摘要
本文描述了子波变换分析的基本原理，并用这一方法分析了日长、大气用动量和太阳活动指数的MJO特性。结果表明：几种序列均存在着40－60天高频变化，且这些变化在不同历元处有显著的差别，这些时空变化特性将进一步揭示太阳活动指数与日长、大气之间的相互关系。作者认为．于波变换分析可帮助我们考虑这些序列之间的动力学机制。
The basic concept of the wavelet transform is described in paper. The method is appliedto the length of day, atm0spheric angular m0mentum, wolf number. Results shown that inall these series exist MJO with periods ranging from 4O to 6O days. The temp0ral evolutionfeatures of MJO in different epoch,s could be observed as well. The relatl0nship betweensolar activity and Earth rotation as well as atmospheric angular momentum is furtherexplored from these analyses. Wavelef transform analysis may be used to investigatedynamics mechanism between them.
出处
《中国科学院上海天文台年刊》
1995年第16期21-26,共6页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
