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Proceedings Paper

Variations of 557.7 nm and 630 nm atmospheric emissions in the 23rd solar cycle
Author(s): Alexander V. Mikhalev; Irina V. Medvedeva; Nadezhda V. Kostyleva; Penka Stoeva
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Paper Abstract

We present preliminary analysis of experimental data of the nightglow observation of the atomic oxygen 557.7 nm (emitting layer height is 85-115 km) and 630 nm (180-250 km) lines emissions in the 23-rd solar cycle. The experimental data were obtained at ISTP Geophysical observatory near Irkutsk (52° N, 103° E). The 557.7 nm and 630 nm emissions observational data are compared with atmospheric, solar and geophysical parameters. Generally, the 630 nm emission intensity in the 23-rd solar cycle changed in a phase with the solar cycle, increasing from the period of low solar activity to the period of high solar activity. The difference of correlation coefficient between green line intensity and F10.7 solar radio flux in various phases of the 23-rd solar cycle was marked. During the increasing and maximum phases of the solar cycle the negative correlation between monthly mean values of the 557.7 nm emission intensity and the F10.7 was revealed. The correlation became positive during the descending phase. Broken phase synchronism of 557.7 nm emission behavior and F10.7 during the growth and maximum phase of the 23-rd solar cycle is preliminary interpreted by high sensitivity of the atmospheric parameters determining 557.7 nm emission intensity to atmospheric dynamics and various disturbances including the effects from lower atmospheric layers.

Paper Details

Date Published: 14 February 2008
PDF: 8 pages
Proc. SPIE 6936, Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 69361C (14 February 2008); doi: 10.1117/12.783531
Show Author Affiliations
Alexander V. Mikhalev, Institute of Solar-Terrestrial Physics (Russia)
Irina V. Medvedeva, Institute of Solar-Terrestrial Physics (Russia)
Nadezhda V. Kostyleva, Institute of Solar-Terrestrial Physics (Russia)
Penka Stoeva, Solar-Terrestrial Influences Lab., Acad. D. Mishev (Bulgaria)


Published in SPIE Proceedings Vol. 6936:
Fourteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics

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