(sorry for any cross-posting) Dear colleagues, We would like to invite you to the session R7 (Geospace) at ISAR-7 (Seventh International Symposium on Arctic Research) to be held as a hybrid symposium (in person & online) on March 6-10, 2023. On-Site location is National Institute of Polar Research (NIPR), Tachikawa, Tokyo, Japan. ISAR-7 Web Site: https://jcar.org/isar-7/ The deadline of the submission of Abstract is October 31, 2022. The deadline of the early-bird registration is December 19, 2022 and online registration deadline is on February 6, 2023. On-site registration is also available during the Symposium (March 6-10, 2023). New entry restrictions and action measures for foreign nationals regarding COVID-19 infection in Japan was revised and relaxed from October 11, 2022. It is also announced at the ISAR-7 Web Site. We sincerely look forward to your abstract submissions and to seeing you at the symposium in-person as before. Description of the session R7 is as follows: This session is devoted to a forum to discuss recent progress on geospace in the Arctic region, such as ground-based/space-borne observations, theories and modeling. Geospace is the atmosphere/space near the earth, including middle atmosphere, upper atmosphere, thermosphere, ionosphere and magnetosphere. In the Arctic region, human lives and social structures are sensitively affected by the change of geospace disturbed by solar activities. Recent studies have indicated that the geospace in the Arctic region is not only linked by magnetic field lines but also by atmospheric dynamical processes including circulation and waves, and further affect the global atmosphere. Contributions from international collaborative projects/facilities are highly encouraged. If you have any inquiries, please contact the session conveners or ISAR-7 Secretariat (ISAR-secretariat(a)nipr.ac.jp). ISAR-7 Session R7 conveners Yasunobu Ogawa (National Institute of Polar Research, Japan), Takuo Tsuda (The University of Electro-Communications, Japan), Takanori Nishiyama (National Institute of Polar Research, Japan), and William Ward (University of New Brunswick, Canada) -- Yasunobu Ogawa, National Institute of Polar Research, JAPAN E-mail: yogawa(a)nipr.ac.jp Tel: +81-42-512-0664