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Universe
Special Issues
The Solar Origin of Space Weather
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The Solar Origin of Space Weather

A special issue of Universe (ISSN 2218-1997). This special issue belongs to the section "Space Science".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 2895

Special Issue Editors

Dr. Yutian Chi

E-Mail Website
Guest Editor
Institute of Deep Space Sciences, Deep Space Exploration Laboratory, Hefei 230026, China
Interests: coronal mass ejection and its relative phenomenon; geomagnetic storms; propagation of CMEs in the heliosphere
Prof. Dr. Hongqiang Song

E-Mail Website
Guest Editor
School of Space Science and Physics, Shandong University, Weihai 264209, China
Interests: solar physics; space physics; space weather
Dr. Wageesh Mishra

E-Mail Website
Guest Editor
Indian Institute of Astrophysics, Bengaluru 560034, India
Interests: coronal mass ejections; geomagnetic storms; solar wind; solar-type stars

Special Issue Information

Dear Colleagues,

Geomagnetic storms, which cause a wide range of undesirable consequences, such as satellite system disruption, damage to ground-based electric power grids, and interruptions of high-frequency communications and satellite navigation systems, are primarily caused by the coupling of the southward interplanetary magnetic field and the magnetosphere. Interplanetary coronal mass ejections (ICMEs) and stream interaction regions (SIRs) are the primary carriers of the intense south component of the interplanetary magnetic field and are thought to be the primary source of geomagnetic storms. The prediction of the southern magnetic field carried by ICMEs or SIRs and the magnitude of resulting geomagnetic storms are important topics in the space weather forecast. With this Special Issue, we aim to improve our space weather forecast ability.

The Special Issue is essential to fully comprehend space weather prediction, including CME dynamics, CME magnetic field evolution, and the solar origin of geomagnetic storms. We solicit papers include, but are not limited to, coronal mass ejections, stream interaction regions, the interplanetary southerly magnetic field carried by solar eruption transients, geomagnetic storms, and space weather forecast and modelling.

Dr. Yutian Chi
Prof. Dr. Hongqiang Song
Dr. Wageesh Mishra
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Universe is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • southward magnetic field
  • geomagnetic storms
  • coronal mass ejections
  • corotating interaction regions

Published Papers (2 papers)

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Research

11 pages, 530 KiB  
Article
Statistical Study of Geo-Effectiveness of Planar Magnetic Structures Evolved within ICME’s
by Kalpesh Ghag, Bhagyashri Sathe, Anil Raghav, Zubair Shaikh, Digvijay Mishra, Ankush Bhaskar, Tarun Kumar Pant, Omkar Dhamane, Prathmesh Tari, Prachi Pathare, Vinit Pawaskar, Kishor Kumbhar and Greg Hilbert
Universe 2023, 9(8), 350; https://doi.org/10.3390/universe9080350 - 27 Jul 2023
Cited by 4 | Viewed by 942
Abstract
Interplanetary coronal mass ejections (ICME) are large-scale eruptions from the Sun and prominent drivers of space weather disturbances, especially intense/extreme geomagnetic storms. Recent studies by our group showed that ICME sheaths and/or magnetic clouds (MC) could be transformed into a planar magnetic structure [...] Read more.
Interplanetary coronal mass ejections (ICME) are large-scale eruptions from the Sun and prominent drivers of space weather disturbances, especially intense/extreme geomagnetic storms. Recent studies by our group showed that ICME sheaths and/or magnetic clouds (MC) could be transformed into a planar magnetic structure (PMS) and speculate that these structures might be more geo-effective. Thus, we statistically investigated the geo-effectiveness of planar and non-planar ICME sheaths and MC regions. We analyzed 420 ICME events observed from 1998 to 2017, and we found that the number of intense (−100 to −200 nT) and extreme (<−200 nT) geomagnetic storms are large during planar ICMEs (almost double) compared to non-planar ICMEs. In fact, almost all the extreme storm events occur during PMS molded ICME crossover. The observations suggest that planar structures are more geo-effective than non-planar structures. Thus, the current study helps us to understand the energy transfer mechanism from the ICME/solar wind into the magnetosphere, and space-weather events. Full article
(This article belongs to the Special Issue The Solar Origin of Space Weather)
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15 pages, 2961 KiB  
Article
Parameter Study of Geomagnetic Storms and Associated Phenomena: CME Speed De-Projection vs. In Situ Data
by Rositsa Miteva, Mohamed Nedal, Susan W. Samwel and Manuela Temmer
Universe 2023, 9(4), 179; https://doi.org/10.3390/universe9040179 - 08 Apr 2023
Viewed by 1361
Abstract
In this study, we give correlations between the geomagnetic storm (GS) intensity and parameters of solar and interplanetary (IP) phenomena. We also perform 3D geometry reconstructions of geo-effective coronal mass ejections (CMEs) using the recently developed PyThea framework and compare on-sky and de-projected [...] Read more.
In this study, we give correlations between the geomagnetic storm (GS) intensity and parameters of solar and interplanetary (IP) phenomena. We also perform 3D geometry reconstructions of geo-effective coronal mass ejections (CMEs) using the recently developed PyThea framework and compare on-sky and de-projected parameter values, focusing on the reliability of the de-projection capabilities. We utilize spheroid, ellipsoid and graduated cylindrical shell models. In addition, we collected a number of parameters of the GS-associated phenomena. A large variation in 3D de-projections is obtained for the CME speeds depending on the selected model for CME reconstruction and observer subjectivity. A combination of fast speed and frontal orientation of the magnetic structure upon its arrival at the terrestrial magnetosphere proves to be the best indicator for the GS strength. More reliable estimations of geometry and directivity, in addition to de-projected speeds, are important for GS forecasting in operational space weather schemes. Full article
(This article belongs to the Special Issue The Solar Origin of Space Weather)
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