Long-term trends in the ratio of the daytime and nighttime values of foF2

被引：9
作者：
Danilov, A. D. [1 ]
Vanina-Dart, L. B. [1 ]
机构：
[1] Inst Appl Geophys, Moscow 129128, Russia
来源：
GEOMAGNETISM AND AERONOMY | 2007年 / 47卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
94; 20; Ji;
D O I：
10.1134/S0016793207020107
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The consideration of the relation between the daytime and nighttime values of the critical frequency F2, foF2 of the ionospheric F2 layer, started in the previous publication of the authors, is continued. The main regularities in variations in the correlation coefficient R(foF2) characterizing this relation are confirmed using larger statistical material (more ionospheric stations and longer observational series). Long-term trends in the R(foF2) value are found: at all stations the negative value of R(foF2) increases with time after 1980.
引用
收藏
页码：221 / 226
页数：6
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