Improved IRI predictions for the GEOSAT time period

被引：21

作者：

Bilitza, D

Bhardwaj, S

Koblinsky, C

机构：

[1] NSSDC, GSFC, HSTX, Greenbelt, MD 20771 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

QUANTITATIVE DESCRIPTION OF IONOSPHERIC STORM EFFECTS AND IRREGULARITIES | 1997年 / 20卷 / 09期

关键词：

D O I：

10.1016/S0273-1177(97)00585-1

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Single-frequency altimeter measurements require an estimate of the signal retardation effect in the ionosphere. Ionospheric models like the International Reference Ionosphere (IRI) are being used to obtain these correction factors. Incorporation of worldwide ionosonde measurements is discussed as a way towards more accurate predictions. Using measurements of the F peak critical frequency (foF2) from more than 70 ionosondes we have derived (hour and month dependent) regional and global ionospheric-effective solar indices. Replacing the solar index in IRI with these new indices we could improve the IRI estimates for the GEOSAT time period (1986-1989) by a few percent. (C) 1997 COSPAR. Published by Elsevier Science Ltd.

引用

页码：1755 / 1760

页数：6