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Understanding and forecasting the geoeffectiveness of a coronal mass ejection (CME) is crucial for protecting infrastructure in the near-Earth space environment and on Earth. In this study, we present a novel fusion model to forecast the…

太阳与恒星天体物理 · 物理学 2026-05-26 Zhaoxin Yan , Jason T. L. Wang , Haimin Wang , Harim Lee , Ju Jing , Yan Xu , Chunhui Xu , Vasyl Yurchyshyn

Coronal mass ejections (CMEs) are the most geoeffective space weather phenomena, being associated with large geomagnetic storms, having the potential to cause disturbances to telecommunication, satellite network disruptions, power grid…

太阳与恒星天体物理 · 物理学 2022-08-17 Andreea-Clara Pricopi , Alin Razvan Paraschiv , Diana Besliu-Ionescu , Anca-Nicoleta Marginean

In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep. 2015, and we use this CME sample to test the capabilities of a Sun-to-Earth…

太阳与恒星天体物理 · 物理学 2017-12-19 Camilla Scolini , Mauro Messerotti , Stefaan Poedts , Luciano Rodriguez

The main objective of the study is to determine the probability distributions of the geomagnetic Dst index as a function of the coronal mass ejection (CME) and solar flare parameters for the purpose of establishing a probabilistic forecast…

One of the goals of Space Weather studies is to achieve a better understanding of impulsive phenomena, such as Coronal Mass Ejections (CMEs), in order to improve our ability to forecast them and mitigate the risk to our technologically…

We present the first real-time predictions of coronal mass ejection (CME) magnetic structure and resulting geomagnetic impact at Earth for two events using far-upstream observations from Solar Orbiter during March 2024. While our approach…

To understand the global-scale physical processes behind coronal mass ejection (CME)-driven geomagnetic storms and predict their intensity as a space weather forecasting measure, we develop an interplanetary CME flux rope-magnetosphere…

太阳与恒星天体物理 · 物理学 2023-07-04 Souvik Roy , Dibyendu Nandy

Interacting coronal mass ejections (CMEs) result in complex heliospheric structures that can dramatically enhance their geoeffectiveness compared to isolated events. A striking example of such complex structures is that of the Mothers Day…

太阳与恒星天体物理 · 物理学 2026-03-03 Shirsh Lata Soni , Anwesha Maharana , Sanchita Pal , Stefaan Poedts

Space weather, driven by solar flares and Coronal Mass Ejections (CMEs), poses significant risks to technological systems. Accurately forecasting these events and their impact on Earth's magnetosphere remains a challenge because of the…

太阳与恒星天体物理 · 物理学 2025-01-27 Sabrina Guastavino , Edoardo Legnaro , Anna Maria Massone , Michele Piana

Improving predictions of the geomagnetic impact of coronal mass ejections (CMEs) requires understanding how solar source properties relate to in-situ measurements at Earth. However, major geomagnetic storms frequently arise from interacting…

太阳与恒星天体物理 · 物理学 2026-04-09 Rui Wang , Huidong Hu , Xiaowei Zhao , Chong Chen , Suli Ma , Zhongwei Yang , Lei Lu , Li Feng , Wenshuai Cheng , Chong Huang , Quan Wang , Xiaoshuai Zhu , Bei Zhu , Yiming Jiao

The Sun constantly releases radiation and plasma into the heliosphere. Sporadically, the Sun launches solar eruptions such as flares and coronal mass ejections (CMEs). CMEs carry away a huge amount of mass and magnetic flux with them. An…

太阳与恒星天体物理 · 物理学 2023-05-02 Khalid A. Alobaid , Jason T. L. Wang

We investigate how a weak coronal mass ejection (CME) launched on 2016 October 8 without obvious signatures in the low corona produced a relatively intense geomagnetic storm. Remote sensing observations from SDO, STEREO and SOHO and in situ…

空间物理 · 物理学 2018-06-20 Wen He , Ying D. Liu , Huidong Hu , Rui Wang , Xiaowei Zhao

Halo coronal mass ejections (HCMEs) originating from regions close to the center of the Sun are likely to be geoeffective. Assuming that the shape of HCMEs is a cone and they propagate with constant angular widths and velocities, at least…

天体物理学 · 物理学 2016-03-09 G. Michalek , N. Gopalswamy , A. Lara , S. Yashiro

EUropean Heliospheric FORecasting Information Asset (EUHFORIA) is a physics-based data-driven solar wind and CME propagation model designed for space weather forecasting and event analysis investigations. Although EUHFORIA can predict the…

Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections…

Forecasting the geomagnetic effects of solar coronal mass ejections (CMEs) is currently an unsolved problem. CMEs, responsible for the largest values of the north-south component of the interplanetary magnetic field, are the key driver of…

Geometric modelling of Coronal Mass Ejections (CMEs) is a widely used tool for assessing their kinematic evolution. Furthermore, techniques based on geometric modelling, such as ELEvoHI, are being developed into forecast tools for space…

The geo-effectiveness of Coronal Mass Ejections (CMEs) is a critical area of study in space weather, particularly in the lesser-explored domain of CME-CME interactions and their geomagnetic consequences. This study leverages the SWASTi…

太阳与恒星天体物理 · 物理学 2024-10-01 Prateek Mayank , Stefan Lotz , Bhargav Vaidya , Wageesh Mishra , D. Chakrabarty

Coronal Mass Ejections (CMEs) are arguably the most violent eruptions in the Solar System. CMEs can cause severe disturbances in the interplanetary space and even affect human activities in many respects, causing damages to infrastructure…

太阳与恒星天体物理 · 物理学 2018-03-28 Jiajia Liu , Yudong Ye , Chenlong Shen , Yuming Wang , Robert Erdélyi

Coronal Mass Ejections (CMEs) are energetic storms in the Sun that result in the ejection of large-scale magnetic clouds (MCs) in interplanetary space that contain enhanced magnetic fields with coherently changing field direction. The…

太阳与恒星天体物理 · 物理学 2022-11-09 Sanchita Pal , Dibyendu Nandy , Emilia K J Kilpua
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