赤道异常的两日振荡

本文给出了赤道异常两日振荡的四大特点;说明了磁暴、电离层暴引起的f₀F₂起伏波动与赤道异常两日振荡的区别;讨论了不同周期赤道异常长周期振荡的迭加;最后将这些结果用于东亚扇区, 发现35°N以北的逐日起伏波动主要由电离层暴控制;31°N以南f₀F₂的逐日起伏波动主要由赤道异常的长周期振荡控制. 

THE 2-DAY OSCILLATIONS OF THE EQUATORIAL ANOMALY

The four features of the 2-day oscillations of the equatorial anomaly are revealed, the differences of the variations of the f₀F₂ caused by the ionospheric storm from the 2-day oscillations of the equatorial anomaly are found out, the superposition of the different periods of the planetary scale oscillations of the equatorial anomaly are discussed. Finaly the above results are applied to the ionosphere in east Asia and it is found that to the north of 35°N, the day-to-day variations of the f₀F₂ are caused by the Ionospheric storm and to the south of 31°Nthe day-to-day variations of the f₀F₂ are caused by the superposition of the planetary-scale oscillations of the equatorial anomaly with different period.