Latest Update：2020/02/03 18:26:59

NOJIRI Yukihiro

Researcher Name: NOJIRI Yukihiro

Div (Section) name/title: Center for Global Environmental Research／Group Leader

Research Subject: Geochemistry of atmospheric and aquatic environment

Degree(s): Doctor of Science, Chemistry

Professional Qualification(s): Chemistry

Environmental Speciality Field: global warming,ocean carbon cycles,green house gas measurement

Keyword(s): VOS observation,CO2 measurement,ocean carbon cycles,ocean surface carbon dioxide partial pressure,carbon dioxide capture and storage,green house gas inventory

Brief Description of Research: 1. CO2 flux at the surface ocean from ship-board observation
Ocean surface CO2 flux is measured by VOSs (volunteer observation ships) program in the north Pacific. NIES is operating CO2 measurement system on board cargo ships in the north Pacific from 1995 to the present. Results identified the distribution, seasonal and inter-annual change in CO2 source and sink intensity of the north Pacific. Program is still ongoing with two atmosphere/ocean VOSs and two atmosphere VOSs, in which collaborations with NIWA (New Zealand), CSIRO (Australia) are continuing. In 2002, collaboration with Professors D. Wallace and A. Kortzinger of University of Kiel was done to operate cargo ship CO2 observation in the north Atlantic, using CO2 system developed by Dr. Nojiri on board a car carrier between Europe and US, to identify the CO2 sink intensity of the north Atlantic. Observing pCO2 program with Gothenburg University is also continuing to operate pCO2 system on board Swedish Arctic survey vessel. These data sets are joining CDIAC (US) data set and newly designed collaboration of global scientists for ocean surface CO2 study database (SOCAT) under UNESCO/IOC, in which I am working the chair of Pacific regional activity.
2. Development of on board monitoring system about CO2 and related ocean biogeochemical parameters
I developed a novel pCO2 equilibrator for on board ship observation. The pCO2 equilibrator and CO2 system are operated for the monitoring program by VOSs in the Pacific and north Atlantic. NIES organized jointly with UNESCO/IOC ocean carbon program (International Ocean Carbon Coordination Program) of ocean pCO2 measurement systems. Two campaigns have been carried out in 2003 and 2009 utilizing a seawater pool facility in Japan. This facilitates global improvement of pCO2 observation technology and results in the increasing accuracy of CO2 flux estimation.
3. Biological impact of ocean acidification
From 2008, Ministry of Environment, Japan is funding a manipulation experiment as ‘Experimental study of ocean acidification impact on calcifiers’ examining impact of ocean acidification for marine organisms, which is leaded by me. I developed a precise pCO2 controlling system for manipulation experiment. I started collaboration with EU ocean acidification group of scientists (EPOCA) to have common knowledge about accurate laboratory set up for ocean acidification experiment.

Career: 1981 Scientist, Water Quality Measurement Laboratory, Division of Chemistry and Physics,
National Institute for Environmental Studies (NIES), Environment Agency of Japan
1990 Senior Scientist, Global Warming Research Laboratory,
Global Environment Research Group, NIES
1995 Head, Global Warming Research Laboratory, Global Environment Research Group, NIES
2001 Head, Carbon Cycle Research Laboratory, Climate Change Research Project, NIES
2004 Director for Environment and Energy, Secretariat of Council for Science and Technology Policy,
Cabinet Office, Government of Japan
2006 to present Vice Director, Center for Global Environmental Research, NIES
Manager, Greenhouse Gas Inventory Office of Japan
2008 to present Professor, Interdisciplinary graduate School of Science and Engineering, Tokyo Institute of Technology

Membership of Academic Society: The Geochemical Society of Japan,The Oceanographic Society of Japan,The Japanese Society of Limnology,The Japan Society for Analytical Chemistry (JSAC)

