Journal cover Journal topic
Annales Geophysicae Sun, Earth, planets, and planetary systems An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/angeo-2018-42
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
ANGEO Communicates
14 May 2018
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Annales Geophysicae (ANGEO).
A new method to identify flux ropes in space plasmas
Shiyong Huang1, Pufan Zhao1, Jiansen He2, Zhigang Yuan1, Meng Zhou3, Huishan Fu4, Xiaohua Deng3, Ye Pang3, Dedong Wang1, Xiongdong Yu1, Haimeng Li4, Roy Torbert5, and James Burch6 1School of Electronic Information, Wuhan University, Wuhan, China
2School of Earth and Space Sciences, Peking University, Beijing, China
3Institute of Space Science and Technology, Nanchang University, Nanchang, China
4School of Space and Environment, Beihang University, Beijing, China
5University of New Hampshire, Durham, New Hampshire, USA
6Southwest Research Institute, San Antonio TX, USA
Abstract. Flux ropes are frequently observed in the space plasmas, such as magnetosphere, magnetosheath, and solar wind etc., and play an important role in the reconnection process and mass and flux transportation. One usually used bipolar signature and strong core field to identify the flux ropes. We propose here one new method to identify flux ropes based on the correlations between the variables of the data from in-situ spacecraft observations and the target-function-to-be-correlated (TFC) from the ideal flux rope model. Through comparing the correlation coefficients of different variables at different time and scales, and performing weighted average technique, this method can derive the scales and locations of the flux ropes. We discuss the limitation of our method and also compare it with other methods.
Citation: Huang, S., Zhao, P., He, J., Yuan, Z., Zhou, M., Fu, H., Deng, X., Pang, Y., Wang, D., Yu, X., Li, H., Torbert, R., and Burch, J.: A new method to identify flux ropes in space plasmas, Ann. Geophys. Discuss., https://doi.org/10.5194/angeo-2018-42, in review, 2018.
Shiyong Huang et al.
Shiyong Huang et al.
Shiyong Huang et al.

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