Correlation of mid-latitude airglow characteristics with the state and dynamics of magnetospheric-ionospheric structures during geomagnetic disturbances

Vitaly I. Degtyarev; Nadegda V. Kostyleva; Alexander V. Mikhalev

doi:10.1117/12.548663

23 February 2004 Correlation of mid-latitude airglow characteristics with the state and dynamics of magnetospheric-ionospheric structures during geomagnetic disturbances

Vitaly I. Degtyarev, Nadegda V. Kostyleva, Alexander V. Mikhalev

Author Affiliations +

Proceedings Volume 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics; (2004) https://doi.org/10.1117/12.548663
Event: Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2003, Tomsk, Russian Federation

Abstract

We investigate the atmospheric emission variations at mid-latitudes during geomagnetic disturbances in connection with the state, dynamics and latitudinal displacement of the auroral oval, the main ionospheric trough (MIT), and of the plasmapause. For the location of the ISTP SB RAS Geophysical observatory (52°N, 103°E) there are several types of atmospheric emission variations, corresponding to different levels of geomagnetic disturbance, which are caused by various mechanisms and sources: wave-like fluctuations of 630 nm emission superimposed on the regular night-time behavior, significant enhancements of 630 nm emission that substantially disturb the night-time behavior of this emission, disturbances of 558 nm, 630 nm and 391.4 nm emissions of the auroral type, and SAR-arcs. Magnetospheric and ionospheric structures (plasmasphere, plasmapause, equatorial boundary and MIT center, etc.) that are the sources for or determine the character of atmospheric emission variations, are placed in correspondence with each of the identified types of atmospheric emission variations. It is intended to use the recorded atmospheric emission variations to monitor the ionspheric-magnetospheric structures during moderate and high levels of geomagnetic disturbances.

Citation Download Citation

Vitaly I. Degtyarev, Nadegda V. Kostyleva, and Alexander V. Mikhalev "Correlation of mid-latitude airglow characteristics with the state and dynamics of magnetospheric-ionospheric structures during geomagnetic disturbances", Proc. SPIE 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (23 February 2004); https://doi.org/10.1117/12.548663

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