Research Subject

Fiscal Year: 2019
- 24708 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
- 24745 : Long-term Monitoring and Database for Global Environmental Research and Supporting for Related Activities
Fiscal Year: 2018
- 24291 : Study on multi-scale evaluation system for GHG variation and mitigation
- 24315 : Long-term monitoring and database for global environmental research and supporting for related activities
Fiscal Year: 2017
- 23837 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23877 : Long-term monitoring and database for global environmental research and supporting for related activities
Fiscal Year: 2016
- 23399 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23470 : Long-term monitoring and database for global environmental research and supporting for related activities
Fiscal Year: 2015
- 22992 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 23026 : Long-term monitoring and database for global environmental research and supporting for related activities
Fiscal Year: 2014
- 22580 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 22614 : Long-term monitoring and database for global environmental research and supporting for related activities
- 22670 : Development and maintenance of global environment database
- 22676 : Long-term, comprehensive observations of long-lived greenhouse gases and short-lived climate forcers in Asia and Oceania regions
- 22724 : Integrated observational study of oxygen and isotopes of carbon dioxide in the atmosphere to investigate the climate responses of the global carbon cycle
- 22920 : Atmospheric and Oceanic Monitoring
- 22929 : Development of the National Greenhouse Gas Inventory
Fiscal Year: 2013
- 22164 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 22198 : Long-term monitoring and database for global environmental research and supporting for related activities
- 22262 : Long-term, comprehensive observations of long-lived greenhouse gases and short-lived climate forcers in Asia and Oceania regions
- 22295 : Long-term observation of oxygen and isotopes of carbon dioxide in the atmosphere to evaluate the global budget of carbon dioxide
- 22362 : Development and maintenance of global environment database
- 22379 : Atmospheric and Oceanic Monitoring
- 22539 : Promotion of International Database of Ocean Surface pCO2 and Use for Basin Scale Estimation of Ocean CO2 Sink and Sources
- 22553 : Development of the National Greenhouse Gas Inventory
Fiscal Year: 2012
- 21735 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 21769 : Long-term Monitoring and database for Global Environmental Research and supporting for related activities
- 21788 : Long-term, comprehensive observations of long-lived greenhouse gases and short-lived climate forcers in Asia and Oceania regions
- 21793 : Long-term observation of oxygen and isotopes of carbon dioxide in the atmosphere to evaluate the global budget of carbon dioxide
- 21896 : Development and maintenance of global environment database
- 22114 : Development of the National Greenhouse Gas Inventory
- 22118 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2011
- 21284 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 21327 : Long-term Monitoring and database for Global Environmental Research and supporting for related activities
- 21404 : Development and maintenance of global environment database
- 21474 : Development of the National Greenhouse Gas Inventory
- 21483 : Study on long term observation of trace greenhouse gases in the Asia-Oceania regions
- 21562 : Long-term observation of oxygen and isotopes of carbon dioxide in the atmosphere to evaluate the global budget of carbon dioxide
- 21595 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2010
- 20857 : Long-term observation of oxygen and isotopes of carbon dioxide in the atmosphere to evaluate the global budget of carbon dioxide
- 20890 : Study on long term observation of trace greenhouse gases in the Asia-Oceania regions
- 21220 : Development, analysis of the National Greenhouse Gas Inventory and its utilization for measures on climate change
- 21221 : Experimental study of ocean acidification impact on benthic calcifiers
- 21222 : Study for functional data base of ocean surface CO2 observation and variability analysis in the Pacific Ocean
- 21223 : Support for coordination core of earth observation activities about global warming
- 21224 : Development of Global Warming Mitigation Technologies in Fisheries
- 21227 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2009
- 20544 : Long-term observation of oxygen and isotopes of carbon dioxide in the atmosphere to evaluate the global budget of carbon dioxide
- 20617 : Atmospheric and Oceanic Monitoring
- 20626 : Support for coordination core of earth observation activities about global warming
- 20714 : Study on long term observation of trace greenhouse gases in the Asia-Oceania Regions
- 20720 : Development, analysis of the National Greenhouse Gas Inventory and its utilization for measures on climate change
