High-latitude ionospheric irregularities during the 25–26 August 2018 geomagnetic storm as seen by ground-based and space-borne instruments
| Autor: | Yu. V. Yasyukevich, B. Maletckii, Semen Syrovatskii, Elvira Astafyeva, A.S. Yasyukevich |
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| Přispěvatelé: | Institut de Physique du Globe de Paris (IPGP), Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institute of Solar-Terrestrial Physics [Irkutsk] (ISTP), Siberian Branch of the Russian Academy of Sciences (SB RAS), Lomonosov Moscow State University (MSU), Astafyeva, Elvira |
| Rok vydání: | 2021 |
| Předmět: |
Geomagnetic storm
010504 meteorology & atmospheric sciences Excursion Storm 010502 geochemistry & geophysics Spatial distribution 01 natural sciences [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] 13. Climate action GNSS applications Climatology High latitude Satellite Ionosphere [PHYS.PHYS.PHYS-SPACE-PH] Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] Geology 0105 earth and related environmental sciences |
| Zdroj: | Proceedings of the XXXVIth URSI General Assembly and Scientific Symposium Proceedings of the XXXVIth URSI General Assembly and Scientific Symposium, Mar 2021, Rome, Italy |
| Popis: | International audience; In this work, we analyze the occurrence of ionospheric irregularities during the 25-26 August 2018 geomagnetic storm. With the minimum SYM-H excursion of-206 nT, this storm is the third largest in the solar cycle 24. It produced strong effects in the ionosphere, especially in the American and Pacific longitudinal sectors. Here we use a combination of ground-based (GNSS) and spaceborne (Swarm and CSES) instruments in order to detect the occurrence of intensive ionospheric irregularities. We show that the most significant impact was done at highlatitudes. In the North American region, the area with irregularities descended to 42-45N. The location of the observed irregularities corresponded, most likely, to the auroral oval region. The use of satellite measurements added more information on the spatial distribution of the irregularities, which is especially important in areas with limited coverage by ground-based GNSS stations. |
| Databáze: | OpenAIRE |
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