Geomagnetic pulsations associated with solar тerminators near Kharkiv city. 2. Statistical analysis

Heading: 
Space and Atmospheric Physics
1Chernogor, LF, 2Shamota, MA
1V.N. Karazin National University of Kharkiv, Kharkiv, Ukraine
2V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
Kosm. nauka tehnol. 2009, 15 ;(6):14-19
https://doi.org/10.15407/knit2009.06.014
Publication Language: Russian
Abstract: 
The statistical analysis of quasi-periodic perturbations produced by solar terminator passage was performed and the main perturbation features were established. The dawn terminators are determined to be associated with perturbations showing delays of Δt1 ≈ 30‒40 min and of Δt2 ≈ 80‒87 min. The perturbations are wave trains with a duration of 45‒50 min and a period of 9‒11 min. The dusk terminators are determined to be associated with perturbations showing delays of Δt ≈ 60‒80 min, periods equal to approximately 9‒11 min, and durations of 50‒60 min. The reference data acquired during quiet time were subjected to the same analysis, which confirmed that the perturbations are associated with the terminators.
Keywords: quasi-periodic perturbations, statistical analysis, terminator
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