青岛地区电离层Es特征统计分析
Statistical analysis on characteristics of Es in Qingdao region
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摘要:
利用青岛电波环境观测站电离层测高仪2001年至2011年共11年的观测数据,对Es层的季节变化和日变化特征进行了统计分析. 统计结果表明:Es层发生概率与临频的季节变化和日变化为单峰结构,夏季和中午是Es发生最频繁和最强的时间;虚高的季节变化和日变化为双峰结构,季节上以4月份和9月份为主次峰,日变化上以7点和17点为主次峰;Es类型的发生次数从高到低依次为平型、低型、高型和尖型.
Abstract:Using the observation data of ionosonde from year 2001 to 2011 at Qingdao radio environment observatory, a statistical analysis for seansonal and daily variation of sporadic E(Es) is performed. The main results show that, the seasonal and daily variation of occurrence probability are single-peak structure, which summer and midnoon are the most frequent and strong time. The seasonal and daily variation of height are dual-peak structure, which April and September are the primary and JP3secondary peaks in season, while hour 7 and 17 are the peaks in day. The order of occurrence times of Es type from high to low is F, C, L, H.
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