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Proceedings Paper

Diurnal, seasonal, and interannual differences in the links of probabilities of derivation of different types Es with solar activity
Author(s): Venedict F. Petrukhin; I. V. Poddubnaya; Evgenij A. Ponomarev; Nicolaj A. Sutyrin
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Paper Abstract

The analysis of the ionospheric data on Irkutsk obtained from 1960 to 1996 was made. Was shown, that the link of probabilities of observation of the sporadic derivations in E-region of ionosphere with solar activity (SA) essentially depends on time of day, season and correlation between solar and geophysical parameters. For different types of sporadic derivations this link has different character and with a different image varies with current of time. It is necessary to mark, that the link of night sporadic derivations (Es such as “f”) with solar activity in the summer very high and practically does not vary in time (r=-0.897∓0.04). The temporary course of coefficients of correlation between solar activity and probability of observation of sporadic stratums (r) of a different type varies depending on the season. Further, for stratums of a type “cl” and “l” the change r happens within increase of SA. At the same time, there is an abnormal behavior of height so f sporadic stratums such as “cl”. There is an impression that in a considered time frame there is competition of two factors. One of them - solar activity, which in the norm supports the negative correlation link with frequency of observation and second - a factor of an unknown nature, which has caused evocative anomaly of altitude, becomes dominant above natural negative link.

Paper Details

Date Published: 15 December 2004
PDF: 8 pages
Proc. SPIE 5743, Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, (15 December 2004); doi: 10.1117/12.606301
Show Author Affiliations
Venedict F. Petrukhin, Institute of Solar-Terrestrial Physics (Russia)
I. V. Poddubnaya, Institute of Solar-Terrestrial Physics (Russia)
Evgenij A. Ponomarev, Institute of Solar-Terrestrial Physics (Russia)
Nicolaj A. Sutyrin, Institute of Solar-Terrestrial Physics (Russia)


Published in SPIE Proceedings Vol. 5743:
Eleventh International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gennadii G. Matvienko; Vladimir P. Lukin, Editor(s)

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