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Information × Registration Number 0225U000063, (0124U002479) , R & D reports Title Restoration of seasonal and interannual variations of ionospheric characteristics and electromagnetic fields according to the data of long-term monitoring of radio signals in the Arctic, Antarctica, Ukraine and Poland popup.stage_title Відтворення сезонних і міжрічних варіацій характеристик іоносфери та електромагнітних полів за даними довгострокового моніторингу радіосигналів в Арктиці, Антарктиді, Україні та Польщі Head Yampolskyi Yurii M., Доктор фізико-математичних наук Registration Date 04-01-2025 Organization Radio Astronomical Institute of the National Academy of Sciences of Ukraine popup.description1 Recovery of seasonal and interannual variations in the characteristics of the ionosphere and electromagnetic fields and signals in high-latitude regions of the Earth. popup.description2  The object of research is ionospheric disturbances, variations in the characteristics of the propagation of HF signals and ЕLF radiation of global thunderstorm activity. The purpose of the work is to reproduce seasonal and interannual variations in the characteristics of the ionosphere, electromagnetic fields, and signals in high-latitude regions. At this stage of the implementation of the joint research Program between the NAS of Ukraine and the EISCAT Association, the main attention was focused on solving the following tasks: 1) ensuring the continuation of continuous measurements of the spectral characteristics of electromagnetic ELF fields and HF signals in the Arctic, Antarctica and Poland; 2) analysis of data of vertical sounding of the ionosphere in the Arctic during of different seasons of the year close to the minimum and maximum of solar activity; 3) restoration of regular daily and seasonal variations of HF signals at probing high-latitude radio lines; 4) study of the impact of a total solar eclipse and magnetic storms on the ionospheric heights, and response due to HF radio channels; 5) two-position (Arctic - Antarctica) monitoring of powerful bursts of ELF radiation; 6) recovery of the spatial-temporal distribution of super-powerful lightning discharges and global thunderstorm activity. As a result of the analysis of data from multi-position coherent measurements of the HF signals during the total solar eclipse on April 8 of this year, the original phenomenological model of the change in the electron density of the ionosphere in proportion to the area of shielding of the solar disk by the lunar shadow was verified. According to ten-year temperature observations at 10 thousand meteorological stations, temperature trends in Antarctica and the Arctic were estimated. A significant increase in temperature in the Antarctic Peninsula region and its stability on the Spitsbergen archipelago were established. Product Description popup.authors Budanov Oleh V. Dziubanov Dmytro A. Zalizovskyi Andrii V. Kashcheiev Serhii B. Koloskov Oleksandr V. Lysachenko Volodymyr M. Lytvynenko Halyna V. Pikulik Ivan I. Paznukhov Oleksii V. Reznychenko Maryna O. Soina Anna V. Tokarska Liudmyla D. Topchii Maryna A. Yampolskyi Yurii M. popup.nrat_date 2025-01-04 Close