Japan Geoscience Union Meeting 2019

Presentation information

[E] Oral

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

[P-EM12] Space Weather and Space Climate

Tue. May 28, 2019 9:00 AM - 10:30 AM A04 (TOKYO BAY MAKUHARI HALL)

convener:Ryuho Kataoka(National Institute of Polar Research), Antti A Pulkkinen(NASA Goddard Space Flight Center), Kanya Kusano(Institute for Space-Earth Environmental Research, Nagoya University), Kaori Sakaguchi(National Institute of Information and Communications Technology), Chairperson:Ryuho Kataoka(National Institute of Polar Research)

9:15 AM - 9:30 AM

[PEM12-26] Current Status of WASAVIES: Warning System for Aviation Exposure to Solar Energetic Particles

★Invited Papers

*Tatsuhiko Sato1, Ryuho Kataoka2,3, Daikou Shiota4,5, Yuki Kubo4, Mamoru Ishii4, Hiroshi Yasuda6, Shoko Miyake7, InChun Park5, Yoshizumi Miyoshi5 (1.Japan Atomic Energy Agency, 2.National Institute of Polar Research, 3.SOKENDAI, 4.National Institute of Information and Communications Technology, 5.Nagoya University, 6.Hiroshima University, 7.National Institute of Technology, Ibaraki College)

Keywords:solar energetic particle, radiation exposure, space weather

A physics-based warning system of aviation exposure to solar energetic particles, WASAVIES, is improved to be capable of real-time and automatic analysis. In the improved system, the count rates of several neutron monitors (NM) at the ground level, as well as the proton fluxes measured by the GOES satellite are continuously downloaded at intervals of 5 min and used for checking the occurrence of ground level enhancement (GLE). When a GLE event is detected, the system automatically determines the model parameters for characterizing the profiles of each GLE event, and nowcasts and forecasts the radiation dose rates all over the world up to 24 h after the flare onset. A web-interface of WASAVIES (see picture below) was also developed, which broadcasts radiation dose rates due to cosmic-ray exposure for all over the world as well as on 9 selected flight routes at intervals of 5 min and 1 day during GLE and the other periods, respectively. It is planned to be in operation from March 2019 through the public server of NICT.