摘要
一、一般情况 1989年7月31日到9月9目,在新乡、临潼和乌鲁木齐三点对VLF Omega信号相位变化进行了同时接收。与此同时,乌鲁木齐天文站的太阳色球观测和乌鲁木齐电离层垂测站的电离层探测也同时进行。在这期间,三个VLF信号观测点上同时有记录的太阳活动事件有36次。其中最大的发生在8月15日、16日和17日。特别是8月16日的太阳耀斑造成电离层垂测站的频高图近四个小时内没有回波。
From 31, July to 9, Sep., 1989, VLF Omega signals have been received ai the following three sites: Xinxiang, Lintong and Urumqi respectively. And at the same time, the chromosphere observation of Urumqi Astronomical Station and the ionosphere surveying of Urumqi vertical ionosonde station were also doing. A total of 36 activities were recorded simultaneously at three sites. Of which most strong events occurred on 15, 16 and 17 of August. Especially, the solar flare of 16, August resulted in interrupt of radio telecommunication via ionosphere, which lasted for more than 4 hours.The paper analizes the ionosphere effect of these flare events by synthetically utilizing VLF observation data of the three sites, the chromosphere data, ionosphere survering data and X-ray data of satellite GOES-7 of U.S.A.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第5期651-656,共6页
Chinese Journal of Geophysics
基金
国家自然科学基金
关键词
太阳
耀斑
电离层效应
观测
Solar flare, VLF phase, Solar X-ray.