- 20729 : Development for monitoring technology related to global warming
- 20747 : Development of carbon dioxide sensor and basic technologies for oceanic carbon dioxide observation
- 20748 : Experimental study of ocean acidification impact on benthic calcifiers
- 20749 : Study for functional data base of ocean surface CO2 observation and variability analysis in the Pacific Ocean
Fiscal Year: 2008
- 20223 : Experimental study of ocean acidification impact on benthic calcifiers
- 20224 : Study for functional data base of ocean surface CO2 observation and variability analysis in the Pacific Ocean
- 20226 : Development, analysis of the National Greenhouse Gas Inventory and its utilization for measures on climate change
- 20291 : Development of carbon dioxide sensor and basic technologies for oceanic carbon dioxide observation
- 20304 : Support for coordination core of earth observation activities about global warming
- 20308 : Observation of oxygen and isotopes of carbon dioxide in the atmosphere for the detection of the long-term change of the CO2 sinks by land ecosystem and ocean
- 20334 : Atmospheric and Oceanic Monitoring
- 20350 : Study on long term observation of trace greenhouse gases in the Asia-Oceania Regions
Fiscal Year: 2007
- 10376 : Atmospheric and Oceanic Monitoring
- 10406 : Observation of oxygen and isotopes of carbon dioxide in the atmosphere for the detection of the long-term change of the CO2 sinks by land ecosystem and ocean
- 10436 : CO2･O2 budget between atmosphere and ocean in the Western Pacific
- 10464 : Development of carbon dioxide sensor and basic technologies for oceanic carbon dioxide observation
- 10570 : Support for coordination core of earth observation activities about global warming
- 10627 : Development, analysis of the National Greenhouse Gas Inventory and its utilization for measures on climate change
Fiscal Year: 2006
- 10023 : Atmospheric and Oceanic Monitoring
- 10067 : Distribution and sources of non-CO2 greenhouse gases in the Western Pacific
- 10099 : Observation of oxygen and isotopes of carbon dioxide in the atmosphere for the detection of the long-term change of the CO2 sinks by land ecosystem and ocean
- 10158 : CO2･O2 budget between atmosphere and ocean in the Western Pacific
- 10185 : Development of carbon dioxide sensor and basic technologies for oceanic carbon dioxide observation
- 10304 : Support for coordination core of earth observation activities about global warming
- 10361 : Development, analysis of the National Greenhouse Gas Inventory and its utilization for measures on climate change
Fiscal Year: 2005
- 9328 : Global Environmental Monitoring
- 9538 : Distribution and sources of non-CO2 greenhouse gases in the Western Pacific
- 9570 : Observation of oxygen and isotopes of carbon dioxide in the atmosphere for the detection of the long-term change of the CO2 sinks by land ecosystem and ocean
- 9653 : CO2･O2 budget between atmosphere and ocean in the Western Pacific
Fiscal Year: 2004
- 8935 : Global Environmental Monitoring
- 9320 : Observation of oxygen and isotopes of carbon dioxide in the atmosphere for the detection of the long-term change of the CO2 sinks by land ecosystem and ocean
- 9327 : Development of carbon dioxide sensor and basic technologies for oceanic carbon dioxide observation
Fiscal Year: 2003
- 8599 : Global Environmental Monitoring
- 8650 : Effect of iron fertilization as an ocean carbon sequestration to oceanic ecosystem
- 8661 : Analysis of temporal variability of global CO2 sink by using oxygen and isotope ratio in the atmosphere
- 8756 : Estimation of sink capacity of anthropogenic carbon dioxide in the Pacific Ocean
- 8836 : Measurement of radiocarbon in dissolved organic carbon (DOC) in seawater
- 8858 : Method and data standardization for the ocean CO2 observation
Fiscal Year: 2002
- 8306 : Global Environmental Monitoring
- 8311 : Ocean time series study of biogeochemical processes in the western North Pacific
- 8432 : Estimation of sink capacity of anthropogenic carbon dioxide in the Pacific Ocean
- 8433 : Effect of iron fertilization as an ocean carbon sequestration to oceanic ecosystem
- 8444 : Analysis of temporal variability of global CO2 sink by using oxygen and isotope ratio in the atmosphere
Fiscal Year: 2001
- 8000 : Global Environmental Monitoring
- 8010 : Ocean time series study of biogeochemical processes in the western North Pacific
- 8216 : B-9 Estimation of sink capacity of anthropogenic carbon dioxide in the Pacific Ocean<br>(1) Estimation of net flux of carbon dioxide in the Pacific Ocean from data analysis of carbon dioxide in surface seawater<br>(4) Standardization of chemical analysis of carbon dioxide species in seawater designed for data integration of oceanic carbon dioxide data
- 8217 : B-57 Effect of iron fertilization as an ocean carbon sequestration to oceanic ecosystem (3) Effect of iron fertilization to seawater carbon system
- 8227 : Analysis of temporal variability of global CO2 sink by using oxygen and isotope ratio in the atmosphere

