摘要
利用IGS的126个观测站双频GNSS观测资料和电离层层析成像技术,重构了2005-06-10电离层电子密度随纬度、经度和高度的三维时空变化规律。研究了低纬度地区电离层电子密度分布的周日变化规律和垂直结构特性,分析了赤道异常结构南北驼峰的形成、发展和消亡过程,讨论了影响电离层电子密度反演精度的因素。
3 D temporal-spatial variation regularity of ionospheric electron density were reconstructed by using the ionospheric tomography technique for the GNSS data of 126 stations on 10 June ,2005. The diurnal variation regu- larity of ionospheric electron density distribution and variation characteristics of the ionospheric vertical structure in low-latitude region were investigated and the prosess of occurrence, development and disappearance of the equatorial anomaly structure were carefully analyzed. The factors that impact the accuracy of ionospheric electron density were discussed, and some suggestions were given for further investigation of ionospheric tomography technique.
出处
《大地测量与地球动力学》
CSCD
北大核心
2014年第6期72-75,共4页
Journal of Geodesy and Geodynamics
基金
湖南省杰出青年基金项目(14JJ1021)
国家自然科学基金项目(41174001
41174015)
教育部科学技术类项目(213028A)
湖南省教育厅重点项目(12A002)
关键词
电离层
层析
赤道异常
电子密度
ionosphere
tomography
equatorial anomaly
electron density
