Andreev V.E., Gubenko V.N., Pavelyev A.A., Kirillovich I.A., Gubenko T.V. Absorption of decimetre radio waves in the Earth’s high-latitude ionosphere during a geomagnetic storm in June 2015. Journal of Physics: Conference Series , 2020 , 1632 (1). 012008. ISSN 1742-6588
|
Текст
Andreev_2020_J._Phys.__Conf._Ser._1632_012008.pdf Загрузить (1MB) | Предварительный просмотр |
Аннотация
We have analyzed the radio occultation (RO) results of ~100 sounding sessions of the high-latitude (>65°N) lower ionosphere of the Earth's northern hemisphere, which were carried out on 22–23 June 2015 at the GPS-frequency of 1545.42 MHz (L1 band) in the FORMOSAT-3/COSMIC experiment. Coronal plasma ejections that reached the Earth in this period provoked a class G4 magnetic storm (strong geomagnetic storm with planetary Kp-index equal to 8), which in turn caused significant ionospheric fluctuations of radio waves on the sounding paths: navigation (GPS) satellites – low-orbit (FORMOSAT-3/COSMIC) satellites. For the first time, the analysis of FORMOSAT-3/COSMIC radio frequency measurements revealed the absorption of L1 radio waves in the lower high-latitude ionosphere of the Earth. The absorption value is ~3 dB in the range of 60-90 km and in some cases reaches ~10 dB at altitudes from 90 to 95 km. It is shown that it is possible to obtain the absorption coefficient of GPS-frequency radio waves in the Earth's ionosphere at these altitudes from experimental data of FORMOSAT-3/COSMIC.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Андреев В.Е., Губенко В.Н., Павельев А.А., Кириллович И.А., Губенко Т.В. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 114 лаб. исследований космической плазмы радиофизическими методами 117 лаб. распространения радиоволн в космосе |
| URI: | http://cplire.ru:8080/id/eprint/7941 |
 |
Изменить объект |