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Research Result (Publication)

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Original Paper
Other Publications

Original Paper
Six years of atmospheric CO2 observations at Mt. Fuji recorded with a battery-powered measurement system

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Nojiri Y.
Title : , Atmospheric Measurement Techniques, 10:667-680 (2017)
Original Paper
Intraspecific variations in responses to ocean acidification in two branching coral species

Presenter : Sekizawa A., Uechi H., Iguchi A., Nakamura T., Kumagai N., Suzuki A., Sakai K., Nojiri Y.
Title : , Marine Pollution Bulletin, 122:282-287 (2017)
Original Paper
Emission factors of CO2, CO and CH4 from Sumatran peatland fires in 2013 based on shipboard measurements

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Title : , Tellus, 69(1): (2017)
Original Paper
Long-term variability of surface nutrient concentrations in the North Pacific

Presenter : Yasunaka S., Ono T., Nojiri Y., Whitney F.A., Wada C., Murata A., Nakaoka S., Hosoda S.
Title : , Geophysical Research Letters, 43:3389-3397 (2016)
Original Paper
A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT)

Presenter : Dorothee C. E. Bakker, Benjamin Pfeil, Camilla S. Landa, Nicolas Metzl, Kevin M. O’Brien, Are Olsen, Karl Smith, Cathy Cosca, Harasawa S., Stephen D. Jones, Nakaoka S., Nojiri Y., Ute Schuster, Tobias Steinhoff, Colm Sweeney, Taro Takahashi, Bronte Tilbrook, Wada C., et al.
Title : , Earth System Science Data, 8:383-413 (2016)
Original Paper
Surface ocean CO2 in 1990-2011 modelled using a feed-forward neural network

Presenter : Zeng J., Nojiri Y., Nakaoka S., Nakajima H., Shirai T.
Title : , Geoscience Data Journal, 2:47-51 (2015)
Original Paper
Reconstructing the Carbon Dioxide Absorption Patterns of World Oceans Using a Feed-Forward Neural Network: Software Implementation and Employment Techniques

Presenter : Zeng J., Nakajima H., Nojiri Y., Nakaoka S.
Title : , Environmental Software Systems, 11th IFIP WG 5.11 International Symposium, ISESS 2015, 417-425 (2015)
Original Paper
ENSO-related variability in latitudinal distribution of annual mean atmospheric potential oxygen (APO) in the equatorial Western Pacific

Presenter : Tohjima Y., Terao Y., Mukai H., Machida T., Nojiri Y., Maksyutov S.
Title : , Tellus-B, 67: (2015)
Original Paper
North Pacific dissolved inorganic carbon variations related to the Pacific Decadal Oscillation

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Title : , Geophysical Research Letters, 41:1005-1011 (2014)
Original Paper
Negative effects of ocean acidification on two crustose coralline species using genetically homogeneous samples

Presenter : Kato A., Hikami M., Kumagai N., Suzuki A., Nojiri Y., Sakai K.
Title : , Marine Environmental Research, 94:1-6 (2014)
Original Paper
A Global Surface Ocean fCO2 Climatology Based on a Feed-Forward Neural Network

Presenter : Zeng J., Nojiri Y., Landschützer P., Telszewski M., Nakaoka S.
Title : , Journal of Atmospheric and Oceanic Technology , 31(8):1838-1849 (2014)
Original Paper
Emissions of methane from offshore oil and gas platforms in Southeast Asia

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Title : , Scientific Reports, 4(6503): (2014)
Original Paper
Mapping of sea surface nutrients in the North Pacific: Basin-wide distribution and seasonal to interannual variability

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Whitney A. F., Telszewski M.
Title : , Journal of Geophysical Research: Oceans, 119:7756-7771 (2014)
Original Paper
Monthly maps of Sea Surface Dissolved Inorganic Carbon in the North Pacific: Basin-wide Distribution and Seasonal Variation

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Title : , Journal of Geophysical Research, 118(8):3737-3977 (2013)
Original Paper
Estimating temporal and spatial variation of ocean surface pCO2 in the North Pacific using a self-organizing map neural network technique

Presenter : Nakaoka S., Telszewski M, Nojiri Y., Yasunaka S., Miyazaki C., Mukai H., Usui N.
Title : , Biogeosciences, 10:6093-6106 (2013)
Other Publications
A Global Environmental Database Project at the National Institute for Environmental Studies and its Contribution to DIAS/GRENE

Presenter : Nakajima H., Shirai T., Saigusa N., Nojiri Y., Machida T., Mukai H.
Title : , International Forum on Polar Data Activities in Global Data Systems, 84-86 (2013)
Original Paper
Detection of Radioactive 35S at Fukushima and other Japanese sites

