赤道电离层泡与大气准两年振荡  

THE EQUATORIAL IONOSPHERIC BUBBLE AND THE QBO

作　　者：陈培仁[1] 

机构地区：[1]中国科学院空间科学与应用研究中心

出　　处：《地球物理学报》1994年第A02期9-14,共6页Chinese Journal of Geophysics

基　　金：中国科学院"八五"重点项目

摘　　要：研究赤道电离层泡的出现率与赤道带低平流层大气准两年振荡（ＱＢＯ）的关系．发现赤道电离层泡的出现率受到ＱＢＯ的调制．这种调制有很强的经度效应：在印度－东非扇区，ＱＢＯ东风向，赤道电离层泡出现率高；ＱＢＯ西风向，赤道电离层泡出现率低；在美洲扇区情况则与此相反．The relationship between the percentage occurrence of the equatorial plasma bubble(EPB) and the Quasi-Biennial Oscillatioin(QBO) of the low-stratospheric mean zonal wind at equatorial zone has been investigated to reveal the QBO-modulation effect on the percentage occurrence of the EPB. A longitudinal deqendence of this QBO-modulation effect is also found: The percentage occurrence of the EPB is increase(decrease) in the east phase of the QBO at India-East Africa Sector(at America Sector);and it is decrease(increase) in the west phase of the QBO at India-East Africa sector(at America sector).It is suggested that this represents a new evidence that the low-latitude ionosphere is modulated by the atmospheric planetary wave from below.

关 键 词：赤道 电离层泡 大气 准两年振荡 大气动力学 

分 类 号：P352[天文地球—空间物理学] P433[天文地球—地球物理学]