Features of the Behavior of Ionospheric Parameters В0 and В1 in the High-Latitude Zone

Аннотация

The climatological features and behavior of the parameters B0_Neh_I, B1_Neh_I found from N(h) profiles calculated by the curves from the virtual heights during disturbances are studied based on data from the Norilsk station for 2003–2012. There is a greater similarity with the behavior in other latitudinal zones in that the values of B0_Neh_I are higher in summer than in winter and in years of active sun. The B1_Neh_I values are minimal in summer and maximal in winter; the scatter is from 1.3 to 3. Comparison with the IRI-2016 model showed relative deviations of the model values of B0_IRI_A from B0_Neh_I for B0_Neh_I by up to 100% in winter and 10–40% in summer. The winter values were 15–40% and the summer values were 8–50% for the parameter B1_Neh_I. Unlike other zones, the correlation coefficients between B0_Neh_I and the height of the hmF2 maximum, as well as those between B0_Neh_I and the equivalent slab thickness of the ionosphere τ, are lower. There are several types of reaction by the parameters TEC, foF2, B0_Neh_I, and B1_Neh_I to disturbances that, as a first approximation, can be represented as a table of five groups. In most cases, B0_Neh_I increases during disturbances, and B1_Neh_I decreases. The results were not found to depend on the disturbance level. There are large data gaps during disturbances. The total electron content (TEC) of the ionosphere is used to determine the sign of a disturbance.