[M-SD42] Future Missions of Satellite Earth Observation

[MSD42-01] Lightning Sensor on Geostationary Orbit

*Tomoo Ushio¹, Yousuke Sato², Ryo Yoshida³, Satoru Yoshida⁵, Mitsuteru Sato², Eiichi Yoshikawa⁴, Syugo Hayashi⁵, Yuuki Wada¹ (1.Osaka University, 2.Hokkaido University, 3.Japan Meteorological Agency, 4.JAXA, 5.Meteorological Research Institute)

Keywords:Lightning discharge, geostationary orbit

Lightning sensor on a geostationary satellite is listed as a sensor for which a global observation system should be constructed in the 2040 Vision for WIGOS in 2040 of the observation system set by the World Meteorological Organization (WMO). It will be put into operation on a new generation geostationary meteorological satellite in China, and will be installed on the next generation geostationary meteorological satellite in Europe. Therefore, it is expected that lightning discharge will become indispensable data in the future.
So far, in Japan, a lightning and sprite observation mission (GLIMS) has been developed and installed by a group of proposers on the International Space Station "Kibo", and scientific research has been conducted. In this mission, multi-wavelength observations that distinguish between ground discharge and cloud discharge have been studied, and the possibility has been shown.
In this proposal, based on such needs regarding lightning discharge data, we propose research and development of Japan's unique multi-wavelength lightning discharge observation sensor on a geostationary satellite that can distinguish between ground discharge and cloud discharge.