| 长三角地区电离层变化的GPS监测 |
| |
| 引用本文： | 韩玲[,] 章红平[,] 平劲松 朱文耀.长三角地区电离层变化的GPS监测[J].中国科学院上海天文台年刊,2006(1):33-42. |
| |
| 作者姓名： | 韩玲[ ] 章红平[ ] 平劲松 朱文耀 |
| |
| 作者单位： | 中国科学院上海天文台，中国科学院上海天文台，中国科学院上海天文台，中国科学院上海天文台 上海 200030 中国科学院研究生院，北京 100049，上海 200030 中国科学院研究生院，北京 100049，上海 200030，上海 200030 |
| |
| 基金项目： | Acknowledgements SCGAN data were provided by the Shanghai Sciences. Authors also would like to thank Dr. Astronomical 0bservatory of Chinese Academy of Wang Guangli, Mr. Jian Nianchuan, for their constructive comments on the method of data processing. |
| |
| 摘 要： | 利用GPS双频观测量可获取电离层总电子含量(Total Electron Content,TEC),以监测区域上空电离层的分布和变化特征,从而可以发现不同尺度的电离层异常。该文采用2004年上海地区GPS综合应用网(SCGAN)以及中国地壳运动监测网络(CMONC)的部分台站的观测,计算得到1年时间序列的TEC数据,来研究长三角地区上空的电离层TEC的变化与活动。应用这些数据,综合利用高斯权函数和滑动平均等几种数据处理方法,重点分析和讨论了长三角地区上空电离层的周日变化、周年变化和季节性变化特性,揭示了电离层冬季异常等现象。同时,通过对1年时间序列TEC进行谱分析,得到了其相应的变化周期。
|
| 关 键 词： | GPS／TEC 电离层 周日、周年和季节性变化 绝对／相对TEC |
| 收稿时间： | 12 29 2005 12:00AM |
| 修稿时间： | 03 6 2006 12:00AM |
MONITORING THE IONOSPHERIC TEC VARIATIONS OVER YANGTZE DELTA REGION |
| |
| HAN Ling, ZHANG Hongping, PING Jingsong, Zhu Wenyao.MONITORING THE IONOSPHERIC TEC VARIATIONS OVER YANGTZE DELTA REGION[J].Annals of Shanghai Observatory Academia Sinica,2006(1):33-42. |
| |
| Authors: | HAN Ling ZHANG Hongping PING Jingsong Zhu Wenyao |
| |
| Institution: | 1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030 ; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
| |
| Abstract: | Dual frequency GPS observation can be used to monitor ionospheric Total Electron Content ( TEC) distribution and variation above a region. From the distributive variations of the obtained i-onospheric TEC , ionospheric irregularities of different scales can be investigated. This paper at- tempts to study the variations and actions (activities) of the ionospheric TEC above Yangtze Delta by using a span of one-year series of absolute TEC , which is obtained from Shanghai Comprehensive GPS Application Network (SCGAN) in 2004. From the TEC data, the diurnal, seasonal, annual variations of ionosphere above Yangtze Delta region were analyzed and discussed. Meanwhile, by u-sing several kinds of data processing methods, such as Gauss weight function and running smoothing , the parts of the major trend has been separated from the high frequency changing series. These data can be used for qualitative research of relative variations of ionospheric TEC, so as to reveal the small scale and medium scale ionospheric disturbances. |
| |
| Keywords: | GPS/TEC - Ionosphere - diurnal seasonal annual variations - absolute/ relative TEC |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
