科技创新与应用2025，Vol.15Issue(14)：16-20,5.DOI:10.19981/j.CN23-1581/G3.2025.14.004
中低纬度地区电离层foF2在第24个太阳活动周期与太阳活动的关系
摘要
Abstract
Based on the daily hourly observation data of foF2 during the 24th solar activity cycle(2009-2019)from three ionospheric observation stations in China,the frequency variation laws of the F2 layer(foF2)and its relationship with the solar activity index were studied.It was found that the dependence of foF2 on sunspot number(R)and solar radio flux at 10.7 cm wavelength(F10.7)is strongest during the solar middle and weakest during the solar high years.Using the mutual information method in information theory,the long-term change trends of foF2,R and F10.7 are analyzed.The results show that the sunspot number(R)is more suitable to describe the long-term trend of foF2 in the 24th solar activity in China.关键词
电离层/F2层/F2临界频率/太阳活动指数/太阳活动周Key words
ionosphere/F2 layer/F2 critical frequency/solar activity index/solar activity cycle分类
电子信息工程引用本文复制引用
许容基..中低纬度地区电离层foF2在第24个太阳活动周期与太阳活动的关系[J].科技创新与应用,2025,15(14):16-20,5.基金项目
外协合作项目(HZY23102) （HZY23102）
