scholarly journals Assessing the projection correction of Coronal Mass Ejection speeds on Time‐of‐Arrival prediction performance using the Effective Acceleration Model

Space Weather ◽  
2020 ◽  
Author(s):  
Evangelos Paouris ◽  
Angelos Vourlidas ◽  
Athanasios Papaioannou ◽  
Anastasios Anastasiadis
Keyword(s):  
Coronal Mass Ejection ◽  
Prediction Performance ◽  
Time Of Arrival ◽  
Acceleration Model ◽  
Mass Ejection

The CME arrival prediction with the Effective Acceleration Model: Further testing with heliospheric imaging observations

2021 ◽  
Author(s):  
Evangelos Paouris ◽  
Angelos Vourlidas ◽  
Athanasios Papaioannou ◽  
Anastasios Anastasiadis
Keyword(s):  
Interplanetary Medium ◽  
Field Of View ◽  
Time Of Arrival ◽  
Test Cases ◽  
Constant Acceleration ◽  
Acceleration Model ◽  
Open Issue ◽  
Mass Ejection ◽  
First Time ◽  
Ambient Solar Wind

<p>The estimation of the Coronal Mass Ejection (CME) arrival is an open issue in the field of Space Weather. Many models have been developed to predict Time-of-Arrival (ToA). In this work, we utilize an updated version of the Effective Acceleration Model (EAM) to calculate the ToA. The EAM predicts the ToA of the CME-driven shock and the sheath's average speed at 1 AU. The model assumes that the interaction between the ambient solar wind and the interplanetary CME (ICME) results in constant acceleration or deceleration. We recently compared EAM against ENLIL and drag based models (DBEM) with a sample of 16 CMEs. We confirmed the well-known fact that the deceleration of fast ICMEs in the interplanetary medium is not captured by most models. We study further the deceleration of fast ICMEs by introducing, for the first time, wide-angle observations by the STEREO heliospheric imagers into the EAM model. The speed profiles for some test cases show deceleration in the interplanetary medium at greater distances compared with the field-of-view of the coronagraphs.</p>

scholarly journals A Probabilistic Approach to the Drag-Based Model

2017 ◽  
Vol 13 (S335) ◽  
pp. 304-306
Author(s):  
Gianluca Napoletano ◽  
Roberta Forte ◽  
Dario Del Moro ◽  
Ermanno Pietropaolo ◽  
Luca Giovannelli ◽  
...  
Keyword(s):  
Solar System ◽  
Coronal Mass Ejection ◽  
Statistical Approach ◽  
Probability Distributions ◽  
Probabilistic Approach ◽  
Forecast Accuracy ◽  
High Technology ◽  
Time Of Arrival ◽  
Critical Importance ◽  
Mass Ejection

AbstractForecasting the time of arrival of a Coronal Mass Ejection at Earth is of critical importance for our high-technology society and for any future manned exploration of the Solar System. As critical as the forecast accuracy is the knowledge of its precision, i.e. the error associated to the estimate. Here a statistical approach to the computation of the time of arrival using the Drag-Based Model is proposed through the introduction of probability distributions, rather than exact values, as input parameters, thus allowing the evaluation of the uncertainty on the forecast.

EVIDENCE FOR INTERNAL TETHER-CUTTING IN A FLARE/CORONAL MASS EJECTION OBSERVED BYMESSENGER,RHESSI, ANDSTEREO

2010 ◽  
Vol 721 (2) ◽  
pp. 1579-1584 ◽  
Author(s):  
Claire L. Raftery ◽  
Peter T. Gallagher ◽  
R. T. James McAteer ◽  
Chia-Hsien Lin ◽  
Gareth Delahunt
Keyword(s):  
Coronal Mass Ejection ◽  
Mass Ejection

Flux Rope Model of the 2003 October 28–30 Coronal Mass Ejection and Interplanetary Coronal Mass Ejection

2006 ◽  
Vol 642 (1) ◽  
pp. 541-553 ◽  
Author(s):  
J. Krall ◽  
V. B. Yurchyshyn ◽  
S. Slinker ◽  
R. M. Skoug ◽  
J. Chen
Keyword(s):  
Coronal Mass Ejection ◽  
Flux Rope ◽  
Interplanetary Coronal Mass Ejection ◽  
Mass Ejection

scholarly journals Three-dimensional MHD modeling of the solar wind structures associated with 13 December 2006 coronal mass ejection

2009 ◽  
Vol 114 (A10) ◽  
pp. n/a-n/a ◽  
Author(s):  
R. Kataoka ◽  
T. Ebisuzaki ◽  
K. Kusano ◽  
D. Shiota ◽  
S. Inoue ◽  
...  
Keyword(s):  
Solar Wind ◽  
Coronal Mass Ejection ◽  
Three Dimensional ◽  
Mhd Modeling ◽  
Mass Ejection

VLA Measurements of Faraday Rotation Through a Coronal Mass Ejection Using Multiple Lines of Sight

Solar Physics ◽  
2021 ◽  
Vol 296 (1) ◽  
Author(s):  
Jason E. Kooi ◽  
Madison L. Ascione ◽  
Lianis V. Reyes-Rosa ◽  
Sophia K. Rier ◽  
Mohammad Ashas
Keyword(s):  
Coronal Mass Ejection ◽  
Faraday Rotation ◽  
Mass Ejection

scholarly journals Photospheric magnetic field of an eroded-by-solar-wind coronal mass ejection

2016 ◽  
Vol 12 (S327) ◽  
pp. 67-70
Author(s):  
J. Palacios ◽  
C. Cid ◽  
E. Saiz ◽  
A. Guerrero
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Coronal Mass Ejection ◽  
Coronal Hole ◽  
Interplanetary Medium ◽  
Flux Rope ◽  
Magnetic Characteristics ◽  
Interplanetary Coronal Mass Ejection ◽  
Fast Wind ◽  
Mass Ejection

AbstractWe have investigated the case of a coronal mass ejection that was eroded by the fast wind of a coronal hole in the interplanetary medium. When a solar ejection takes place close to a coronal hole, the flux rope magnetic topology of the coronal mass ejection (CME) may become misshapen at 1 AU as a result of the interaction. Detailed analysis of this event reveals erosion of the interplanetary coronal mass ejection (ICME) magnetic field. In this communication, we study the photospheric magnetic roots of the coronal hole and the coronal mass ejection area with HMI/SDO magnetograms to define their magnetic characteristics.

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