摘要
对赤道平流层中带风风速的准两年振荡(QBO),太阳活动(Wolf数)和赤道东太平洋海温异常(SST)资料采用经典的方法和现代的小波变换方法来分析太阳活动、准两年振荡(QBO)和厄尔尼诺(El Nion)之间的联系。结果表明:Wolf 数的准两年振荡和平流层的(QBO)互成负相关。本文对 Angel 和Gray 文章中提出的 QBO 和 El Nino 事件相对应"跳拍"现象作了适当解释。分析表明:太阳活动是这跳拍现象的可能机制之一。
In this papar,the possibility of a relation among Quasi-Biennial Oscillation(QBO)of zonal winds in the equatorial stratosphere,sunsport Wolf number and SST's in the eastern Pacific during the same interval are analyzed.The band filter and the wavelet method which are capable of finding local periods and amplitudes are used in the data processing.It is shown that the coherence estimates between the series of QBO in Wolf and in lower tropical straosphere are of order of -0.6.A possible dynamical explanation for skip a beat of QBO linked El Nino suggested by Angel and Gray is presented.Solar activity is a hypothetical mechanism of this skip.
出处
《云南天文台台刊》
CSCD
1998年第4期23-29,共7页
Publications of the Yunnan Observatoty