Presenter : Priyadarshi A., Falkenthal J., Thiemens M., Yoshida N., Toyoda S., Yamada K., Mukotaka A., Fujii A., Uematsu M., Hatakeyama S., Noguchi I., Nojiri Y., Tanimoto H.
Title : , Journal of Geophysical Research: Atmospheres, 118(2):1020-1027 (2013)
Original Paper
Climate impacts on the structures of the North Pacific air-sea CO2 flux variability

Presenter : Valsala V., Maksyutov S., Telszewski M., Nakaoka S., Nojiri Y., Ikeda M., Murtugudde R.
Title : , Biogeosciences, 9(1):477-492 (2012)
Original Paper
Observation of atmospheric oxygen/nitrogen ratio aboard a cargo ship using gas chromatography/thermal conductivity detector

Presenter : Yamagishi H., Tohjima Y., Mukai H., Nojiri Y., Miyazaki C., Katsumata K.
Title : , Journal of Geophysical Research - Atmospheres, 117:D04309 (2012)
Original Paper
Long-term variation of atmospheric methyl iodide and its link to global environmental change

Presenter : Yokouchi Y., Nojiri Y., Toom-Sauntry D., Fraser P., Inuzuka Y., Tanimoto H., Nara H., Murakami R., Mukai H.
Title : , Geophysical Research Letters, 39:L23805 (2012)
Original Paper
Effect of air composition (N2, O2, Ar, and H2O) on CO2 and CH4 measurement by wavelength-scanned cavity ring-down spectroscopy: calibration and measurement strategy

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Katsumata K., Rella C. W.
Title : , Atmospheric Measurement Techniques, 5:2689-2701 (2012)
Original Paper
Analysis of seasonality and annual mean distribution of atmospheric potential oxygen (APO) in the Pacific region

Presenter : Tohjima Y., Minejima C., Mukai H., Machida T., Yamagishi H., Nojiri Y.
Title : , Global Biogeochem Cycles, 26:GB4008 (2012)
Climate impacts on the structures of the North Pacific air-sea CO2 flux variability

Presenter : Valsala V., Maksyutov S., Maciej T. , Nakaoka S., Nojiri Y., Ikeda M., Murtugudde R.
Title : , Biogeosciences Discussions, 8(3):4239-4280 (2011)
Original Paper
CO emissions from biomass burning in South-east Asia in the 2006 El nino year: shipboard and AIRS satellite observations

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Zeng J., Tohjima Y., Machida T.
Title : , Environmental Chemistry, 8(2):213-223 (2011)
Original Paper
Onboard measurement system of atmospheric carbon monoxide in the Pacific by voluntary observing ships

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Machida T., Tohjima Y.
Title : , Atmospheric Measurement Techniques, 4(11):2495-2507 (2011)
Original Paper
Interannual variability and trends in atmospheric methane over the western Pacific from 1994 to 2010

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Title : , Journal of Geophysical Research, 116:D14303 (2011)
Original Paper
Preliminary results of radiocarbon monitoring in the surface waters of the North Pacific

Presenter : Aramaki T., Nojiri Y., Mukai H., Kushibashi S., Uchida M., Shibata Y.
Title : , Nucl.Instrum.Methods Phys.Res.,B, 268(7/8):1222-1225 (2010)
Original Paper
Dynamics and elemental stoichiometry of carbon, nitrogen, and phosphorus in particulate and dissolved organic pools during a phytoplankton bloom induced by in situ iron enrichment in the western subarctic Pacific(SEEDS-II)

Presenter : Yoshimura T., Ogawa H., Imai K., Aramaki T., Nojiri Y., Nishioka J., Tsuda A.
Title : , Deep-Sea Res.II, 56(26):2863-2874 (2009)
Original Paper
Behavior of particulate materials during iron fertilization experiments in the Western Subarctic Pacific(SEEDS and SEEDS II)

Presenter : Aramaki T., Nojiri Y., Imai K.
Title : , Deep-Sea Res.II, 56(26):2875-2888 (2009)
Original Paper
Physical behaviors of the iron-fertilized patch in SEEDS II

Presenter : Tsumune D., Nishioka J., Shimamoto A., Watanabe Y.W., Aramaki T., Nojiri Y., Takeda S., Tsuda A., Tsubono T.
Title : , Deep-Sea Res.II, 56(26):2948-2957 (2009)
Original Paper
Primary productivity, bacterial productivity and nitrogen uptake in response to iron enrichment during the SEEDS II

Presenter : Kudo I., Noiri Y., Cochlan W.P., Suzuki K., Aramaki T., Ono T., Nojiri Y.
Title : , Deep-Sea Res.II, 56(26):2755-2766 (2009)
Original Paper
Biogeochemical cycling of N and Si during the mesoscale iron-enrichment experiment in the western subarctic Pacific(SEEDS-II)

