[M-IS07] Effects of lightning, severe weather and tropical storms

[MIS07-01] ULAT/SATREPSの現状と展望

*高橋 幸弘^1,2、佐藤 光輝^1,2、久保田 尚之^1,2、石田 哲朗^1,2、カストロ エリソン³、エストレビロ ローレン³、プルワディ プルワディ⁴、アルゴドン メリル¹、ペレツ ゲイ³、ジョエル マルシャーノ⁵、松本 淳⁶、浜田 純一⁶ (1.北海道大学・大学院理学院・宇宙理学専攻、2.北海道大学・大学院理学研究院・地球惑星科学部門、3.フィリピン大学ディリマン校、4.インドネシア応用技術庁、5.フィリピン宇宙機関、6.東京都立大学)

キーワード：ULAT、SATREPS、超小型衛星、雷放電、極端気象、モニタリング

Our projects of a SATREPS “ULAT” is to realize precise real-time monitoring and issuing alert for extreme weather, such as torrential rainfall or typhoon. We have been developing a ground observation network with lightning sensors and trying to establish semi real-time operation of micro-satellites to capture the typhoon and thunderstorms. In these projects, we apply two new technologies, that is, the lightning activity estimated by the ground-based lightning networks with 12 sites for VLF radio wave measurement in nation-wide of Philippines and with 50 sites for electrostatic field measurement in Metro Manila together with infrasound sensor and automated weather station, and the 3 dimensional capturing of thunderstorms by the on-demand operation of 50-kg micro-satellites, including the Philippine-developed satellites. We started ULAT project in 2017 and completed the installation of the ground lightning observation station with automated weather station about 70 percent of the original plan and started continuous recording of the data. Although, due to COVID-19, now the installation of ground station is stopping, we plan to carry out the work remotely making use of the latest IT devices. As for the satellite observation, we succeeded in reconstructing detailed 3-D cloud structure near the center of typhoon Maysak 2020 with camera onboard DIWATA-1. In this presentation we update the recent progress of the projects.
This research was supported by Science and Technology Research Partnership for Sustainable Development (SATREPS), Japan Science and Technology Agency (JST) / Japan International Cooperation Agency (JICA).