980年前后发生了突变;冬季风的年代际变化与中国冬季气温、降水年代际关系密切。
The statistics characteristics of East Asia winter monsoon and atmospheric circulation fields from 1956 to 2005 are analyzed by using the EOF（VEOF） method.Results show that there are two modes in East Asia winter monsoon.The variation of the second mode played a more important role in the interdecadal variations and long-term variations trends of winter monsoon.The interdecadal spatial anomalies of winter monsoon and atmospheric circulation had a sudden change in about 1980.The interdecadal variations of winter monsoon correlate closely to the interdecadal variations of winter temperature and precipitation in China.
出处
《气象科技》
北大核心
2009年第5期549-555,共7页
Meteorological Science and Technology
基金
中国气象局气候变化专项(CCSF2006-36)资助
