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- Title
Behavior of Parameters of Enhancements in the Nighttime Electron Concentration in the Ionospheric <italic>F</italic>2 Layer.
- Authors
Yakovets, A. F.; Gordienko, G. I.
- Abstract
We have analyzed the behavior of the <italic>F</italic>2 layer parameters during nighttime periods of enhanced electron concentration by the results of vertical sounding of the ionosphere carried out with five-minute periodicity in Almaty (76°55′ E, 43°15′ N) in 2001-2012. The results are obtained within the frameworks of the unified concept of different types of ionospheric plasma disturbances manifested as variations in the height and half-thickness of the layer accompanied by an increase and decrease of <italic>N</italic><italic>m</italic><italic>F</italic>2 at the moments of maximum compression and expansion of the layer. A good correlation is found between height <italic>h</italic><italic>Am</italic>, which corresponds to the maximum increase, and layer peak height <italic>h</italic><italic>m</italic><italic>F</italic>, while <italic>h</italic><italic>Am</italic> is always less than <italic>h</italic><italic>m</italic><italic>F</italic>. The difference between <italic>h</italic><italic>Am</italic> and <italic>h</italic><italic>m</italic><italic>F</italic> linearly increases with increasing <italic>h</italic><italic>m</italic><italic>F</italic>. Whereas the difference is ~38 km for <italic>h</italic><italic>m</italic><italic>F</italic> = 280 km, it is ~54 km for <italic>h</italic><italic>m</italic><italic>F</italic> = 380 km. Additionally, the correlation is good between the increase in the electron concentration in the layer maximum Δ<italic>N</italic><italic>m</italic> and the maximum enhancement at the fixed height Δ<italic>N</italic>; the electron concentration enhancement in the layer maximum is about two to three times lower than its maximum enhancement at the fixed height.
- Subjects
POLAR regions; IONOSPHERE; ELECTRONS; GEOMAGNETISM; UPPER atmosphere; CYCLES
- Publication
Geomagnetism & Aeronomy, 2018, Vol 58, Issue 1, p83
- ISSN
0016-7932
- Publication type
Article
- DOI
10.1134/S0016793218010164