| 东亚赤道异常区电离层CT诊断──实验及初步结果 |
| |
| 引用本文： | 徐继生,马淑英,阳其罕,田茂,霍泰山,叶公节,叶惠卿.东亚赤道异常区电离层CT诊断──实验及初步结果[J].地球物理学报,1995,38(5):553-563,T001. |
| |
| 作者姓名： | 徐继生 马淑英 阳其罕 田茂 霍泰山 叶公节 叶惠卿 |
| |
| 作者单位： | 1. 武汉大学空间物理系, 武汉 430072;
2. 台湾中山大学工学院，台湾高雄;
3. 台湾中央大学太空科学研究所, 台湾中坜;
4. Deportment of ECE, University of Illinois at Urbana-Champaign, IL 61801, USA |
| |
| 摘 要： | 国际上第一个低纬电离层层析（ＣＴ）探测台链于１９９３年１１月建成，并开始数据采集．该ＣＴ台链沿１２０°Ｅ子午圈由６个卫星信标差分多普勒接收站组成，北起我国上海，南至菲律宾的马尼拉，纬度覆盖范围约２０°．该台链专为电高层赤道异常区电子密度大尺度结构ＣＴ成像而设计，其目的是监测研究赤道异常形态与动力学、电离层等离子体泡、行优以及暴时磁层－电离层－热层耦合过程等重要的赤道与低纬区电离层现象．本文介绍该低纬电离层ＣＴ实验的有关技术问题，包括接收台站布设、实验设备、数据采集软件和数据预处理方法．文中还给出利用ＣＴ技术，由实测斜电子含量数据反演电离层电子密度二维分布图像的几个实例．结果表明，利用低纬电离层ＣＴ台链可以有效地监测电离层赤道异常及其它低纬电高层电子密度大尺度结构的时空变化．
|
| 关 键 词： | 电离层 赤道异常 电离层层析成像 卫星信标 差分多普勒 |
| 收稿时间： | 1995-01-26 |
TOMOGRAPHIC DIAGNOSIS OF THE IONOSPHERIC EQUATORIAL ANOMALY IN THE REGION OF EAST-ASIA──EXPERIMENT AND EARLY RESULTS |
| |
| Xu Jr-SHENG,MA SHU-YING, YANG QI-HAN, TIAN MAO ,HUO TAI-SHAN.TOMOGRAPHIC DIAGNOSIS OF THE IONOSPHERIC EQUATORIAL ANOMALY IN THE REGION OF EAST-ASIA──EXPERIMENT AND EARLY RESULTS[J].Chinese Journal of Geophysics,1995,38(5):553-563,T001. |
| |
| Authors: | Xu Jr-SHENG MA SHU-YING YANG QI-HAN TIAN MAO HUO TAI-SHAN |
| |
| Institution: | 1. Department of Space Physics, Wuhan University, Wuhan 430072;
2. College of Engineering, Sun Yat-Sen University, Kaohsiung, Taiwan;
3. lnstitutc of Space Scicnce, Central University, Chung-Li, Taiwan;
4. Department of ECE, University of Illinois at Urbane-Champaign, IL 61801, USA |
| |
| Abstract: | The first Station-chain of Equatorial and Low-latitude Ionospheric Tomography（SELIT）along 120°E meridian has been operating since November,1993.SELIT consists of six NNSS differential Doppler receiving stations which span about 20°latitude range from Manila to Shanghai,and it is specifically designed to enable tomographic imaging of electron density large-scale structure in the region of ionospherlc equatorial anomaly.The scientific objectives of this tomography experiment are to investigate the important phenomena in the equatorial and low-latitudinal ionosphere, such as the morphology and dynamics of the equatorial anomaly,ionospheric plasma bubbles,TIDs and the magnetosphere-ionosphere-thermosphere coupling during magnetic storms.In this paper,station distribution,experiment equipment, data acquisition software and data Pre-treatment method are introduced,respectively.Sevelal CT reconstruction examples are also presented,which give the 2-Dimaging of electron density distribution obtained from the observed TEC data by means of computerized tomography technique.The results demonstrate that the SILET is very useful and effective to investigate the equatorial and low-latitudinal ionospheric structures and dynamics. |
| |
| Keywords: | Ionosphere equatorial anomaly Ionospheric computerized tomogra phy Satellite beacon Differential Doppler measurement |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
|
