中国西部及周边区域电离层暴的统计特性

利用中国西部及周边9个电离层观测台站的历史数据,修正了统计研究中电离层暴事件的提取方式,在此基础上分析了区域内电离层暴的统计规律.研究表明,区域内以正暴为主,大暴主要发生在喷泉效应起作用的区域;多数台站冬季多正暴,夏季多负暴,春秋季二者相当,但在个别台站有较大差异;暴的起始时间主要分布于日落后,且在不同纬度略有差别.

Statistic Characteristics of Ionospheric Storms in West China and the Adjacency

The historic data from 9 ionospheric observatories in West China and the adjacency were used to study the regional characteristics of ionospheric storms, where the extraction method of the storm events mainly used in statistical studies was improved. It was found that positive events were predominant in this area, and the intense storms usually happen where the so called fountain effect acting. The storms are mainly positive in winter, negative in summer, and both in equinox in most observatories, while staggered individually. It was also found that the start time of the storms mainly concentrated after sundown, while differs in different latitudes weakly.