海南地区电离层Es特性研究
Investigation on Properties of Ionospheric Es Layer in Hainan Region
查看参考文献14篇
文摘
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利用中国科学院空间科学与应用研究中心海南电离层观测站DPS-4电离层测高仪2002年3月至2005年2月的观测数据,对太阳活动下降期间海南地区上空发生的偶发E层(Es)的逐年变化和季节变化进行了统计分析.主要结果表明,在这3年中海南地区Es事件出现次数逐年增加; Es_r,Es_q出现最频繁,其次是Es_r,而Es_c和Es_f出现次数较少,出现次数最少的是Es_h;Es事件在夏季出现最为频繁,秋季和冬季次之,春季最为稀少;各季节不同类型Es事件的出现率也不同,其中Es_l和Es_q一般在各季节占主导地位,Es_r其次, Es_c,Es_f和Es_h出现次数较少,尤其是Es_f在秋季几乎没有出现.这些结果对于进一步研究Es产生的物理机制提供了探测基础,同时对于电离层空间天气预报模型的建立也具有重要的意义. |
其他语种文摘
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Using the observation data (Mar. 2002-Feb. 2005) from DPS-4 at Hainan ionospheric station, a statistic analysis for sporadic-E (Es) occurrence frequency in Hainan region in the descending phase of solar cycle has been performed. The seasonal variation and annual variation of occurrence of Es are mainly studied. The results show that, in the three years, Es occurrence in Hainan region is increasing with year. Es_l and Es_q occurs most frequently, next is Es_r, then, Es_c and Es_f occurs lesser, ES_h occurs least. Es occurs most frequently in Summer, secondly in Autumn and Winter, and most infrequently in Spring. Different type of Es has different properties, such as Es_1 and Es_q occurs almost every season, next is Es_r, then, Es_c, Es_f and ES_h occurs infrequently in any season, particularly, Es_f almost disappears in Autumn. These results provide observation evidence for studying the physics mechanism of the ionospheric irregularity, it is also important to establish space weather predicting model on ionosphere. |
来源
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空间科学学报
,2007,27(3):198-203 【核心库】
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关键词
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海南地区
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偶发E层(Es)
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逐年变化
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季节变化
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地址
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中国科学院空间科学与应用研究中心中国科学院, 空间天气学国家重点实验室, 北京, 100080
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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0254-6124 |
学科
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地球物理学 |
基金
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国家自然科学基金项目
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中国科学院创新团队国际合作伙伴计划
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文献收藏号
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CSCD:2866245
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