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- Title
Study of the development of geomagnetic storms in the magnetosphere using solar wind data of three different time resolutions.
- Authors
Badruddin, B.; Aslam, O. P. M.; Derouich, M.
- Abstract
We study the development of strong geomagnetic storms due to coronal mass ejections in near-Earth space. We compare the time evolution of geomagnetic disturbances with the time variation of solar wind plasma and field parameters with special attention to the development of the main-phase of the geomagnetic storms. We use geomagnetic indices and solar wind parameters of three different time resolutions (1 hour, 5-minutes, and 1-minute) for the analysis, and determine the time-lag between them during the development of the geomagnetic storms. The time-lag has been determined for the 10 selected geomagnetic storms of different strength (weakest geomagnetic storm with Dst = − 88 nT and strongest geomagnetic storm with Dst = − 422 nT) and different main-phase durations (shortest main-phase duration ≈ 4 hours, and longest main-phase ≈ 21 hours). These results will lead us towards better understanding of onset and the development of geomagnetic storms and ultimately the solar wind-magnetosphere coupling.
- Subjects
MAGNETIC storms; SOLAR wind; CORONAL mass ejections; MAGNETOSPHERE; SOLAR oscillations
- Publication
Astrophysics & Space Science, 2022, Vol 367, Issue 1, p1
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-021-04030-5