公历一九三六年六月十九日上海日偏蚀时天空电离层游离程度之测量(英文)

本文报告公历一九三六年六月十九日在上海日偏蚀时用临界频率法测量天空电离层游离强度之变化就F_1层所显之结果而论,足为紫外线作用论强有力之一证惟按E层所显之结果则显出该层游离化之主因颇有一部分非紫外线之作用。     

公历一九三六年六月十九日上海日偏蚀时天空电离层游离程度之测量

本文报告公历一九三六年六月十九日在上海日偏蚀时用临界频率法测量天空电离层游离强度之变化就F_1层所显之结果而论,足为紫外线作用论强有力之一证惟按E层所显之结果则显出该层游离化之主因颇有一部分非紫外线之作用。     

武昌电离层F_2区峰值上、下部电子含量观测结果的分析研究

本文介绍了武昌台自1980年4月至1982年2月对ETS-Ⅱ卫星的136兆赫信号法拉第旋转的连续测量所得到的电离层总电子含量N_F的观测结果。并利用该台同时记录的2500余张电离层频高图,分析了F₂峰以下电子含量N_b对N_F的贡献。总含量N_F、下部含量N_b和最大电子浓度N_max的日变化曲线表明,电离层中经常存在大气声重波扰动,这种波状扰动在不同高度上有时很不相同。N_F,N_b和N_max的季节变化呈现明显的Appleton异常和腊月异常。电离层峰以上和峰以下电子含量的比率N_a/N_b,白天受电离最大净生成率所在高度随太阳天顶角变化的影响;在1200—2200LT时段内受外层大气温度变化的影响;午夜至黎明前接近一个常数。     

A STUDY OF THE IONOSPHERIC DATA OBTAINED AT WUCHANG-SEPT. 1946 THRU. DEC. 1947

Routine hourly observations of ionospheric characteristics have been taken at Wuchang since August 20. 1946. In this paper a general analysis of the data obtained from September 1946 through December 1947 is attempted. The diurnal and seasonal variations of ionization density and virtual height for all regular layers (E, F-l, F-2) are plotted in diagrams and briefly explained. Deviations from the normally recognized characteristics are discussed in more detail.Besides the normal characteristics, some special phenomena such as the occurrence of E₂ near Sunrise and two major ionospheric storms are briefly described. Comparatively detailed study is made on the sporadic E ionization, with the conclusion that its percentage time of occurrence before mid-night is more than that after mid-night and that it is more prevalent in autumn than in any other season. Abnormally high E₃ ionization was observed on October 10, 1946 when the Giacobini-Zinner comet was nearest the Earth. These facts indicate that metenrs are probably important agents in producing sporadic E jouization.