The Eighth International Symposium on Arctic Research (ISAR-8)
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Session Details

OralR7: Geospace

[R7-O]R7:Geospace

Tue. Oct 28, 2025 1:00 PM - 2:30 PM JST
Tue. Oct 28, 2025 4:00 AM - 5:30 AM UTC
Room 2
Chair: Takanori Nishiyama (National Institute of Polar Research)
1:00 PM - 1:30 PM JST(4:00 AM - 4:30 AM UTC)

[R7-O-01]Space-borne Studies of the Arctic Mesosphere and Lower Thermosphere - some Swedish Perspectives

*Jörg Gumbel1 (1. Stockholm University (Sweden))
1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[R7-O-02]Impact of the HTHH eruption's water vapor on polar mesospheric cloud activities observed by Himawari-8/9

*Yosuke Moriyama1, Takuo T. Tsuda1, Yoshiaki Ando1, Hidehiko Suzuki2, Hiromu Nakagawa3, Takanori Nishiyama4,5, Yoshimasa Tanaka4,5,6 (1. University of Electro-Communications (Japan), 2. Meiji University (Japan), 3. Tohoku University (Japan), 4. National Institute of Polar Research (Japan), 5. The Graduate University for Advanced Studies, SOKENDAI (Japan), 6. Polar Environment Data Science Center, Joint Support-Center for Data Science Research, Research Organization of Information and Systems (Japan))
1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[R7-O-03]Resonance-scattering lidar systemfor simultaneously observing meteoric Ca and Ca+

*Masayuki Katsuragawa1,2, Ayaka Hashimoto1, Mutsumi K Ejiri2,3, Sota Kobayashi1, Sayako Miyoshi1, Hikaru Miyagi1, Ken'ichi Nakagawa1, Takuo T Tsuda1, Keisuke Hosokawa1, Takuji Nakamura2,3 (1. Univ. of Electro-Communications (Japan), 2. National institute of Polar Research (Japan), 3. The Graduate University for Advanced Studies (Japan))
2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[R7-O-04]Advanced mesopause region wind observations based on MF radar meteor echo measurements

*Masaki Tsutsumi1, Toralf Renkwitz2, Jorge L. Chau2, Juha Vierinen3, Njål Gulbrandsen3, Satonori Nozawa4 (1. National Institute of Polar Research (Japan), 2. Leibniz Institute of Atmospheric Physics (Germany), 3. The Arctic University of Norway (Norway), 4. Nagoya University (Japan))
2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[R7-O-05]Atmospheric response to solar proton events in the latest reanalysis data

*Yoshihiro Tomikawa1, Jia Jia2 (1. National Institute of Polar Research (Japan), 2. Finnish Meteorological Institute (Finland))
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