Investigating Long-Range Ionospheric Radiolines by Analyzing Maximum Observed Frequencies Daily Variances

Author

Ivanov, Vladimir A. ; Loc, Luong Viet ; Nasyrov, Albert M. ; Ryabova, Natalia V.

Author_Institution

Mari El State Tech. Univ.

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

1

Lastpage

4

Abstract

This work presents the method of dividing maximum observed frequencies (MOF) daily variances (DV) into regular and remaining components. The MOF DV remaining component (or the remaining component) is found to have random characteristics. Analyzing the standard deviation (delta) daily variance of remaining component (the delta-daily variance) in relationship with geomagnetic activity level simultaneously in different long-range ionospheric radiolines points out a new method to determine the influence of geomagnetic storms and ionospheric disturbances on diverse geographical regions. The "sunrise-sunset effect" in the frequency domain of remaining component is introduced

Keywords

ionospheric disturbances; ionospheric electromagnetic wave propagation; magnetic storms; radiowave propagation; diverse geographical regions; frequencies daily variances; geomagnetic activity; geomagnetic storms; ionospheric disturbances; long-range ionospheric radiolines; maximum observed frequencies; standard deviation; sunrise-sunset effect; Analysis of variance; Electrons; Filtering; Frequency conversion; Frequency domain analysis; Geomagnetism; Ionosphere; Random processes; Storms; Sun;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2005. ICECom 2005. 18th International Conference on

Conference_Location

Dubrovnik

Print_ISBN

953-6037-44-0

Type

conf

DOI

10.1109/ICECOM.2005.204923

Filename

1613430