海南三亚地区S_4指数与C/N、ROTI的比较分析
A comparison and analysis of the S_4 index, C/N and ROTI over Sanya
查看参考文献19篇
文摘
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本文通过利用海南三亚站(18.34°N,109.62°E)GPS闪烁/TEC接收机2004年8月到2005年7月间观测数据,在对三亚地区闪烁初步统计分析的基础上,比较分析了观测数据中S4(幅度闪烁指数)和C/N(载噪比),S_4和ROTI(TEC变化率标准差)的关系,同时对2004年11月7目的闪烁事件进行了具体的分析.通过比较分析得出:(1)三亚地区全年的闪烁强度具有明显的半年变化,在春秋季出现全年闪烁强度的最大值;(2)S4与C/N具有很好的负相关性;(3)ROTI可以作为由小尺度不规则结构引起闪烁出现的指示剂. |
其他语种文摘
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Using the data received by GPS scintillation/TEC receiver at Sanya station in Hainan province during August,2004-July,2005,we made some comparison and analyses of the S_4(the amplitude scintillation index),C/N(Carrier to Noise) and ROTI(the standard deviation of the change rate of TEC).We also analyzed the scintillation on 7 November 2004 in detail.From the comparison and analysis,we concluded as follows:(1) the scintillation strength of one year has a semiyearly periods,the maximum scintillation strength of one year appears in spring and autumn;(2) the S_4 and C/N have a good negative correlation;(3) ROTI can be regarded as an indicator of the present of scintillation causing small-scale ionospheric irregularities.
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来源
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地球物理学报
,2007,50(6):1639-1648 【核心库】
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关键词
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GPS
;
闪烁
;
电子浓度总含量
;
载噪比
;
S_4
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地址
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1.
中国科学院地质与地球物理研究所, 北京, 100029
2.
中国科学院光电研究院, 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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0001-5733 |
学科
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地球物理学 |
基金
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中国科学院知识创新工程重要方向项目
;
国家自然科学基金
;
国家973计划
;
华北电力大学青年教师科研基金
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文献收藏号
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CSCD:3038728
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19
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