Earth-Directed ICME Magnetic Field Configurations

Tuesday, 16 December 2014: 3:25 PM
Teresa Nieves-Chinchilla1, Adam Szabo1, Angelos Vourlidas2, Neel Savani3, Miguel A. UAH Hidalgo4 and Wenyuan Yu5, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)Naval Research Laboratory, Alexandria, VA, United States, (3)Naval Research Laboratory, Washington, DC, United States, (4)University of Alcalá, Madrid, Spain, (5)Space science center, University of new hampshire, Durham, NH, Durham, NH, United States
It is known that the geoeffectiveness of interplanetary coronal mass ejections (ICMEs) depends on their magnetic field configuration. However, it remains unclear how the ICME interactions with the solar wind or other solar transient structures affect their magnetic configuration through, say, distortion of their cross-section, or deformation of their front. Obviously, precise space weather forecasting is depended on precise understanding of the evolution of the ICME internal magnetic topology.

The goal of this study is to identify the ambient solar wind parameters that affect the flux-rope geometry and magnetic field configuration