SM13D-2546
Electromagnetic energy conversion at dipolarization fronts: Multi-spacecraft results
Monday, 14 December 2015
Poster Hall (Moscone South)
Shiyong Huang1, Huishan Fu2, Zhigang Yuan1, Meng Zhou3, Song Fu4, Xiaohua Deng3, Weijie Sun5, Ye Pang3, Dedong Wang6, Huimin Li7, Haimeng Li4 and Xiongdong Yu4, (1)Wuhan University, Wuhan, Hubei, China, (2)Beihang University, Space Science Institute, School of Astronautics, Beijing, China, (3)Nanchang University, Nanchang, China, (4)Wuhan University, Electronic Information School, Wuhan, China, (5)School of Earth and Space Sciences, Beijing, China, (6)Wuhan University of Technology, Wuhan, China, (7)School of Physics and Optoelectronic Engineering, Xi'an, China
Abstract:
Dipolarization fronts (DFs) are believed to play important roles in transferring plasmas, magnetic fluxes and energies in the magnetotail. Using the Cluster observations in 2003, electromagnetic energy conversion at the DFs is investigated by case and statistical studies. The case study indicates strongest energy conversion at the DF. The statistical study shows the similar features that the energy of the fields can be significantly transferred to the plasmas (load, J∙E>0) at the DFs. These results are consistent with some recent simulations. Examining the electromagnetic fluctuations at the DFs, we suggest that the wave activities around the lower hybrid frequency may play an important role in the energy dissipation.
