新版亚大地区F_2电离层频率预测方法  

A New Method of Predicting the Ionospheric F_2 Layer in the Asia Oceania Region

作　　者：曹红艳[1] 孙宪儒[1] 

机构地区：[1]中国电波传播研究所电波环境特性及模化技术国家重点实验室,青岛266107

出　　处：《空间科学学报》2009年第5期502-507,共6页Chinese Journal of Space Science

基　　金：国家自然科学基金项目(60771049);国家基础研究项目(6137602002);预先研究项目(513070204)共同资助

摘　　要：新版亚大地区F_2电离层频率预测方法根据电离层参量与太阳黑子数12个月流动平均值(R_(12))的互相关原理,使用R_(12)代替了由重庆F_2层临界频率导出的电离层指数Ic,减小了R_(12)转换为Ic时的误差;并在原亚大地区F_2电离层频率预测方法的基础上审慎地选择并增补了一些探测站的大量数据,不再使用三组不同R_(12)值的B系数去插值,避免了中间环节所带来的插值误差。并对几种不同方法的预测结果进行了比较,结果显示新版本的预测精度较高。The new method of predicting the ionospheric F2 layer in the Asia Oceania region is based on cross-correlation theory of ionospheric parameters and the twelve-month running mean of sunsport number （R12）. The R12 is substituted for the ionospheric prediction index Ic produced from foF2 of Chongqing, and the B coefficients interpolated by three different R12 data are not used, which can reduce the error caused by converting R12 into Ic. Lots of data at several sounding stations have been prudently selected and suplemented based on the old predicting method, and the B coefficients needn＇t be computed any more, which can avoid interpolation error resulting from the intermediate link. A comparison of several predicting results shows that the new edition is much more accurate.

关 键 词：频率预测 亚大地区 R_12 IC f_0F_2 M(3000)F_2 

分 类 号：P352[天文地球—空间物理学]