Presenter : Saito H., Tsuda A., Nojiri Y., Aramaki T., Ogawa H., Yoshimura T., Imai K., Kudo I., Nishioka J., Ono T., Suzuki K.
Title : , Deep-Sea Res.II, 56(26):2852-2862 (2009)
Original Paper
Atmospheric O2/N2 measurements at two Japanese sites: estimation of global oceanic and land biotic carbon sinks and analysis of the variations in atmospheric potential oxygen(APO)

Presenter : Tohjima Y., Mukai H., Nojiri Y., Yamagishi H., Machida T.
Title : , Tellus B, 60(2):213-225 (2008)
Original Paper
Global distribution and seasonal concentration change of methyl iodide in the atmosphere

Presenter : Yokouchi Y., Osada K., Wada M., Hasebe F., Agama M., Murakami R., Mukai H., Nojiri Y., Inuzuka Y., Toom-Sauntry D., Fraser P.
Title : , J.Geophys.Res., 113:D18311 (2008)
Evidence for the grazing hypothesis: grazing reduces phytoplankton responses of the HNLC ecosystem to iron enrichment in the western subarctic Pacific(SEEDS II)

Presenter : Tuda A.(*1), Takeda S.(*1), Saito H.(*2), Nishioka J.(*3), Kudo I.(*3), Nojiri Y., Suzuki K.(*3), Uematsu M.(*1), Wells M.L.(*4), Aramaki T.
Title : , J.Oceanogr., 63(6):983-994 (2007)
Increased net CO2 outgassing in the upwelling region of the southern Bering Sea in a period of variable marine climate between 1995 and 2001

Presenter : Fransson A.(*1), Chierici M.(*1), Nojiri Y.
Title : , J.Geophys.Res., 111:C08008 (2006)
Basin-scale pCO2 distribution using satellite sea surface temperature,Chl a,and climatological salinity in the North Pacific in spring and summer

Presenter : Sarma V.V.S.S.(*1), Saino T.(*1), Sasaoka K.(*2), Nojiri Y., Ono T.(*3), Ishii M.(*4), Inoue H.Y.(*5), Matsumoto K.(*2)
Title : , Global Biogeochem.Cycles, 20:GB3005 (2006)
Correlations and emission ratios among bromoform,dibromochloromethane,and dibromomethane in the atmosphere

Presenter : Yokouchi Y., Hasebe F.(*1), Fujiwara M.(*1), Takashima H.(*2), Shiotani M.(*2), Nishi N.(*2), Kanaya Y.(*3), Hashimoto S.(*4), Fraser P.(*5), Toom-Sauntry D.(*6), Mukai H., Nojiri Y.
Title : , J.Geophys.Res., 110:D23309 (2005)
First measurements of the latitudinal atmospheric O2 and CO2 distributions across the western Pacific

Presenter : Tohjima Y., Mukai H., Machida T., Nojiri Y., Gloor M.(*1)
Title : , Geophys.Res.Lett., 32:L17805 (2005)
The decline and fate of an iron-induced subarctic phytoplankton bloom

Presenter : Boyd P.W.(*1), Law C.S.(*2), Wong C.S.(*3), Nojiri Y., Tsuda A.(*4), Levasseur M.(*5), Takeda S.(*4), Rivkin R.(*6), Harrison P.J.(*7), Strzepek R.(*1)
Title : , Nature, 428:549-553 (2004)
A mesoscale iron enrichment in the Western subarctic Pacific induces a large centric diatom bloom

Presenter : Tsuda A.(*1), Takeda S.(*2), Saito H.(*3), Nishioka J.(*4), Nojiri Y., Kudo I.(*5), Kiyosawa H.(*6), Shiomoto A.(*7), Imai K.(*8), Ono T.
Title : , Science, 300:958-961 (2003)
Oceanic suess effect of delta13C in subpolar region-the North Pacific

Presenter : Tanaka T.(*1), Watanabe Y.W.(*1), Watanabe S.(*1), Noriki S.(*1), Tsurushima N.(*2), Nojiri Y.
Title : , Geophys.Res.Lett., 30(22):OCE5-1-OCE5-4 (2003)
Gas-chromatographic measurements of the atmospheric oxygen/nitrogen ratio at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Tohjima Y., Mukai,H., Machida,T., Nojiri,Y.
Title : , J.Geophys.Lett., 30(12):1653-1656 (2003)
Production of methane from alasses in eastern Siberia-implications from its 14C and stable isotopic compositions

