中国南极长城站1986—1988年电离层资料分析及其结果

Analysis of the Ionospheric Data from 1986 to 1988 Obtained at the Great Wall Station of China,Antarctic

本文详细分析了1986年3月到1988年2月中国南极长城站上空电离层的临频变化,并与英国的 Argentine Istand 站、苏联的 Mockba 站、澳大利亚的 Hobart 站的进行了比较,结果表明,长城站的电离层变化具有 Weddell 海异常现象。在3月2日和10月31日附近,临频最大值的出现时间有一个大约12h 的跳变。在临频的季节变化中,夜间值变化最大,中午值变化最小。文章在最后还对 Weddell 海异常的形成机制作了简要讨论。

The ionospheric data from March 1986 to February 1988 obtained at the Great Wall Station of China was detailedly studied in this paper.We also compared the f_0F_2 variations with those at Argentine Island Station of U.K.,Mockba Station of Soviet Union,Hobart Station of Aus- tralia,Which shows that the f_0F_2 changes above the Great wall station are characterised by the Weddell Sea Anomaly.On 2 March and 31 October,the occurrence time of maximum f_0F_2 sud- denly changed by about 12 hours.The seasonal variations of f_0F_2 was much greater at night than in daytime.The paper also presented a discussion about the mechanism of the Weddell Sea Anomaly.