Works by Tsunogai, U.

Results: 21

Simultaneous determination of δ15N and δ18O of N2O and δ13C of CH4 in nanomolar quantities from a single water sample.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2010, v. 24, n. 7, p. 1085, doi. 10.1002/rcm.4483

By:

Hirota, A.;
Tsunogai, U.;
Komatsu, D. D.;
Nakagawa, F.

Publication type:

Article

The coral δN record of terrestrial nitrate loading varies with river catchment land use.

Published in:

2015

By:

Yamazaki, A.;
Watanabe, T.;
Tsunogai, U.;
Hasegawa, H.;
Yamano, H.

Publication type:

Report

Geophysical and geochemical observations on actively seeping hydrocarbon gases on the south-eastern Yellow Sea continental shelf.

Published in:

Geo-Marine Letters, 2004, v. 24, n. 1, p. 53

By:

K. S. Jeong;
J. H. Cho;
S. R. Kim;
S. Hyun;
U. Tsunogai

Publication type:

Article

Quantifying the effects of clear-cutting and strip-cutting on nitrate dynamics in a forested watershed using triple oxygen isotopes as tracers.

Published in:

Biogeosciences, 2014, v. 11, n. 18, p. 5411, doi. 10.5194/bg-11-5411-2014

By:

Tsunogai, U.;
Komatsu, D. D.;
Ohyama, T.;
Suzuki, A.;
Nakagawa, F.;
Noguchi, I.;
Takagi, K.;
Nomura, M.;
Fukuzawa, K.;
Shibata, H.

Publication type:

Article

Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the magnitude of isotopic disequilibrium.

Published in:

Biogeosciences, 2012, v. 9, n. 11, p. 4353, doi. 10.5194/bg-9-4353-2012

By:

Ishimura, T.;
Tsunogai, U.;
Hasegawa, S.;
Nakagawa, F.;
Oi, T.;
Kitazato, H.;
Suga, H.;
Toyofuku, T.

Publication type:

Article

Quantifying nitrate dynamics in an oligotrophic lake using △ 17O.

Published in:

Biogeosciences, 2011, v. 8, n. 3, p. 687, doi. 10.5194/bg-8-687-2011

By:

Tsunogai, U.;
Daita, S.;
Komatsu, D. D.;
Nakagawa, F.;
Tanaka, A.

Publication type:

Article

Volatile‐Rich Hydrothermal Plumes Over the Southern Central Indian Ridge, 24°49'S: Evidence for a New Hydrothermal Field Hosted by Ultramafic Rocks.

Published in:

Geochemistry, Geophysics, Geosystems: G3, 2022, v. 23, n. 10, p. 1, doi. 10.1029/2022GC010452

By:

Surya Prakash, L.;
John Kurian, P.;
Resing, J. A.;
Tsunogai, U.;
Srinivas Rao, A.;
Sen, K.;
Lupton, J. E.;
Baumberger, T.;
Prajith, A.;
Roy, P.

Publication type:

Article

Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in eastern Asia using Δ17O.

Published in:

Atmospheric Chemistry & Physics Discussions, 2009, v. 9, n. 6, p. 23073, doi. 10.5194/acpd-9-23073-2009

By:

Tsunogai, U.;
Komatsu, D. D.;
Daita, S.;
Kazemi, G. Abbas;
Nakagawa, F.;
Noguchi, I.;
Zhang, J.

Publication type:

Article

Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO2.

Published in:

Atmospheric Chemistry & Physics Discussions, 2007, v. 7, n. 6, p. 15723, doi. 10.5194/acpd-7-15723-2007

By:

Kawagucci, S.;
Tsunogai, U.;
Kudo, S.;
Nakagawa, F.;
Honda, H.;
Aoki, S.;
Nakazawa, T.;
Tsutsumi, M.;
Gamo, T.

Publication type:

Article

Technical Note: Determination of formaldehyde mixing ratios in polluted air with PTR-MS: laboratory experiments and field measurements.

