靳婷婷,丁克良,王喜江,刘明亮,鲍东东

• 1:北京建筑大学
• 2:中国地质大学

摘要(Abstract)：

为了研究分析京津冀地区的电离层时空变化特性,为本地区提供高精度导航定位和授时(PNT)服务,该文以国际GNSS服务(IGS)中心提供的2000—2018年的全球电离层总电子含量(TEC)格网模型产品数据为基础,研究该区域电离层时空分布特性及太阳活动与电离层的相关性。结果表明:电离层TEC与F10.7指数相关系数为0.83,与太阳黑子数相关系数为0.78,与太阳活动呈现出高度相关性;京津冀地区TEC每日最大值出现在UTC4时左右,电离层TEC具有较明显的27 d周期特性,在太阳活动高年及TEC极大递减年会出现冬季异常现象;白天,同一经度TEC值随纬度的升高而降低;同一纬度TEC值随经度的升高没有明显变化。

关键词(KeyWords)： 电离层TEC;时空特性;冬季异常;太阳活动

Abstract:

Keywords:

基金项目(Foundation): 北京市教委科研计划项目(KM201810016012);; 中国建设教育协会2017年度教育教学科研课题项目(2017020)

作者(Author): 靳婷婷,丁克良,王喜江,刘明亮,鲍东东

DOI: 10.16251/j.cnki.1009-2307.2020.08.009

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