*Mamoru Yamamoto1, Hiroyuki Hashiguchi1, Yasunobu Ogawa2, Kazuo Shiokawa3, Akimasa Yoshikawa4, Kazumasa Iwai3
(1. Research Institute for Sustainable Humanosphere, Kyoto University, 2. National Institute of Polar Research, 3. Institute for Space-Earch Environmental Research, Nagoya University, 4. Department of Earth and Planetary Sciences / i-SPES, Kyushu University)
Keywords:Equatorial MU radar, EISCAT_3D radar, Next-generation solar wind observation system, International observation network, IUGONET