Shohei Hattori
Commendation
Atmospheric biogeochemical research on sulfur and nitrogen compounds using isotopologue analysis
A list of five major papers
- Hattori, S., Ishino, S., Suzuki, N., Nakazawa, F., Oyabu, I., Tsutaki, S., Hirabayashi, M., Noro, K., Takenaka, N., Kawamura, K., Yoshida, N., and Motoyama, H. (2024). Latitudinal difference in sulfate formation from methanesulfonate oxidation in Antarctic snow imprinted on 17O-excess signature. Applied Geochemistry, 162, 105901.
- Hattori, S., Li, Z., Yoshida, N., & Takeuchi, N. (2023). Isotopic Evidence for Microbial Nitrogen Cycling in a Glacier Interior of High-Mountain Asia. Environmental Science & Technology, 57(40), 15026–15036.
- Hattori, S., Iizuka, Y., Alexander, B., Ishino, S., Fujita, K., Zhai, S., Sherwen, T., Oshima, N., Uemura, R., Yamada, A., Suzuki, N., Matoba, S., Tsuruta, A., Savarino, J., and Yoshida, N. (2021). Isotopic evidence for acidity-driven enhancement of sulfate formation after SO₂ emission control. Science Advances, 7(19), eabd4610.
- Hattori, S., Kamezaki, K., Yoshida, N. (2020). Constraining the atmospheric OCS budget from sulfur isotopes. Proceedings of the National Academy of Sciences, USA, 117(34), 20447-20452.
- Hattori, S., Schmidt, J. A., Johnson, M. S., Danielache, S. O., Yamada, A., Ueno, Y., and Yoshida, N. (2013). SO₂ photoexcitation mechanism links mass-independent sulfur isotopic fractionation in cryospheric sulfate to climate-impacting volcanism. Proceedings of the National Academy of Sciences, USA, 110(44), 17656–17661.
Major achievements
Dr. Shohei Hattori has developed innovative methods for stable isotope/isotopologue measurements, primarily aimed at elucidating atmospheric and biogeochemical processes. In particular, regarding the atmospheric sulfur cycle, he has contributed to identifying the previously unrecognized anthropogenic source of carbonyl sulfide using an analytical method he originally developed. He also clarified the triple oxygen isotopic composition of sulfate in Greenland ice cores and elucidated the reasons why the decrease in sulfate aerosol concentrations has slowed despite recent reductions in sulfur dioxide emissions. Furthermore, by analyzing the nitrogen and triple oxygen isotopic composition of nitrate within mountain glaciers, he discovered that atmospherically derived reactive nitrogen is transformed by microbial activity and has accumulated in organic form for over a century. More recently, he developed a microanalytical method for determining the oxygen isotopic composition of methanesulfonate and phosphate using Orbitrap mass spectrometry. Through these original methods, Dr. Hattori has made internationally recognized contributions to understanding the atmospheric and biogeochemical cycles of light elements, particularly sulfur and nitrogen.
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Yoshio Takahashi
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