Trends in foF2 and the 24th solar activity cycle

被引：15

作者：

Danilov, A. D. ^{[1
]}

Konstantinova, A. V. ^{[1
]}

机构：

[1] Inst Appl Geophys, 9 Rostokinskaya, Moscow 129128, Russia

来源：

ADVANCES IN SPACE RESEARCH | 2020年 / 65卷 / 03期

关键词：

Ionosphere; Long-term trends; Solar activity cycle;

D O I：

10.1016/j.asr.2019.10.038

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The trends in foF2 are analyzed based on the data of Juliusruh and Boulder ionospheric stations. It is shown that using the traditional solar activity index F10.7 leads to an impossible trend in foF2 when the data for the 24th solar activity cycle are included into the analysis. It is assumed that the F10.7 index does not describe correctly the solar ultraviolet radiation variations in that cycle. A correction of this index using the Rz (sunspot number) and Ly (intensity of the Lyman-alpha line in the solar spectrum) is performed, and it is shown that in that case reasonable values of the foF2 trends are obtained. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：959 / 965

页数：7

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