The dynamic regime of the ionospheric E-region as observed at Irkutsk

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

doi:10.1117/12.548655

23 February 2004 The dynamic regime of the ionospheric E-region as observed at Irkutsk

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

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/10.1117/12.548655
Event: Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2003, Tomsk, Russian Federation

Abstract

Presented are the results derived from analyzing the observations of horizontal ionospheric drifts at the ionspheric E-region heights. The observations were made during 1958-1982 using the method of spaced receivers at vertical-incidence radio soundings. The observational data were analyzed separately for the regular E-layer and for the sporadic Es-layer. The complex character of the dynamic regime in this region of space is emphasized. Inspection of the data suggests that the sporadic Es-features are fully involved in the drifts of regular layers. The difference of the horizontal drift parameters implies that for the regular E-layer the north-eastern directions occur by 0-15% more frequently when compared with the drifts of the sporadic Es-layer. It is pointed out that with increasing geomagnetic activity, there is an increase of the probability of the north-eastward transport. The mean value of the modulus of the drift velocity vectory in different directions is 100-110 m/s. The azimuth of the drift velocity vector changes clockwise on a diurnal scale. In this case the prevailing drift directions differ both in seasons and in the dayside and nightside ionosphere.

Citation Download Citation

Venedict F. Petrukhin, Evgenij A. Ponomarev, Victor D. Kokourov, and Nicolaj A. Sutyrin "The dynamic regime of the ionospheric E-region as observed at Irkutsk", 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/10.1117/12.548655

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