The use of a continuous function to approximate seasonally-cyclic ion composition variations described by the International Reference Ionosphere, IRI

被引：0

作者：

Shchepkin, LA ^{[1
]}

Kushnarenko, GP ^{[1
]}

Kuznetsova, GM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solar Terr Phys, Irkutsk 664033, Russia

来源：

NINTH JOINT INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS/ATMOSPHERIC PHYSICS, PT II: LASER SENSING AND ATMOSPHERIC PHYSICS | 2003年 / 5027卷

关键词：

International Reference Ionosphere; ion composition;

D O I：

10.1117/12.497352

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The IRI model provides a step-like dependence of the relative ion composition over an annual cycle which is determined by three seasons. Variations over a cycle of solar activity are given only for two steps of low and high activity. We suggest an approximation of seasonally-cyclic variations in relative content of molecular ions to give a smooth continuous dependence on the day of the year and on the index of solar activity F-10.7.

引用

页码：378 / 383

页数：6