摘要
为探究低纬地区L波段电离层闪烁对赤道异常特征的响应,利用澳大利亚Darwin、Weipa、Willis Island三个站点的L波段闪烁观测数据,结合中国科学院提供的全球电离层VTEC数据,在磁平静条件下研究3个低纬度站点电离层闪烁与VTEC赤道异常的响应关系。结果表明,3个站点对应的电离层闪烁响应与赤道异常特征呈显著正相关;闪烁日对应的电离层VTEC峰谷差值及峰谷比增大、梯度变化加剧。该研究揭示了响应机制,并讨论了VTEC及梯度与闪烁的相关性,对实现闪烁现象的快速识别与判断和GNSS工程应用有一定意义。
To investigate the response of L-band ionospheric scintillation to equatorial anomaly characteristics in low-latitude regions,this study utilizes L-band scintillation observation data from three Australian stations(Darwin,Weipa,and Willis Island)combined with global ionospheric VTEC data provided by the Chinese Academy of Sciences(CAS).The study examines the relationship between ionospheric scintillation and VTEC equatorial anomalies under geomagnetically quiet conditions.Results show a significant positive correlation between ionospheric scintillation and equatorial anomaly characteristics at the three stations.On scintillation days,the ionospheric VTEC peak-to-valley difference,peak-to-valley ratio increase,and gradient changes are more pronounced.This paper reveals the response mechanism and investigates the correlation between VTEC and its gradients with scintillation,which is significant for the rapid identification and judgment of scintillation phenomena and for GNSS engineering applications.
作者
韩蔡生龙
黄玲
李文文
刘钝
刘旭
章红平
HAN Caishenglong;HUANG Ling;LI Wenwen;LIU Dun;LIU Xu;ZHANG Hongping(College of Geomatics and Geoinformation,Guilin University of Technology,319 Yanshan Street,Guilin 541006,China;Guangxi Key Laboratory of Spatial Information and Geomatics,319 Yanshan Street,Guilin 541006,China;GNSS Research Center,Wuhan University,129 Luoyu Road,Wuhan 430079,China;The 22nd Research Institute,China Electronics Technology Group Corporation,36 East-Xianshan Road,Qingdao 266107,China)
出处
《大地测量与地球动力学》
北大核心
2025年第9期983-990,共8页
Journal of Geodesy and Geodynamics
基金
广西自然科学基金(2020GXNSFBA159033)
广西科技基地和人才专项(桂科AD19245060)
广西空间信息与测绘重点实验室基金(19-050-11-24)
国家自然科学基金(42064002)
桂林理工大学科研启动基金(GUTQDJJ2019139)。
关键词
电离层闪烁
赤道异常
VTEC
低纬地区
卫星导航
ionospheric scintillation
equatorial anomaly
VTEC
low-latitude region
satellite navigation
作者简介
第一作者:韩蔡生龙,硕士生,主要研究方向为GNSS空间环境学,E-mail:2799077092@qq.com;通讯作者:黄玲,副教授,主要研究方向为GNSS电离层与精密定位,E-mail:linghuang@glut.edu.cn。
