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| Job title |
Head/The 3rd lab./Department of Climate and Geochemistry Research |
| E-mail |
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| Personal |
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| Expertise |
Atmospheric Chemistry ; Atmospheric greenhouse gases observation |
| Degree |
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| Publications |
Journal articles
- Y. TOHJIMA, Y. NIWA, K. TSUBOI, K. SAITO (2022):Did Atmospheric CO2 and CH4 Observation at Yonagunijima Detect Fossil-Fuel CO2 Reduction due to COVID-19 Lockdown?, Journal of the Meteorological Society of Japan, 100(2):437-444
- Inai,Y., R. Fujita, T. Machida, H. Matsueda, Y. Sawa, K. Tsuboi, K. Katsumata, S. Morimoto, S. Aoki, T. Nakazawa (2019):Seasonal characteristics of trace gases transports into the extratropical upper troposphere/lower stratosphere, Atmos. Chem. Phys., 19, 7073–7103
- Ishijima K., M. Takigawa, Y. Yamashita, H. Yashiro, C. Kodama, M. Satoh, K. Tsuboi, H. Matsueda, Y. Niwa, and S. Hirao (2018), Analysis of high radon-222 concentration events using multi-horizontal-resolution NICAM simulations, SOLA, 14, 111-115.
- Matsueda, H., K. Tsuboi, S. Takatsuji, T. Kawasaki, M. Nakamura, K. Saito, A. Takizawa, K. Dehara, S. Hosokawa (2018):Evaluation of a new methane calibration system at JMA for WCC Round Robin experiments, Papers in Meteorology and Geophysics, Vol.67, 57-67
- Ishidoya, S., K. Tsuboi, S. Murayama, H. Matsueda, N. Aoki, T. Shimosaka, H. Kondo, K. Saito (2017): Development of a Continuous Measurement System for Atmospheric O2/N2 Ratio Using a Paramagnetic Analyzer and Its Application in Minamitorishima Island, Japan, SOLA, Vol.13, 230-234
- K.Tsuboi, T. Nakazawa, H. Matsueda, T. Machida, S. Aoki, S. Morimoto, D.Goto, T. Shimosaka, K. Kato, N. Aoki, T. Watanabe, H. Mukai, Y.Tohjima, K. Katsumata, S. Murayama, S. Ishidoya, T. Fujitani, H. Koide, M.Takahashi, T. Kawasaki, A. Takizawa and Y. Sawa (2017):InterComparison Experiments for Greenhouse Gases Observation (iceGGO) in 2012–2016, Technical Reports of the Meteorological Research Institute No.79
- Tsuboi, K., H. Matsueda, Y. Sawa, Y. Niwa, M. Takahashi, S. Takatsuji, T. Kawasaki, T. Shimosaka, T. Watanabe, K. Kato (2016): Scale and stability of methane standard gas in JMA and comparison with MRI standard gas, Papers in Meteorology and Geophysics, Vol.66, 15-24
- Sawa, Y., T. Machida, H. Matsueda, Y. Niwa, K. Tsuboi, S. Murayama, S. Morimoto, S. Aoki, 2015: Seasonal changes of CO2, CH4, N2O, and SF6 in the upper troposphere/lower stratosphere over the Eurasian continent observed by commercial airliner. Geophys. Res. Lett., 42, 2001-2008. /doi:10.1002/2014GL062734
- Niwa, Y., K. Tsuboi, H. Matsueda, Y. Sawa, T. Machida, M. Nakamura, T. Kawasato, K. Saito, S. Takatsuji, K. Tsuji, H. Nishi, K. Dehara, Y. Baba, D. Kuboike, S. Iwatsubo, H. Ohmori, and Y. Hanamiya (2014): Seasonal Variations of CO2, CH4, N2O and CO in the Mid-troposphere over the Western North Pacific Observed using a C-130H Cargo Aircraft, J. Meteorol. Soc. Japan, 92(1), 50-70
- Ishidoya, S., K. Tsuboi, H. Matsueda, S. Murayama, S. Taguchi, Y. Sawa, Y. Niwa, K. Saito, K. Tsuji, H. Nishi, Y. Baba, S. Takatsuji, K. Dehara, and H. Fujiwara (2014): New Atmospheric O2/N2 Ratio Measurements over the Western North Pacific Using a Cargo Aircraft C-130H, SOLA, 10, 23-28
- Tsuboi, K., H. Matsueda, Y. Sawa, Y. Niwa, M. Nakamura, D. Kuboike, K. Saito, H. Ohmori, S. Iwatsubo, H. Nishi, Y. Hanamiya, K. Tsuji, and Y. Baba (2013): Evaluation of a new JMA aircraft flask sampling system and laboratory trace gas analysis system. Atmos. Meas. Tech., 6, 1257–1270
- Wada, A., H. Matsueda, S. Murayama, S. Taguchi, S. Hirao,
H. Yamazawa, J. Moriizumi, K. Tsuboi, Y. Niwa, and
Y. Sawa (2013): Quantification of emission estimates of CO2, CH4 and CO for East Asia derived from atmospheric radon-222 measurements over the western North Pacific, Tellus, Ser. B, 65, 18037
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