Published in:

Atmospheric Chemistry & Physics Discussions, 2007, v. 7, n. 5, p. 12845, doi. 10.5194/acpd-7-12845-2007

By:

Inomata, S.;
Tanimoto, H.;
Kameyama, S.;
Tsunogai, U.;
Irie, H.;
Kanaya, Y.;
Wang, Z.

Publication type:

Article

Geophysical and geochemical evidence of large scale fluid flow within shallow sediments in the eastern Gulf of Mexico, offshore Louisiana.

Published in:

Geofluids, 2011, v. 11, n. 1, p. 34, doi. 10.1111/j.1468-8123.2010.00304.x

By:

Gay, A.;
Takano, Y.;
Gilhooly, W. P.;
Berndt, C.;
Heeschen, K.;
Suzuki, N.;
Saegusa, S.;
Nakagawa, F.;
Tsunogai, U.;
Jiang, S. Y.;
Lopez, M.

Publication type:

Article

Geological background of the Kairei and Edmond hydrothermal fields along the Central Indian Ridge: Implications of their vent fluids’ distinct chemistry.

Published in:

Geofluids, 2008, v. 8, n. 4, p. 239, doi. 10.1111/j.1468-8123.2008.00223.x

By:

KUMAGAI, H.;
NAKAMURA, K.;
TOKI, T.;
MORISHITA, T.;
OKINO, K.;
ISHIBASHI, J.-i.;
TSUNOGAI, U.;
KAWAGUCCI, S.;
GAMO, T.;
SHIBUYA, T.;
SAWAGUCHI, T.;
NEO, N.;
JOSHIMA, M.;
SATO, T.;
TAKAI, K.

Publication type:

Article

Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in Eastern Asia using Δ17O.

Published in:

Atmospheric Chemistry & Physics, 2010, v. 10, n. 4, p. 1809, doi. 10.5194/acp-10-1809-2010

By:

Tsunogai, U.;
Komatsu, D. D.;
Daita, S.;
Kazemi, G. A.;
Nakagawa, F.;
Noguchi, I.;
Zhang, J.

Publication type:

Article

Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO2.

Published in:

Atmospheric Chemistry & Physics, 2008, v. 8, n. 20, p. 6189, doi. 10.5194/acp-8-6189-2008

By:

Kawagucci, S.;
Tsunogai, U.;
Kudo, S.;
Nakagawa, F.;
Honda, H.;
Aoki, S.;
Nakazawa, T.;
Tsutsumi, M.;
Gamo, T.

Publication type:

Article

Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements.

Published in:

Atmospheric Chemistry & Physics, 2008, v. 8, n. 2, p. 273, doi. 10.5194/acp-8-273-2008

By:

Inomata, S.;
Tanimoto, H.;
Kameyama, S.;
Tsunogai, U.;
H. Irie;
Kanaya, Y.;
Wang, Z.

Publication type:

Article

Quantifying the effects of clear-cutting and strip-cutting on nitrate dynamics in a forested watershed using triple oxygen isotopes as tracers.

Published in:

Biogeosciences Discussions, 2014, v. 11, n. 5, p. 7413, doi. 10.5194/bgd-11-7413-2014

By:

Tsunogai, U.;
Komatsu, D. D.;
Ohyama, T.;
Suzuki, A.;
Nakagawa, F.;
Noguchi, I.;
Takagi, K.;
Nomura, M.;
Fukuzawa, K.;
Shibata, H.

Publication type:

Article

Tracing atmospheric nitrate in groundwater using triple oxygen isotopes: evaluation based on bottled drinking water.

Published in:

Biogeosciences Discussions, 2012, v. 9, n. 11, p. 16493, doi. 10.5194/bgd-9-16493-2012

By:

Tsunogai, U.;
Suzuki, A.;
Daita, S.;
Ohyama, T.;
Komatsu, D. D.;
Nakagawa, F.

Publication type:

Article

Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the vital effect.

