Associate Professor Hideo Sagawa

Area and Subject Taught Remote sensing of planetary atmosphere
Research Theme(s) Observational study of planetary atmosphere
Academic Degrees Ph. D., University of Tokyo.
Keywords for Research Field Planetary atmosphere, Planetary science, remote sensing, radiative transfer
Office Phone Number Not Public
e-mail E-mail

Research Overview

Most of the planets in our solar system have atmospheres in the outermost layer (even small moons have some tenuous atmospheres), and those atmospheres play key roles in determining the physical and chemical conditions of those planets and moons. My research interest is to understand planetary atmosphere with various observational techniques: spectroscopic and imaging observations using ground-based and space-born instruments. The development of models for radiative transfer in planetary atmosphere and inversion analysis is also included in the research targets.

Notable Publications and Works in the Last Three Years

  • Aoki, S.; Richter, M. J.; DeWitt, C.; Boogert, A.; Encrenaz, T.; Sagawa, H.; Nakagawa, H.; Vandaele, A. C.; Giuranna, M.; Greathouse, T. K.; Fouchet, T.; Geminale, A.; Sindoni, G.; McKelvey, M.; Case, M.; Kasaba, Y. (2018), Stringent upper limit of CH4 on Mars based on SOFIA/EXES observations, Astronomy & Astrophysics, Volume 610, id.A78, 9 pp.
  • Peralta, J.; Hueso, R.; Sanchez-Lavega, A.; Lee, Y. J.; Munoz, A. Garcia; Kouyama, T.; Sagawa, H.; Sato, T. M.; Piccioni, G.; Tellmann, S.; Imamura, T.; Satoh, T. (2017), Stationary waves and slowly moving features in the night upper clouds of Venus, Nature Astronomy, Volume 1, id. 0187.
  • Encrenaz, T.; Greathouse, T. K.; Richter, M. J.; DeWitt, C.; Widemann, T.; Bezard, B.; Fouchet, T.; Atreya, S. K.; Sagawa, H. (2016), HDO and SO2 thermal mapping on Venus. III. Short-term and long-term variations between 2012 and 2016, Astronomy & Astrophysics, Volume 595, id.A74, 15 pp.
  • Lee, Y. J.; Sagawa, H.; Haus, R.; Stefani, S.; Imamura, T.; Titov, D. V.; Piccioni, G. (2016), Sensitivity of net thermal flux to the abundance of trace gases in the lower atmosphere of Venus, Journal of Geophysical Research: Planets 121, pp. 1737-1752.