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| 2009年7月22日日全食期间电离层总电子含量变化研究 | |
| 引用本文： | 莫晓华,张东和,覃健生,叶锦凤,萧佐.2009年7月22日日全食期间电离层总电子含量变化研究[J].空间科学学报,2012,32(3):336-342. |
| 作者姓名： | 莫晓华 张东和 覃健生 叶锦凤 萧佐 |
| 作者单位： | 1. 北京大学地球与空间科学学院,北京100871／广西民族大学物理与电子工程学院,南宁530006 2. 北京大学地球与空间科学学院,北京,100871 3. 广西民族大学物理与电子工程学院,南宁,530006 |
| 基金项目： | 国家自然科学基金项目资助 |
| 摘 要： | 利用中国区域内五个GPS台站(一个台站处于日全食区域、四个台站处于日偏食区域)观测数据,研究2009年7月22日日全食期间电离层总电子含量(TEC)的变化,结果表明,日全食期间,电离层TEC值经历了下降和恢复的过程,最小TEC相对于最大食偏的时间延迟约为1～10 min;台站测得最小TEC的星下点(IPP)越靠近日全食带TEC下降量越大,在日食期间武汉站(114.35°E,30.53°N)TEC相对于各参考日期的TEC,其平均下降量最大,达到4.58TECU. |
| 关 键 词： | 日全食 GPS 总电子含量(TEC) |
Study on the Ionospheric TEC Variations During the Total Solar Eclipse of July 22,2009 |
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| MO Xiaohua,ZHANG Donghe,QIN Jiansheng,YE Jinfeng,XIAO Zuo.Study on the Ionospheric TEC Variations During the Total Solar Eclipse of July 22,2009[J].Chinese Journal of Space Science,2012,32(3):336-342. | |
| Authors: | MO Xiaohua ZHANG Donghe QIN Jiansheng YE Jinfeng XIAO Zuo |
| Institution: | 1(Department of Geophysics,Peking University,Beijing 100871) 2(College of Physics and Electronic Engineering,Guangxi University for Nationalities,Nanning 530006) |
| Abstract: | Variations of the ionospheric Total Electron Content(TEC) during the total solar eclipse of July 22,2009 was investigated using GPS observed data obtained at five GPS stations(one is in total solar eclipse region,the others are in partial solar eclipse region) in China region.Results indicate that during the total solar eclipse,TEC experiences a decline and recovery process;the delay of a minimum level of TEC with respect to the maximum phase of the eclipse is about 1～10min;the Ionosphere Pierce Point(IPP) of minimum TEC is closer to total solar eclipse region,the decrease of TEC is larger,and during the total solar eclipse,the mean decay TEC compared to the TEC on reference date above WUHN station(114.35°E,30.53°N) is the maximum,reaching 4.58 TECU. |
| Keywords: | Total solar eclipse GPS Total Electron Content(TEC) |
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