Japan Geoscience Union Meeting 2016

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International Session (Poster)

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM08] Inner magnetosphere: Latest results and new perspectives

Mon. May 23, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Danny Summers(Memorial University of Newfoundland), Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Yoshizumi Miyoshi(Institute for Space-Earth Environmental Research, Nagoya University)

5:15 PM - 6:30 PM

[PEM08-P02] First observation of whistler-mode chorus with wavy tones

*Zhonglei Gao1 (1.University of Science and Technology of China)

Whistler-mode chorus emissions usually appear as rising tones, falling tones, constant tones, hooks and hiss-like band. Here we report a new type of chorus with “wavy tones” observed by Van Allen Probes. The frequency of chorus rose by up to 500 Hz within ~0.5s and then fell back within ~0.7s. This behavior repeated to give a wavy pattern and the continuous wavy structure lasted for ~10s. At the same time, rising tones and hiss-like band occurred above and below the wavy tones. The generation mechanism of chorus with wavy tones need to be further investigated.