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纬向风与赤道异常的行星波同步振荡及其谱分析
Alternative TitleSPECTRAL ANALYSIS FOR THE LONG PERIOD OSCILLATIONS IN THE EIA AND ITS COINCIDENCE WITH THE ZONAL NEUTRAL WIND
罗毅; 陈培仁; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication地球物理学报
1993
Volume36Issue:6Pages:717-724
ISSN0001-5733
Language中文
Keyword纬向中性风 赤道异常的行星波振荡 最大熵谱分析
Abstract本文利用最大熵谱分析方法处理了电离层赤道异常北峰Okinawa站的f_0F_2行星波周期的振荡.比较同一期间相近经度链上的南北半球观测到的低热层中性大气运动,发现较短周期的2—5日波,尤其是在南北半球的夏季期间(北半球7—8月前后,南半球1—2月前后),其纬向风与赤道异常振荡强弱及周期变化具有良好的同步对应性.对于较长周期的中性风振荡,只要其幅度相当大,也会在赤道异常的振荡中有所对应.从而提供证据说明中性风的行星波振荡是赤道异常的行星波振荡的驱动源.
Other AbstractThe day-to-day variations of the f0F2 value in the EIA s north crest (Okinawa) are processed with the Maximum Entropy spectral analysis Method (MEM), and so the long ptriod oscillations of EIA are studied more deeply. The oscillations of the EIA and the neutral wind on two hemisphere, that were observed in the same time and nearby longitude chain, are compared. For short period wave (2-5 day), especially during the summer time of the two hemisphere (around Jul. and Aug. in the northern, Jan. and Feb. in the other), the rariartons of the strength and period in the ETA's and zonal neutral wind oscillations are in well agreemeat; for longer period wave,迁the amplitude of the wind is rather large, there is also respondence in the ETA's variation. So it gives proof evidence to prove that the long period.cillation of the neutral wind is the driving source of the same oscillation in the ETA.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1251
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
罗毅,陈培仁,北京8701信箱. 纬向风与赤道异常的行星波同步振荡及其谱分析[J]. 地球物理学报,1993,36(6):717-724.
APA 罗毅,陈培仁,&北京8701信箱.(1993).纬向风与赤道异常的行星波同步振荡及其谱分析.地球物理学报,36(6),717-724.
MLA 罗毅,et al."纬向风与赤道异常的行星波同步振荡及其谱分析".地球物理学报 36.6(1993):717-724.
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