The perturbations of ionospheric parameters during severe meteorological storms
I.V.Karpov1,2 , O.P.Borchevkina1 , R.Z. Dadashev1, A.V.Ilminskaya1
1
Immanuel Kant Baltic Federal University, Kaliningrad, Russia
2
KF IZMIRAN, Kaliningrad, Russia
Observations of variations in the parameters of the ionosphere during periods of cyclone
activity detected gain variation of the ionosphere with periods of 2-20 min. Excitation of these
components of ionospheric variations associated with local meteorological disturbances in the
lower atmosphere. To analyze the state of the ionosphere during periods of weather disturbances
have been selected for the most violent storms in the Kaliningrad region in the last five years that
are not accompanied by geomagnetic disturbances. To characterize the meteorological conditions
we used atmospheric pressure data. The characteristics of the ionosphere above the Kaliningrad
region
determined according vertical sounding of the total electron content (ionospheric
parameters TEC). Results of the analysis of ionospheric observations have shown that during
periods of meteorological disturbances decrease in the amplitude of the diurnal variations TEC,
reaching about 50% in relation to meteorological calm days. The variations in the critical
frequency of the F-region of the ionosphere observed decrease in the amplitude of the diurnal
variations in the ~ 15%, and the emergence periods manifestations F - scattering. Analysis
ionospheric data suggests that the disturbance identified by ionospheric conditions determined by
the local meteorological conditions.