Variations of the Electron Density and the Effective Electron Loss Rate in the Ionospheric D-region
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摘要: 本文根据D电离层的电离复合理论,讨论了利用单站、单一频率的LF天波资料连续监测和研究D区域固定高度上电子浓度N(h0,t)和电子有效损耗率ψ(h0,t)随时间变化的方法。应用这一方法对武昌站的部分实验资料作了分析,得到了N(h0,t)的日变化、月变化曲线;并发现ψ(h0,t)也有明显的日照效应,上、下午呈现显著的不对称性;两者的逐日变化都较小。Abstract: In the paper it is pointed out that the time variations of the electron density N(h0, t) and the effective electron loss rate φ(h0, t) at a certain altitude in D-region may be monitored continuously on the basis of a single frequency LP data obtained at a single station. Some LF data observed at Wuchang Ionospheric Observatory (30°32' 40".64N,114°21'21"32E) are analysed thereby. It is shown that the hourly variations of N(h0, t) and φ(h0, t) are asymmetry about noon and the general behaviour of N (h0, t) are in agreement with the previous published results obtained by other methods. Both the day to day variations of N(h0, t) and φ(h0, t) are not obvious.
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