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Investigation of small-scale magnetic flux ropes and their effect on the solar wind-magnetosphere-ionosphere coupling process

Authors

Shin,  Youra
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Noh,  Sungjun
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Huang,  Nengyi
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Farooki,  Hameedullah
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Desai,  Manal
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bizos,  George
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Choi,  Kyung-Eun
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Wang,  Haimin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kim,  Hyomin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Shin, Y., Noh, S., Huang, N., Farooki, H., Desai, M., Bizos, G., Choi, K.-E., Wang, H., Kim, H. (2023): Investigation of small-scale magnetic flux ropes and their effect on the solar wind-magnetosphere-ionosphere coupling process, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3148


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020550
Abstract
Small-scale magnetic flux ropes (SMFRs), a bundle of twisted field lines, have been discovered in the solar wind at 1AU. It is widely known that rotating magnetic field structure is favorable for build-up, release, and transport of free energy. However, their interaction with the Earth’s magnetosphere has not yet been extensively studied even though it may play an important role in energy transfer from the solar wind to the geospace environment. We report on the effect of SMFRs on the Solar Wind – Magnetosphere – Ionosphere coupling process. SMFR events used in this study are identified by Grad-Shafranov (GS) reconstruction algorithm which has been used in a number of SMFR studies. Our pilot study found 454 SMFRs from Magnetospheric Multiscale (MMS) mission near the Earth’s magnetospheric boundary from 11/15/2017 to 03/13/2018. During this period, we perform a statistical analysis of SMFRs from both MMS and Wind spacecraft to compare their occurrence and characteristics, and to determine SMFR-related solar wind conditions. We also use several magnetospheric missions (e.g., RBSP, THEMIS, GOES, etc) and ground-based instruments (e.g., magnetometers, all sky imagers, etc) to understand a global picture of geospace responses to SMFRs. Here we present simultaneous in-situ and ground observations in association with SMFR events.