Presenter : Nakagawa F.(*1), Yoshida N.(*1), Nojiri Y., Makariv V.N.(*2)
Title : , Global Biogeochem.Cycles, 16(3):10.1029/2000GB001384 (2002)
Temporal and spatial variability of chlorophyll-a in the western subarctic Pacific determined from satellite and ship observations from 1997 to 1999

Presenter : Sasaoka K.(*1), Saitoh S.(*2), Asanuma I.(*1), Imai K.(*3), Honda M.(*4), Nojiri Y., Saino T.(*5)
Title : , Deep Sea Res.II, 49:5557-5576 (2002)
The biological pump in the northwestern North Pacific based on fluxes and maijor components of particulate matter obtained by sediment-trap experiments(1997-2000)

Presenter : Honda M.C.(*1), Imai K.(*2), Nojiri Y., Hoshi F.(*1), Sugawara T.(*3), Kusakabe M.(*3)
Title : , Deep Sea Res.II, 49:5595-5625 (2002)
Seasonal changes in nutrients,chlorophyll a and the phytoplankton assemblage of the western subarctic gyre in the Pacific Ocean

Presenter : Mochizuki M.(*1), Shiga N.(*1), Saito M.(*1), Imai K.(*2), Nojiri Y.
Title : , Deep Sea Res.II, 49:5421-5439 (2002)
Seasonal variability of picophytoplankton and bacteria in the western subarctic Pacific Ocean at Station KNOT

Presenter : Liu H.(*1), Imai K.(*2), Suzuki K.(*1), Nojiri Y., Tsurushima N.(*3), Saino T.(*1)
Title : , Deep Sea Res.II, 49:5409-5420 (2002)
Time series of seasonal variation of primary productivity at station KNOT (44ｰN, 155ｰE) in the sub-arctic western North Pacific

Presenter : Imai K.(*1), Nojiri Y., Tsurushima N.(*2), Saino T.(*3)
Title : , Deep Sea Res.II, 49:5395-5408 (2002)
Seasonal variations of carbon dioxide system and nutrients in the surface mixed layer at KNOT(44ｰN,155ｰE) in the subarctic western North Pacific

Presenter : Tsurushima N.(*1), Nojiri Y., Imai K.(*2), Watanabe S.(*3)
Title : , Deep Sea Res.II, 49:5377-5394 (2002)
Seasonal cycles of nutrients and dissolved inorganic carbon at high and mid latitudes in the North Pacific Ocean during the Skaugran cruises-determination of new production and nutrient uptake ratios

Presenter : Wong C.S.(*1), Waser N.A.D.(*2), Nojiri Y., Whitney F.A.(*1), Page J.S.(*1), Zeng J.(*3)
Title : , Deep Sea Res.II, 49:5317-5338 (2002)
Production mechanism and global budget of N2O inferred from its isotopomers in the western North Pacific

Presenter : Toyoda S.(*1), Yoshida N.(*1), Miwa T.(*1), Matsui Y.(*1), Yamagishi H.(*1), Tsunogai U.(*2), Nojiri Y., Tsurushima N.(*3)
Title : , Geophys.Res.Lett., 29(3):7-1-7-4 (2002)
Global sea-air CO2 flux based on climatological surface ocean pCO2,and seasonal biological and temperature effects

Presenter : Takahashi T.(*1), Sutherland S.C.(*1), Sweeney C.(*1), Poisson A.(*2), Metzl N.(*2), Tilbrook B.(*3), Bates N.(*4), Wanninkhof R.(*5), Feely R.A.(*5), Nojiri Y.
Title : , Deep-Sea Res.II, 49:1601-1622 (2002)
Seasonal and interannual variability in the distribution of surface nutrients and dissolved inorganic carbon in the Northern North Pacific-influence of EI Nino

Presenter : Wong C.S.(*1), Waser N.A.D.(*2), Nojiri Y., Whitney F.A.(*1), Page J.S.(*1), Zeng J.
Title : , J.Oceanogr., 58:227-243 (2002)
Original Paper
A comparison of ΔρCO2 distributions in the northern North Pacific using results from a commercial vessel in 1995-1999

