沙漠与绿洲气象2012，Vol.6Issue(1)：36-40,5.
华东地区降水时频变化特征与ENSO关系
Relationships between ENSO and Precipitation Changes in Eastern China
王红雷 1陈瑶 1梁艳 1姜燕敏 1程赢1
作者信息
摘要
Abstract
In this paper, the variations of precipitation, air temperature and ENSO in Eastern China during recent 56 years were analyzed using the method of Morlet wavelet transformation. The results showed that multi-time scale characteristics appeared in all the monthly anomaly series of precipitation, air temperature, sea surface temperature （ASST） and southern oscillation index （ASOI）,while each time-scale period＇s intensity was different. Meanwhile, cross wavelet transformation was also used to study the correlations of AR,AT with ASST, ASOI. It showed positive correlations between precipitation and ENSO at quasi-biennial 2-4 years periodic scale, while positive and negative correlations aherred regularly at inter-decade scale and annual scale above 8 years and positive correlations dominated showed multi-time scale characteristics. The correlations between temperature and ENSO showed multi-time scale characteristics.关键词
ENSO/降水/小波变换Key words
ENSO/precipitation/wavelet transformation分类
天文与地球科学引用本文复制引用
王红雷,陈瑶,梁艳,姜燕敏,程赢..华东地区降水时频变化特征与ENSO关系[J].沙漠与绿洲气象,2012,6(1):36-40,5.
