宝鸡地区电离层TEC的变化特征研究  

Variation characteristics of ionospheric TEC in Baoji region

作　　者：王建平 WANG Jian-ping(Institute of Physics and Optoelectronic Technology,Baoji University of Arts and Sciences,Baoji 721016,Shaanxi,China)

机构地区：[1]宝鸡文理学院物理与光电技术学院,陕西宝鸡721016

出　　处：《宝鸡文理学院学报（自然科学版）》2024年第2期61-66,共6页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：陕西省科技厅项目(2023-JC-YB-008);宝鸡文理学院教改项目(ZK2017023)。

摘　　要：目的 分析宝鸡地区电离层TEC的日变化和季节变化特征。方法 通过统计太阳极大年(2014年)和极小年(2019年)的GNSS TEC数据,以及与IRI 2016模型对比,分析宝鸡地区电离层TEC的变化特征。结果 除了极大年的夏季,其他季节的日变化都类似正弦变化,在太阳极大年,电离层TEC随季节单调下降,而在太阳极小年,电离层TEC夏季最大,冬季最小。结论 宝鸡地区电离层TEC存在显著的日变化和季节变化特征,可为电波信号通过电离层的时间延迟修正提供一定的参考。Purposes—To analyze the diurnal and seasonal variation characteristics of ionospheric TEC in Baoji region,Shaanxi,China.Methods—GNSS TEC data in solar maximum(2014)and minimum(2019)are analyzed in a statistical manner and compared with the IRI 2016 model to analyze the characteristics of ionospheric TEC variations in the Baoji region.Results—The diurnal variation is similar to sinusoidal variation in all seasons except for the summer of the solar maximum.Ionospheric TEC decreases monotonically with the season in solar maximum,while in solar minimum it is maximum in summer and minimum in winter.Conclusions—There are significant diurnal and seasonal variation characteristics of ionospheric TEC in the Baoji region,which can provide some references for the corrective time delay of radio wave signals through the ionosphere.

关 键 词：电离层TEC 日变化 季节变化 

分 类 号：P352[天文地球—空间物理学]