The dynamics of ionosphere disturbance level during 94-04 and its response to a global leap of geophysical parameters at 1997

Ilya Edemskiy

doi:10.1117/12.2288464

30 November 2017 The dynamics of ionosphere disturbance level during 94-04 and its response to a global leap of geophysical parameters at 1997

Ilya Edemskiy

Author Affiliations +

Proceedings Volume 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 104667H (2017) https://doi.org/10.1117/12.2288464
Event: XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2017, Irkutsk, Russian Federation

Abstract

The paper is dedicated to analysis of total electron content (TEC) dynamics over the decade of 1994-2004. The analysis is made by calculation of vertical TEC disturbances index (W_TEC index) for more than 20 stations in Northern Hemisphere. The calculation procedure allows us to obtain long series of the index for each station and thus to analyze long-term dynamics of the ionosphere disturbance level over the station. The results show that intensity of TEC disturbances rises with latitude and solar activity level. It is also shown that high-latitude station YELL W_TEC variations have a pronounced leap in amplitudes at a middle of 1997. It is believed that during the period of 1997-98 there was some global changes in Earth's parameters (e.g. sea level, gravitation field, polar cap albedo, etc.). In the paper, we try to analyze the connection of the observed W_TEC leap with such global geophysical changes and to find the probable reasons of the observed phenomena.

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Ilya Edemskiy "The dynamics of ionosphere disturbance level during 94-04 and its response to a global leap of geophysical parameters at 1997", Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104667H (30 November 2017); https://doi.org/10.1117/12.2288464

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KEYWORDS

Satellite navigation systems

Satellites

Solar processes

Receivers

Antennas

Global Positioning System

Optical filters

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