Published in:

Biogeosciences Discussions, 2012, v. 9, n. 5, p. 6191, doi. 10.5194/bgd-9-6191-2012

By:

Ishimura, T.;
Tsunogai, U.;
Hasegawa, S.;
Nakagawa, F.;
Oi, T.;
Kitazato, H.;
Suga, H.;
Toyofuku, T.

Publication type:

Article

Sources, fate and geochemical dynamics of nitrate in an oligotrophic lake.

Published in:

Biogeosciences Discussions, 2010, v. 7, n. 5, p. 7227, doi. 10.5194/bgd-7-7227-2010

By:

Tsunogai, U.;
Daita, S.;
Komatsu, D. D.;
Nakagawa, F.;
Tanaka, A.

Publication type:

Article

Significance of N2 fixation in dissolved fractions of organic nitrogen.

Published in:

Biogeosciences Discussions, 2010, v. 7, n. 1, p. 765, doi. 10.5194/bgd-7-765-2010

By:

Konno, U.;
Tsunogai, U.;
Komatsu, D. D.;
Daita, S.;
Nakagawa, F.;
Tsuda, A.;
Matsui, T.;
Eum, Y.-J.;
Suzuki, K.

Publication type:

Article

Hydrothermal Methane Venting and Its Microbial Oxidation Along the Eastern Southwest Indian Ridge, 63.5°–68°E.

Published in:

Geophysical Research Letters, 2025, v. 52, n. 2, p. 1, doi. 10.1029/2024GL110958

By:

Surya Prakash, L.;
John Kurian, P.;
Sen, K.;
Tsunogai, U.;
Linsy, P.;
Shuhail, M.;
Roy, P.

Publication type:

Article

Works by Tsunogai, U.

Simultaneous determination of δ<sup>15</sup>N and δ<sup>18</sup>O of N<sub>2</sub>O and δ<sup>13</sup>C of CH<sub>4</sub> in nanomolar quantities from a single water sample.

The coral δN record of terrestrial nitrate loading varies with river catchment land use.

Geophysical and geochemical observations on actively seeping hydrocarbon gases on the south-eastern Yellow Sea continental shelf.

Quantifying the effects of clear-cutting and strip-cutting on nitrate dynamics in a forested watershed using triple oxygen isotopes as tracers.

Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the magnitude of isotopic disequilibrium.

Quantifying nitrate dynamics in an oligotrophic lake using △ <sup>17</sup>O.

Volatile‐Rich Hydrothermal Plumes Over the Southern Central Indian Ridge, 24°49'S: Evidence for a New Hydrothermal Field Hosted by Ultramafic Rocks.

Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in eastern Asia using Δ<sup>17</sup>O.

Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO<sub>2</sub>.

Technical Note: Determination of formaldehyde mixing ratios in polluted air with PTR-MS: laboratory experiments and field measurements.

Geophysical and geochemical evidence of large scale fluid flow within shallow sediments in the eastern Gulf of Mexico, offshore Louisiana.

Geological background of the Kairei and Edmond hydrothermal fields along the Central Indian Ridge: Implications of their vent fluids’ distinct chemistry.

Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in Eastern Asia using Δ<sup>17</sup>O.

Long-term observation of mass-independent oxygen isotope anomaly in stratospheric CO<sub>2</sub>.

Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements.

Quantifying the effects of clear-cutting and strip-cutting on nitrate dynamics in a forested watershed using triple oxygen isotopes as tracers.

Tracing atmospheric nitrate in groundwater using triple oxygen isotopes: evaluation based on bottled drinking water.

Variation in stable carbon and oxygen isotopes of individual benthic foraminifera: tracers for quantifying the vital effect.

Sources, fate and geochemical dynamics of nitrate in an oligotrophic lake.

Significance of N<sub>2</sub> fixation in dissolved fractions of organic nitrogen.

Hydrothermal Methane Venting and Its Microbial Oxidation Along the Eastern Southwest Indian Ridge, 63.5°–68°E.