华南地区电离层闪烁的时空分布特征研究

左小敏; 黄江; 夏淳亮; 徐杰

doi:10.11728/cjss2014.06.802

华南地区电离层闪烁的时空分布特征研究

doi: 10.11728/cjss2014.06.802 cstr: 32142.14.cjss2014.06.802

左小敏^1, ,,
黄江²,
夏淳亮³,
徐杰²

1.
中国地质大学数学与物理学院武汉 430074
2.
广州气象卫星地面站广州 510640
3.
中国地质大学地球物理与空间信息学院武汉 430074

基金项目: 国家自然科学基金项目资助(41004067)

详细信息

通讯作者:

左小敏,zuoxiaomin11@aliyun.com

中图分类号: P352
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出版历程
- 收稿日期: 2013-12-30
- 修回日期: 2014-07-26
- 刊出日期: 2014-11-15

Investigation of Ionospheric Scintillations over South China

1.
School of Mathematics and Physics, China University of Geosciences, Wuhan 430074
2.
Guangzhou Meteorological Satellite Ground Station, Guangzhou 510640
3.
Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074

摘要

摘要: 利用位于赤道异常区的广州(23.17°N, 113.34°E)和茂名(21.45°N, 111.31°E)两台站2011年7月至2012年6月观测到的GPS电离层闪烁数据, 分析比较了这两地电离层闪烁出现的逐月变化及地方时变化和空间分布特征. 结果表明, 中等强度闪烁(S₄ > 0.4)和强闪烁(S₄ > 0.6)的出现均呈现明显季节分布规律, 两站的闪烁活动均表现出春秋强, 冬夏弱的特点, 在时间上主要发生在20:00LT-24:00LT; 从空间分布来看, 两站的闪烁活动在2011年秋季, 闪烁出现的区域比较分散, 而在2012年春季, 主要在两站上空区域出现的闪烁最为频繁.
- 华南地区 /
- 电离层闪烁 /
- S₄指数
Abstract: Data recorded by GPS ionospheric scintillation monitors in Guangzhou (23.17°N, 113.34°E) and Maoming (21.45°N, 111.31°E) stations, which are situated near the northern crest of the equatorial ionosphere anormaly, has been used to study the day-to-day, month-to-month, local time and spatial variation characteristics of ionospheric amplitude scintillation during the period from July 2011 to June 2012. The results show that different intensity of amplitude scintillations has co mmon temporal variation characteristics. The scintillation activities with S₄>0.4 and S₄>0.6 mostly occur from 20:00LT to 24:00LT in spring and autumn. Spatially, scintillations distribute throughout the large region with the latitude from 18° to 27° and the longitude from 109° to 118° for Guangzhou and the latitude from 17° to 26° and the longitude from 107° to 116° for Maoming in the fall of 2011. However, scintillations mainly appear in a small area overhead in the spring of 2012 of both stations.
- South China /
- ionospheric scintillations /
- S₄ index

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参考文献(12)

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