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Information × Registration Number 0223U002619, 0122U002576 , R & D reports Title Monitoring of the geospace conditions and space weather disturbances using national and international remote sensing systems. Stage № 5: Study of the influence of ionospheric inhomogeneities of different nature on space-terrestrial systems of communication and navigation popup.stage_title Head Zalizovskyi Andrii V., Доктор фізико-математичних наук Registration Date 24-02-2023 Organization Radio Astronomical Institute of the National Academy of Sciences of Ukraine popup.description2  Experimental and theoretical studies of ionospheric inhomogeneities of various nature and their influence on the propagation of electromagnetic waves of various frequency ranges were continued. The results obtained during long-term measurements of travelling ionospheric disturbances (TID) over the Antarctic Peninsula using the methods of ionospheric radioscopy by GNSS satellite signals and Doppler HF sounding were summarized and published at Journal of Geophysical Research. The analysis of 3-position Doppler measurements of TID over the Kharkiv region conducted from January 2018 to February 2022, was also continued. Traditionally, as part of the project, we supported the observatory measurements of the space weather conditions, which were conducted at the Low-Frequency Observatory of the National Academy of Sciences at the village of Martova, Kharkiv region. (LFO) and Radio Astronomical Observatory named after S.Ya. Braude, Grakovo, Kharkiv region. (RAO). Unfortunately, both observatories were occupied in the first days of the war and, fortunately, were liberated by the Armed Forces of Ukraine in September 2022. The measurements at these observatories are not possible yet. However, as part of activities related to the support and expansion of measurements of the space weather conditions, during 2022 we equipped three new measuring sites: first one is on board the research vessel "Noosfers"; the second - at the Borowiec LOFAR observatory (Poland), and the third one at the Regime Geophysical Station (RGS) "Nyzhne Selyshche", Carpathian branch of S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Nyzhne Selyshche village, Khust district, Transcarpathian region, Ukraine. Product Description popup.authors Kashcheyev Serhiy Borysovych Koloskov Oleksandr Valeriyovych Lysachenko Volodymyr M. Lytvynenko Leonid Mykolaiovych Reznichenko Artem I Soina Anna V Tokarska Lyudmyla Dmytrivna Charkina Olesya V. Yampolski Yuriy M popup.nrat_date 2023-02-24 Close