Variations of effective heights of ionospheric layers over East Siberia during 1960-1996

Victor D. Kokourov; Venedict F. Petrukhin; Evgenij A. Ponomarev; Nicolaj A. Sutyrin

doi:10.1117/12.497336

28 March 2003 Variations of effective heights of ionospheric layers over East Siberia during 1960-1996

Victor D. Kokourov, Venedict F. Petrukhin, Evgenij A. Ponomarev, Nicolaj A. Sutyrin

Proceedings Volume 5027, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics; (2003) https://doi.org/10.1117/12.497336
Event: Ninth Joint International symposium on Atmospheric and Ocean Optics, 2002, Tomsk, Russian Federation

Abstract

Based on results derived from analyzing ioniospheric radio sounding data over Irkutsk, it is show that characteristics of climatic trends are seriously influenced by variations with periods of about 8 years. These variations can lead to a disturbance of the connection of ionospheric F-layer formation heights with solar activity. The origin of these variations is unclear to date. When such variations arise, there is an increase in the connection between variations of the formation heights of the F-layer and sporadic layers. An indicator of the occurrence of variations with an 8-year period is provided by the lowering of the formation heights of sporadic Es-layers, with sporadic structures of type 'c' and 'l' coexisting on the ionogram.

Citation Download Citation

Victor D. Kokourov, Venedict F. Petrukhin, Evgenij A. Ponomarev, and Nicolaj A. Sutyrin "Variations of effective heights of ionospheric layers over East Siberia during 1960-1996", Proc. SPIE 5027, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (28 March 2003); https://doi.org/10.1117/12.497336

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