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Data Constrained Coronal Mass Ejections in A Global Magnetohydrodynamics Model View all abstracts by submitter

Meng Jin   Submitted: 2017-01-12 15:19

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 events are simulated self-consistently with high fidelity and forecasting capability by constraining initial flux rope parameters with observational data from GONG, SOHO/LASCO, and STEREO/ COR. We automate this process so that minimum manual intervention is required in specifying the CME initial state. With the newly developed data-driven Eruptive Event Generator using Gibson-Low configuration, we present a method to derive Gibson-Low flux rope parameters through a handful of observational quantities so that the modeled CMEs can propagate with the desired CME speeds near the Sun. A test result with CMEs launched with different Carrington rotation magnetograms is shown. Our study shows a promising result for using the firstprinciples-based MHD global model as a forecasting tool, which is capable of predicting the CME direction of propagation, arrival time, and ICME magnetic field at 1 au (see the companion paper by Jin et al. 2016a).

Authors: M. Jin, W. B. Manchester, B. van der Holst, I. Sokolov, G. Toth, R. E. Mullinix, A. Taktakishvili, A. Chulaki, and T. I. Gombosi
Projects: None

Publication Status: Published by ApJ
Last Modified: 2017-01-13 06:08
Go to main E-Print page  Improved Determination of the Location of  the Temperature Maximum in the Corona  Chromosphere to 1 AU Simulation of the 2011 March 7th Event: A Comprehensive Study of Coronal Mass Ejection Propagation  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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