Drag-Based Ensemble Model (DBEM) for Coronal Mass Ejection Propagation

Abstract

The drag-based model (DBM) for heliospheric propagation of coronal mass ejections (CMEs) is a widely used analytical model which can predict CME arrival time and speed at a given heliospheric location. It is based on the assumption that the propagation of CMEs in interplanetary space is solely under the influence of magnetohydrodynamical drag, where CME propagation is determined based on CME initial properties as well as the properties of the ambient solar wind. We present an upgraded version, covering ensemble modelling to produce a distribution of possible ICME arrival times and speeds, the drag-based ensemble model (DBEM). Multiple runs using uncertainty ranges for the input values can be performed in almost real-time, within a few minutes. This allows us to define the most likely ICME arrival times and speeds, quantify prediction uncertainties and determine forecast confidence. The performance of the DBEM is evaluated and compared to that of ensemble WSA-ENLIL+Cone model (ENLIL) using the same sample of events. It is found that the mean error is $ME=-9.7$ hours, mean absolute error $MAE=14.3$ hours and root mean square error $RMSE=16.7$ hours, which is somewhat higher than, but comparable to ENLIL errors ($ME=-6.1$ hours, $MAE=12.8$ hours and $RMSE=14.4$ hours). Overall, DBEM and ENLIL show a similar performance. Furthermore, we find that in both models fast CMEs are predicted to arrive earlier than observed, most probably owing to the physical limitations of models, but possibly also related to an overestimation of the CME initial speed for fast CMEs.

15 pages, 8 figures

References in corpus (7)

• Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections
• Ensemble modeling of CMEs using the WSA-ENLIL+Cone model
• Interplanetary Propagation Behavior of the Fast Coronal Mass Ejection from 23 July 2012
• Heliospheric Propagation of Coronal Mass Ejections: Drag-Based Model Fitting
• CME dynamics using STEREO & LASCO observations: the relative importance of Lorentz forces and solar wind drag
• Sheath-Accumulating Propagation of Interplanetary Coronal Mass Ejection
• Comparison of CME/shock propagation models with heliospheric imaging and in situ observations

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