A Prediction Method for △f_0F_(2min) of a Single Station From Interplanetary Parameters Based on Statistical Study  

作　　者：LI Zheng WEI Fengsi FENG Xueshang GUO Jianpeng XU Xiaojun 

机构地区：[1]State Key Laboratory of Space Weather,Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing 100190 [2]Graduate University of the Chinese Academy of Sciences,Beijing 100049

出　　处：《空间科学学报》2012年第3期312-320,共9页Chinese Journal of Space Science

基　　金：Supported by the National Natural Science Foundation of China(40890162,40704030,40674084);the Specialized Research Fund for State Key Laboratories

摘　　要：Using 86 CME-interplanetary shock events,the correlation between the peak values of (a) the solar wind parameters(B_z,E_y,P_(dyn)) and the geomagnetic indices(SYM-H,ASY-H,Kp), (b) the coupling functions(Borovsky,Akasofu,Newell) and the geomagnetic indices,(c) the solar wind parameters/coupling functions/geomagnetic indices and the ionospheric parameter(Δf_0F_(2min)), are investigated.The statistical results show that in group(a),B_(z min) and SYM-H_(min) have the best correlation,that in group(b),the best correlation is between the peak values of Akasofu function (A_(min)) and SYM-H_(min),and that in group(c),the best correlation is between K_(pmax) andΔf_0F_(2min). Based on the statistical results,a method for predicting f_0F_2 of a single station is attempted to be set up.The input is modified B_(z min) and the outputs are SYM-H_(min) andΔf_0F_(2min).Then 25 CME-IPS events that caused geomagnetic storms in 1998 and 2009 are used to check the prediction method. The results show that our method can be used to predict SYM-H_(min) andΔf_0F_(2min).Using 86 CME-interplanetary shock events,the correlation between the peak values of （a） the solar wind parameters（Bz,Ey,Pdyn） and the geomagnetic indices（SYM-H,ASY-H,Kp）, （b） the coupling functions（Borovsky,Akasofu,Newell） and the geomagnetic indices,（c） the solar wind parameters/coupling functions/geomagnetic indices and the ionospheric parameter（△f0F2min）, are investigated.The statistical results show that in group（a）,Bz min and SYM-Hmin have the best correlation,that in group（b）,the best correlation is between the peak values of Akasofu function （Amin） and SYM-Hmin,and that in group（c）,the best correlation is between （pmax and △f0F2min）. Based on the statistical results,a method for predicting f0F2 of a single station is attempted to be set up.The input is modified B_（z min） and the outputs are SYM-Hmin and △f0F2min.Then 25 CME-IPS events that caused geomagnetic storms in 1998 and 2009 are used to check the prediction method. The results show that our method can be used to predict SYM-Hmin and △f0F2min

关 键 词：行星际激波 统计 预报方法 单站 最小距离 基础 地磁指数 电离层参数 

分 类 号：P353.8[天文地球—空间物理学] P457.6[天文地球—地球物理学]