Researcher Information

Saito Hiroaki

Specially Appointed Assistant Professor

Deciphering the past, present, and future of Earth and planetary systems through numerical simulations

Department of Earth and Planetary Sciences, Cosmosciences


Earth and planetary origins, volatile component partitoning betweeb atmosphere and planetary interiors, disaster prevention applications of infrasound

FieldEarth and Planetary Science, Planetary Meteorology, Atmospheric Acoustics, Natural Disaster Science and Disaster Prevention
KeywordEarly Solar System, Volatile substances, Planet formation, Early Mars, Primitive atmosphere, Atmospheric dissipation, Infrasound, Natural disasters, Remote sensing, Tsunami, Volcanic eruption

Representative Achievements

Observation and simulation of atmospheric gravity waves exciting subsequent tsunami along the coastline of Japan after Tonga explosion event,
Yasuhiro Nishikawa, Masa-yuki Yamamoto, Kensuke Nakajima, Islam Hamama, Hiroaki Saito, Yoshihiro Kakinami, Masumi Yamada, Tung-Cheng Ho
Scientific Report, 2022, 12(22354)
Onset altitudes of co-seismic ionospheric disturbances determined by multiple distributions of GNSS TEC after the foreshock of the 2011 Tohoku Earthquake on 9 March 2011,
Yoshihiro Kakinami, Hiroaki Saito, Tetsuo Yamamoto, Chia-Hung Chen, Masa-yuki Yamamoto, Kensuke Nakajima, Jann-Yenq Liu, Shigeto Watanabe,
Earth and Space Science, 2021, 8(e2020EA001217)
Identification of the infrasound signals emitted by explosive eruption of Mt. Shinmoedake by three-dimensional ray tracing,
Hiroaki Saito, Tetsuo Yamamoto, Kensuke Nakajima, Kiyoshi Kuramoto, Masa-yuki Yamamoto,
The Journal of the Acoustical Society of America, 2021, 149(1) 591-598
D/H ratio in the interiors of rocky proto-planets accreting in the solar nebula,
Hiroaki Saito, Kiyoshi Kuramoto,
The Astrophysical Journal, 2020, 889(1) 40-47
Formation of a hybrid-type proto-atmosphere on mars accreting in the solar nebula,
Hiroaki Saito, Kiyoshi Kuramoto,
Monthly Notices of the Royal Astronomical Society, 2018, 475(1) 1274-1287
Self Introduction

I am originally from Chiba. When I was in elementary school, I remember being excited by the news of a comet colliding with Jupiter and the possibility of finding traces of life in Martian meteorites. I believe this excitement led me to pursue my current path. I would like to continue my research without forgetting this sense of wonder and excitement.

Academic background2008: B.S., Faculty of Science, Hokkaido University
2010: M.S., Graduate School of Science, Hokkaido University
2010: Systems Engineer at Fujitsu System Solutions
2013: Technical Staff (short-term contract) at the National Institute of Radiological Sciences
2016: Ph.D., Graduate School of Science, Hokkaido University, and obtained degree
2016: Researcher, Faculty of Science, Hokkaido University
2017: Assistant Professor, System Engineering Group, Kochi University of Technology
2019: Postdoctoral Researcher, Faculty of Science, Hokkaido University
2022-Present: Current position
Affiliated academic societyJapanese Society for Planetary Sciences, Japan Geoscience Union
ProjectOptical and Infrared Synergetic Telescopes for Education and Research
Aqua planetology (Grant-in-Aid for Scientific Research on Innovative Area)