論文 - 中川 書子
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Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in eastern Asia using Δ17O. 査読有り
Tsunogai, U., D.D. Komatsu, S. Daita, G.A. Kazemi, F. Nakagawa, I. Noguchi, and J. Zhang
Atmospheric Chemistry and Physics 10 巻 頁： 1809-1820 2010年
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Determination of total N2 fixation rates in the ocean taking into account both the particulate and filtrate fractions. 査読有り
Konno, U., U. Tsunogai, D.D. Komatsu, S. Daita, F. Nakagawa, A.Tsuda, T. Matsui, Y.-J. Eum and K. Suzuki
Biogeosciences 7 巻 頁： 2369-2377 2010年
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Simultaneous determination of δ15N and δ18O of N2O and δ13C of CH4 in nanomolar quantities from a single water sample. 査読有り
Hirota, A., U. Tsunogai, D. D. Komatsu, and F. Nakagawa
Rapid Commun. Mass Spectrom. 24 巻 頁： 1085-1092 2010年
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Enrichment of nitrous oxide in a water column in the Bering and Chukchi Sea area. 査読有り
Hirota, A., A. Ijiri, D.D. Komatsu, S.B. Ohkubo, F. Nakagawa, and U. Tsunogai
Mar. Chem 116 巻 頁： 47-53 2010年
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Enrichment of alkanes within a phytoplankton bloom during an in situ iron enrichment experiment in the western subarctic Pacific. 査読有り
Kameyama, S., U. Tsunogai, F. Nakagawa, M. Sasakawa, D.D. Komatsu, A. Ijiri, J. Yamaguchi, T. Horiguchi, H. Kawamura, A. Yamaguchi, and A. Tsuda
Mar. Chem. 115 巻 頁： 92-101 2009年
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Enrichment of adsorbed methane in authigenic carbonate concretions. 査読有り
Ijiri, A., U. Tsunogai, T. Gamo, F. Nakagawa, T. Sakamoto, and S. Saito
Geo-Marine Letters 29 巻 頁： 301-308 2009年
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Carbon isotopic characterization for the origin of excess methane in subsurface seawater. 査読有り
Sasakawa, M., U. Tsunogai, S. Kameyama, F. Nakagawa, Y. Nojiri, A. Tsuda
J. Geophys. Res. 113 巻 頁： C03012 2008年
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Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO2. 査読有り
Kawagucci, S., U. Tsunogai, S. Kudo, F. Nakagawa, H. Honda, S. Aoki, T. Nakazawa, M. Tsutsumi, and T. Gamo
Atmos. Chem. Phys. 8 巻 頁： 6189-6197 2008年
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Grain-scale heterogeneities in the stable carbon and oxygen isotopic compositions of the international standard calcite materials (NBS19, NBS18, IAEA-CO-1, and IAEA-CO-8). 査読有り
Ishimura, T., U. Tsunogai, and F. Nakagawa
Rapid Commun. Mass Spectrom. 22 巻 頁： 1925-1932 2008年
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Determination of the 15N/14N, 17O/16O, and 18O/16O ratios of nitrous oxide by using continuous-flow isotope ratio mass spectrometry. 査読有り
Komatsu, D.D., T. Ishimura, F. Nakagawa, and U. Tsunogai
Rapid Commun. Mass Spectrom. 22 巻 頁： 1587-1596 2008年
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Sensitive determinations of stable nitrogen isotopic composition of organic nitrogen through chemical conversion to N2O. 査読有り
Tsunogai, U., T. Kido, A. Hirota, S.B. Ohkubo, D.D. Komatsu, and F. Nakagawa
Rapid Commun. Mass Spectrom. 22 巻 頁： 345-354 2008年
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Assessment of winter fluxes of CO2 and CH4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method: a diagnosis of methane emission and implications for the regional carbon budget. 査読有り
Kim, Y.-S., N. Tanaka, F. Nakagawa, U. Tsunogai, M. Ueyama, Y. Harazono
Tellus 59B 巻 頁： 223-233 2007年
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Evidence for the Grazing Hypothesis: Grazing Reduces Phytoplankton Responses of the HNLC Ecosystem to Iron Enrichment in the Western Subarctic Pacific 査読有り
Tsuda A., S. Takeda, H. Saito, J. Nishioka, I. Kudo, Y. Nojiri, K. Suzuki, M. Uematsu, M.L. Wells, D. Tsumune, T. Yoshimura, T. Aono, T. Aramaki, W.P. Cochlan, M. Hayakawa, K. Imai, T. Isada, Y. Iwamoto, W. K. Johnson, S. Kameyama, S. Kato, H. Kiyosawa, Y. Kondo, M. Levasseur, R.J. Machida, I. Nagao, F. Nakagawa, T. Nakanishi, S. Nakatsuka, A. Narita, Y. Noiri, H. Obata, H. Ogawa, K. Oguma, T. Ono, T. Sakuragi, M. Sasakawa, M. Sato, A. Shimamoto, H. Takata, C.G. Trick, Y.W. Watanabe, C.S. Wong and N. Yoshie
J. Oceanography 63 巻 頁： 983-994 2007年
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安定同位体組成を指標に用いた大気-海洋間の物質循環解析
角皆 潤・中川書子・笹川基樹・亀山宗彦
環境循環系診断のための同位体トレーサー技術電子モノグラフ 2 巻 頁： 47-53 2006年
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Development of two-dimensional gas chromatography / isotope ratio mass spectrometry for the stable carbon isotopic analysis of C2-C5 non-methane hydrocarbons emitted from biomass burning 査読有り
Nara H., F. Nakagawa, and N. Yoshida
Rapid Commun. Mass Spectrom. 20 巻 頁： 241-247 2006年
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Hydrogen and carbon isotopic measurements of methane from agricultural combustion: Implications for isotopic signatures of global biomass burning sources. 査読有り
Yamada K., Y. Ozaki, F. Nakagawa, S. Sudo, H. Tsuruta, and N. Yoshida
J. Geophys. Res. 111 巻 頁： D16306 2006年
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Liquid CO2 venting on seafloor: Yonaguni IV Knoll hydrothermal system, Okinawa Trough. 査読有り
Konno, U., U. Tsunogai, F. Nakagawa, M. Nakaseama, J. Ishibashi, T. Nunoura, and K. Nakamura
Geophys. Res. Lett. 33 巻 頁： L16607 2006年
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Development of a multi-bottle gas-tight fluid sampler WHATS II for Japanese submersibles/ROVs. 査読有り
Saegusa, S., U. Tsunogai, F. Nakagawa, and S. Kaneko
Geofluids 6 巻 頁： 234-240 2006年
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Stable carbon isotopic analysis of atmospheric methyl chloride using CF-IRMS by using selective removal of unsaturated hydrocarbons. 査読有り
Komatsu D.D., U. Tsunogai, J. Yamaguchi, and F. Nakagawa
Rapid Commun. Mass Spectrom. 19 巻 頁： 477-483 2005年
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Stable isotopic compositions of methane and carbon monoxide in the Suiyo hydrothermal plume, Izu-Boni arc: tracers for microbial consumption/production. 査読有り
Tsunogai U., F. Nakagawa, T. Gamo and J. Ishibashi
Earth Planet. Sci. Lett. 237 巻 頁： 326-340 2005年