First five years of Syowa cosmic ray observations at the Antarctic

Chihiro Kato; Kazuoki Munakata; Akira Kadokura; Ryuho Kataoka; Shoko Miyake; Masayoshi Kozai; Paul Evenson; Yuki Hayashi; Yoshiki Masuda; Mizuki Matsumoto

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM09] Space Weather and Space Climate

Fri. May 26, 2023 3:30 PM - 5:00 PM 101 (International Conference Hall, Makuhari Messe)

convener:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen(NASA Goddard Space Flight Center), Mary Aronne, Satoko Nakamura(Institute for Space-Earth Environmental Research, Nagoya University), Chairperson:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen(NASA Goddard Space Flight Center)

3:45 PM - 4:00 PM

[PEM09-23] First five years of Syowa cosmic ray observations at the Antarctic

*Chihiro Kato¹, Kazuoki Munakata¹, Akira Kadokura^2,3, Ryuho Kataoka², Shoko Miyake⁴, Masayoshi Kozai³, Paul Evenson⁵, Yuki Hayashi¹, Yoshiki Masuda¹, Mizuki Matsumoto¹ (1.Shinshu University, 2.National Institute of Polar Research, 3.Polar Environment Data Science Center, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, 4.National Institute of Technology, Ibaraki College, 5.University of Delaware)

Keywords:Cosmic Ray, Space weather

Since 2018.2, simultaneous observation of cosmic ray muon and neutron is continued. The operation is quite stable and its duty cycle is higher than 95%. After starting new solar cycle period, there are a few space weather events. These detectors are showing their usefulness by responding to those events. Data is also used to develop a new method to correct "seasonal variation" of NM count rate. We report outcomes and current status of the observation for the last five years.