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TVS 2025
The Variable Sun
Past, Present, and Future Perspectives
13th - 17th October, 2025
Organizers: IIST, ANRF, IIA, ARIES, IISER Kolkata & University College, Thiruvananthapuram, India
Registration
Poster
Scientific Program
Image Credit: NASA/ESA/SOHO
Abstract Details
Name:
Akhil Shrivastava
Affiliation:
Babasaheb Bhimrao Ambedkar University, Lucknow
Conference ID:
TVS202510207
Title:
Reassessing Space Weather Risk: The Significance of Weak and Stealth Solar Eruptions
Authors and Co-Authors:
Abstract Type:
Contributory Presentation
Abstract:
Weak and stealth CMEs, often characterized by low speed or faint signatures, are typically overlooked in space weather forecasting. However, recent studies indicate that they may still trigger moderate geomagnetic storms if favorable interplanetary conditions, such as southward IMF (Bz g catalogs. Then correlate CME arrival times with geomagnetic indices (Dst, Kp) and solar wind/IMF parameters from OMNI to assess their geoeffectiveness. The expected outcome is to demonstrate that even weak and stealth CMEs, though subtle, can play a significant role in driving moderate geomagnetic storms. This result would emphasize the importance of including such events in future space weather risk assessments.