A new technique to provide realistic input to CME forecasting models

Abstract

We report on a technique to construct a flux rope (FR) from eruption data at the Sun. The technique involves line-of-sight magnetic fields, post-eruption arcades in the corona, and white-light coronal mass ejections (CMEs) so that the FR geometric and magnetic properties can be fully defined in addition to the kinematic properties. We refer to this FR as FRED (Flux Rope from Eruption Data). We illustrate the FRED construction using the 2012 July 12 eruption and compare the coronal and interplanetary properties of the FR. The results indicate that the FRED input should help make realistic predictions of the components of the FR magnetic field in the heliosphere.

4 pages, 2 figures, IAU Symposium 335: Space Weather of the Heliosphere: Processes and Forecasts

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Cited by in corpus (5)

• Observation-based modelling of magnetised Coronal Mass Ejections with EUHFORIA
• A magnetic cloud prediction model for forecasting space weather relevant properties of Earth-directed coronal mass ejections
• On the utility of flux rope models for CME magnetic structure below 30$R_{\odot }$
• Automated detection of coronaL MAss ejecta origiNs for space weather AppliCations (ALMANAC)
• Novel scaling laws to derive spatially resolved flare and CME parameters from sun-as-a-star observables