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根根在武昌对日本 ETS—Ⅱ卫星的观测资料,我们分析了1988年上半年电离层闪烁和总电子含量的记录,结果发现:(1)伴随日落过程,柱电子含量迅速减小,但不久就出现了持续2～4小时的增强。(2)在日落过程中,常出现幅度较大、周期为2小时左右的波状扰功,即出现柱电子含量短时间无规则增强。为了研究这些现象产生的物理机制,我们对武昌地区电离层柱电子含量随地方时的变化进行了模拟。出发方程为离子的连续性方程:
Based on observations of ETS-II satellite from Japan at Wuchang, we analyzed the records of ionospheric flicker and total electron content in the first half of 1988 and found that: (1) the electron content decreased rapidly with the sunset, but shortly after There has been sustained 2 to 4 hours of enhancement. (2) In the process of sunset, wave amplitude disturbances with large amplitude and period of about 2 hours usually appear, which means that there is no regular enhancement of column electron content in a short period of time. In order to study the physical mechanism of these phenomena, we simulated the electron content of ionospheric columns in Wuchang with local time. The starting equation is the continuity equation of ions: