基于GNSS数据的第24太阳活动周中国电离层变化特性分析  

Analysis on the ionospheric variation characteristics in China during the 24th solar cycle based on GNSS data

作　　者：白斌 李新 刘峰华 BAI Bin;LI Xin;LIU Fenghua(Surveying and Mapping Institute of Gansu Geological and Mineral Exploration and Development Bureau,Lanzhou 730064,China;Shandong Zhengwei Surveying and Mapping Co.,Ltd.,Jinan 250000,China)

机构地区：[1]甘肃省地质矿产勘察开发局测绘勘察院,甘肃兰州730064 [2]山东正维勘察测绘有限公司,山东济南250000

出　　处：《经纬天地》2023年第5期96-100,共5页Survey World

摘　　要：本文利用第24太阳活动周中国区域电离层的TEC数据和太阳活动修正参数F10.7p数据,分析了中国区域电离层在24太阳活动周内的变化特性。实验结果表明:总体上,中国区域TEC纬度变化特征显著;时间上,电离层年度异常、半年异常和季节异常非常明显;区域上,中国不同纬度区域电离层变化特性并不相同,中国低纬度区域电离层半年度异常明显,中高纬度区域的半年度异常现象跟太阳活动有关。在太阳活动高年,中国中高纬度区域半年异常显著;太阳活动低年则反之。本文基于太阳活动数据和TEC数据,对中国地区电离层的时空变化特征进行了研究,为中国区域电离层的建模和预测提供参考。The variation characteristics of the ionosphere in China during the 24th solar cycle are analyzed in this article by using both TEC data and solar activity correction parameter F10.7p data.The experimental results indicate that overall the latitude variation characteristics of TEC in China are significant.In terms of time,the annual,semi annual,and seasonal anomalies of the ionosphere are very obvious;regionally,the ionospheric variation characteristics in different latitude regions of China are not the same.The semi annual ionospheric anomalies in low latitude regions of China are significant;while the semi annual anomalies in mid to high latitude regions are related to solar activities.In high solar activity years,the mid to high latitude regions in China exhibit significant anomalies over the past six months.In low years of solar activities,the opposite is true.

关 键 词：第24太阳活动周 电离层 电离层异常 

分 类 号：P3[天文地球—地球物理学]