A new technique to provide realistic input to CME forecasting models

TL;DR

This paper introduces FRED, a novel technique that constructs flux ropes from eruption data to improve the realism of CME forecasting models by accurately defining their magnetic and geometric properties.

Contribution

The paper presents a new method, FRED, for constructing flux ropes from eruption data, enhancing the input realism for CME forecasting models.

Findings

FRED effectively reconstructs flux rope properties from eruption data.

FRED's application to the 2012 July 12 event demonstrates realistic magnetic field predictions.

The technique improves the accuracy of CME magnetic field component forecasts.

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.