Grad–Shafranov Reconstruction of Magnetic Clouds: Overview and Improvements

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Isavnin , A , Kilpua , E & Koskinen , H 2011 , ' Grad–Shafranov Reconstruction of Magnetic Clouds: Overview and Improvements ' , Solar Physics , vol. 273 , no. 1 , pp. 205-219 . https://doi.org/10.1007/s11207-011-9845-z

Title: Grad–Shafranov Reconstruction of Magnetic Clouds: Overview and Improvements
Author: Isavnin, Alexey; Kilpua, Emilia; Koskinen, Hannu
Contributor organization: Department of Physics
Division of Geophysics and Astronomy (-2017)
Space Physics Research Group
Date: 2011
Language: eng
Belongs to series: Solar Physics
ISSN: 0038-0938
DOI: https://doi.org/10.1007/s11207-011-9845-z
URI: http://hdl.handle.net/10138/28451
Abstract: The Grad–Shafranov reconstruction is a method of estimating the orientation (invariant axis) and cross section of magnetic flux ropes using the data from a single spacecraft. It can be applied to various magnetic structures such as magnetic clouds (MCs) and flux ropes embedded in the magnetopause and in the solar wind. We develop a number of improvements of this technique and show some examples of the reconstruction procedure of interplanetary coronal mass ejections (ICMEs) observed at 1 AU by the STEREO, Wind, and ACE spacecraft during the minimum following Solar Cycle 23. The analysis is conducted not only for ideal localized ICME events but also for non-trivial cases of magnetic clouds in fast solar wind. The Grad–Shafranov reconstruction gives reasonable results for the sample events, although it possesses certain limitations, which need to be taken into account during the interpretation of the model results.
Subject: 114 Physical sciences
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: publishedVersion


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