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The Solar TErrestrial RElations Observatory (STEREO) and its heliospheric imagers (HI) have provided us the possibility to enhance our understanding of the interplanetary propagation of coronal mass ejections (CMEs). HI-based methods are…

太阳与恒星天体物理 · 物理学 2018-11-14 T. Amerstorfer , C. Möstl , P. Hess , M. Temmer , M. L. Mays , M. Reiss , P. Lowrance , Ph. -A. Bourdin

Interplanetary imagers provide 2D projected views of the densest plasma parts of interplanetary coronal mass ejections (ICMEs) while in situ measurements provide magnetic field and plasma parameter measurements along the spacecraft…

太阳与恒星天体物理 · 物理学 2016-10-26 P. Démoulin , M. Janvier , J. J. Masías-Meza , S. Dasso

The prediction of the arrival time and transit speed of CMEs near the Earth is one of the key problems in understanding the solar terrestrial relationship. Although, STEREO observations now provide a multiple view of CMEs in the…

太阳与恒星天体物理 · 物理学 2014-02-17 Wageesh Mishra , Nandita Srivastava

The Time-of-Arrival (ToA) of coronal mass ejections (CME) at Earth is a key parameter due to the space weather phenomena associated with the CME arrival, such as intense geomagnetic storms. Despite the incremental use of new instrumentation…

Coronal Mass Ejections (CMEs) are the primary source of strong space weather disturbances at Earth. Their geoeffectiveness is largely determined by their dynamic pressure and internal magnetic fields, for which reliable predictions at Earth…

太阳与恒星天体物理 · 物理学 2019-06-26 Camilla Scolini , Luciano Rodriguez , Marilena Mierla , Jens Pomoell , Stefaan Poedts

Slowly rotating magnetic massive stars develop "dynamical magnetospheres" (DM's), characterized by trapping of stellar wind outflow in closed magnetic loops, shock heating from collision of the upflow from opposite loop footpoints, and…

太阳与恒星天体物理 · 物理学 2016-09-07 Stanley P. Owocki , Asif ud-Doula , Jon O. Sundqvist , Veronique Petit , David H. Cohen , Richard H. D. Townsend

This article presents the data-driven equation-free modeling of the dynamics of a hexafloat floating offshore wind turbine based on the application of dynamic mode decomposition (DMD). All the analyses are performed on experimental data…

We present a first-principles-based coronal mass ejection (CME) model suitable for both scientific and operational purposes by combining a global magnetohydrodynamics (MHD) solar wind model with a flux rope-driven CME model. Realistic CME…

太阳与恒星天体物理 · 物理学 2017-01-18 M. Jin , W. B. Manchester , B. van der Holst , I. Sokolov , G. Toth , R. E. Mullinix , A. Taktakishvili , A. Chulaki , T. I. Gombosi

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

Earth System Models (ESMs) are essential for understanding the interaction between human activities and the Earth's climate. However, the computational demands of ESMs often limit the number of simulations that can be run, hindering the…

大气与海洋物理 · 物理学 2024-09-19 Seth Bassetti , Brian Hutchinson , Claudia Tebaldi , Ben Kravitz

Predicting transit times of Coronal Mass Ejections (CMEs) from their initial parameters is a very important subject, not only from the scientific perspective, but also because CMEs represent a hazard for human technology. We used a neural…

太阳与恒星天体物理 · 物理学 2016-08-06 D. Sudar , B. Vršnak , M. Dumbović

Accurate forecasting of the arrival time and subsequent geomagnetic impacts of Coronal Mass Ejections (CMEs) at Earth is an important objective for space weather forecasting agencies. Recently, the CME Arrival and Impact working team has…

太阳与恒星天体物理 · 物理学 2019-03-27 C. Verbeke , M. L. Mays , M. Temmer , S. Bingham , R. Steenburgh , M. Dumbović , M. Núñez , L. K. Jian , P. Hess , C. Wiegand , A. Taktakishvili , J. Andries

Propagation of interplanetary (IP) shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting. Here we address effects of the ambient solar wind on the…

太阳与恒星天体物理 · 物理学 2024-11-04 Chin-Chun Wu , Kan Liou , Brian E. Wood , Lynn Hutting

We present the study of two solar eruptive events observed on December 7 2020 and October 28 2021.Both events were associated with full halo CMEs and flares.These events were chosen because they show a strong non-radial direction of…

太阳与恒星天体物理 · 物理学 2024-07-25 Angelos Valentino , Jasmina Magdalenic

Coronal mass ejections (CMEs) are large eruptions from the Sun that propagate through the heliosphere after launch. Observational studies of these transient phenomena are usually based on 2D images of the Sun, corona, and heliosphere…

Being able to accurately predict the arrival of coronal mass ejections (CMEs) at Earth has been a long-standing problem in space weather research and operations. In this study, we use the ELlipse Evolution model based on Heliospheric Images…

The May 10, 2024 space weather event stands out as the most powerful storm recorded during the current solar cycle. This study employs a numerical framework utilizing a semi-empirical coronal model, along with HUXt (Heliospheric Upwind…

空间物理 · 物理学 2024-11-14 Smitha V. Thampi , Ankush Bhaskar , Prateek Mayank , Bhargav Vaidya , Indu Venugopal

We have deluge of data in time series format for numerous phenomena. The number of snapshots, resolution and many other factors come into play as we look to identify the dynamics in a given problem. The pre-processing and post-processing…

信号处理 · 电气工程与系统科学 2020-01-13 Mohammad N. Murshed , M. Monir Uddin

In this paper, ten CME events viewed by the STEREO twin spacecraft are analyzed to study the deflections of CMEs during their propagation in the corona. Based on the three-dimensional information of the CMEs derived by the graduated…

太阳与恒星天体物理 · 物理学 2012-01-04 Bin Gui , Chenglong Shen , Yuming Wang , Pinzhong Ye , Jiajia Liu , Shui Wang , Xuepu Zhao

This study addresses the limitations of single-viewpoint observations of Coronal Mass Ejections (CMEs) by presenting results from a 3D catalog of 360 CMEs during solar cycle 24, fitted using the GCS model. The dataset combines 326…

太阳与恒星天体物理 · 物理学 2024-02-21 Harshita Gandhi , Ritesh Patel , Vaibhav Pant , Satabdwa Majumdar , Sanchita Pal , Dipankar Banerjee , Huw Morgan