Solnechno-Zemnaya Fizika Solnechno-Zemnaya Fizika Солнечно-земная физика 2712-9640 98513 10.12737/szf-121202608 khrlcv Результаты исследований Results of current research Результаты исследований Analyzing events of simultaneous ground-based registration of auroral hiss bursts and riometric absorption increase Анализ событий одновременной наземной регистрации всплесков авроральных шипений и возрастания риометрического поглощения https://orcid.org/0000-0002-0715-3873 Никитенко Александр Сергеевич Nikitenko Aleksandr Sergeevich alex6657328@yandex.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 https://orcid.org/0000-0002-5155-6055 Лебедь Ольга Михайловна Lebed Olga Mihaylovna olga.m.lebed@gmail.com

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 https://orcid.org/0000-0002-5001-9768 Ларченко Алексей Викторович Larchenko Aleksey Viktorovich alexey.larchenko@gmail.com https://orcid.org/0000-0002-9957-0921 Федоренко Юрий Валентинович Fedorenko Yuriy Valentinovich yury.fedorenko@gmail.com Полярный геофизический институт Апатиты Россия Polar Geophysical Institute Apatity Russian Federation Полярный геофизический институт Апатиты Россия Polar Geophysical Institute Apatity Russian Federation Полярный геофизический институт Апатиты Россия Polar Geophysical Institute Apatity Russian Federation Полярный геофизический институт Апатиты Россия Polar Geophysical Institute Apatity Russian Federation 25 03 2026 25 03 2026 12 1 64 73 07 05 2025 01 09 2025 https://naukaru.ru/en/nauka/article/98513/view

В работе представлены результаты анализа девяти событий одновременной наземной регистрации всплесков авроральных шипений на геофизической станции «Ловозеро» и возрастаний поглощения космического радиошума (риометрического поглощения) на станции «Ловозеро» и в обсерватории «Туманный», расположенных на Кольском п-ове. Положение области повышенного поглощения мы оценивали по результатам риометрических наблюдений в этих обсерваториях и снимкам all-sky-камер на станции «Ловозеро» и в близлежащих точках. Положение области приема авроральных шипений определялось по измерениям азимутального угла вектора Пойнтинга и поляризации магнитного поля шипений. Обнаружено, что для каждого рассматриваемого события область приема авроральных шипений и область повышенного риометрического поглощения находятся на разных широтах. Это может объяснить случаи одновременных наземных наблюдений рассматриваемых явлений, хотя обычно авроральные шипения исчезают при существенном повышении риометрического поглощения.

The paper presents the results of the analysis of nine simultaneous ground-based detection events of auroral hiss bursts at the Lovozero Observatory and cosmic radio noise absorption (riometric absorption) at the Lovozero and Tumanny observatories located on the Kola Peninsula. We have estimated the position of the area of increased absorption, using the results of riometric observations at these observatories and images from all-sky cameras in the Lovozero Observatory and nearby locations. The position of the area “illuminated” by auroral hisses was determined by measuring the azimuthal angle of the Poynting vector and the polarization of the magnetic field of the hisses. It has been found that for each event considered the area of illumination and the area of increased riometric absorption are located at different latitudes. This may explain the cases of simultaneous ground-based observations of the two phenomena in question, although auroral hisses usually disappear with a significant increase in riometric absorption.

 авроральные шипения ионосфера поглощение космического радиошума auroral hiss ionosphere cosmic noise absorption Работа поддержана грантом РНФ № 24-27-20048 «Оценка состояния ионосферы в арктической зоне по результатам наземных измерений электромагнитного поля авроральных шипений в очень низкочастотном диапазоне и риометрического поглощения». The work was financially supported by RSF Grant No. 24-27-20048 "Assessment of Ionospheric Conditions in the Arctic Zone from Results of Ground-Based Measurements of the Electromagnetic Field of Auroral Hisses in the Very Low Frequency Range and Riometric Absorption"

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