Presenter : Zeng J., Nojiri Y., Murphy, Wong, Fujinuma Y.
Title : , Deep-Sea Res.II, 40(24/25):5303-5315 (2002)
Atmospheric methyl iodide:high correlation with SST(Surface Seawater Temperature) and its implications on the Sea-to-air flux

Presenter : , NOJIRI Yukihiro, Barrie L.A.(*1), Sauntry D.T.(*1), Fujinuma Y.
Title : , J.Geophys.Res., 106(D12):661-668 (2001)
Latitudinal Distribution of Atmospheric Methyl Bromide:Measurements and Modeling

Presenter : , MACHIDA Toshinobu, NOJIRI Yukihiro
Title : , Geophys.Res.Lett., 27:697‐700 (2000)
A strong source of methyl chloride to the atmosphere from tropical coastal land

Presenter : , MACHIDA Toshinobu, NOJIRI Yukihiro
Title : , Nature, 403:295‐298 (2000)
Hateruma Station,Japan

Presenter : MACHIDA Toshinobu, NOJIRI Yukihiro, MUKAI Hitoshi
Title : , WMO WDCGG DATA REP., (21):16‐17 (2000)
Cape Ochi-Ishi Station,Japan

Presenter : MACHIDA Toshinobu, NOJIRI Yukihiro, MUKAI Hitoshi
Title : , WMO WDCGG DATA REP., (21):14‐15 (2000)
Methane emission to the atmosphere and cycling in a shallow eutrophic lake

Presenter : , NOJIRI Yukihiro
Title : , Arch.Hydrobiol., 144(4):383‐407 (1999)
Oxidation of dissolved methane in a eutrophic,shallow lake:Lake Kasumigaura,Japan

Presenter : , NOJIRI Yukihiro
Title : , Limnol.Oceanogr., 43:471‐480 (1998)
Dynamics of dissolved methane and methane oxidation in dimictic Lake Nojiri during winter

Presenter : , NOJIRI Yukihiro, TAKAMURA Noriko
Title : , Limnol.Oceanogr., 43(1):10‐17 (1998)
Dynamics of Attached Bacteria at the Water-Sediment Interface in a Mesotrophic Swampy Bog of Japan

Presenter : NOJIRI Yukihiro
Title : , J.Oceanogr., 54:179‐184 (1998)
Calculation of CO2 flux from forest soil using 222Rn calibrated method

Presenter : NOJIRI Yukihiro
Title : , Agric.Forest Meteorol., 87:301‐311 (1998)
Distribution of methyl iodide,ethyl iodide,bromoform,and dibromomethane over the ocean (east and southeast Asian seas and the western Pacific)

Presenter : Yokouchi Y., Nojiri Y., Mukai H.
Title : , J.Geophysi.Res., 102(D7):8805‐8809 (1997)
Ecosystem structure of a boiling spring with high bacterial production on Mt.Tateyama,Japan

Presenter : NOJIRI Yukihiro
Title : , Arch.Hydrobiol., 136:563‐574 (1996)
Fresh water seepage and pore water recycling on the seafloor:Sagami trough subduction zone,Japan

Presenter : NOJIRI Yukihiro
Title : , Earth Planet.Sci.Lett., 138:157‐168 (1996)
Picophytoplankton biomass in relation to lake trophic state and the TN:TP ratio of lake water in Japan

Presenter : NOJIRI Yukihiro, TAKAMURA Noriko
Title : , J.Phycol., 30:439‐444 (1994)
Application of gas chromatography-combustion-isotope ratio mass spectrometry to carbon isotopic analysis of methane and carbon monoxide in environmental samples

Presenter : NOJIRI Yukihiro, MUKAI Hitoshi
Title : , Anal.Chim.Acta, 289:195‐204 (1994)
Helium and carbon geochemistry of hydrothermal fluids from the North Fiji Basin spreading ridge (Southwest Pacific)

Presenter : NOJIRI Yukihiro
Title : , Earth Planet.Sci.Lett., 128:183‐197 (1994)
Fluctuation of chemical compositions of the phase-separated hydrothermal fluid from the North Fiji Basin Ridge

Presenter : NOJIRI Yukihiro
Title : , Mar.Geol., 116:215‐226 (1994)
Seasonal and spatial variations of dissolved nitrogenous nutrient concentrations in hypertrophic shallow lake, with special reference to dissolved organic nitrogen

Presenter : NOJIRI Yukihiro
Title : , Verh.Int.Verein.Limnol., 25:187‐192 (1993)
Seasonal variations in dissolved nitrous oxide concentrations in a eutrophic shallow lake without anaerobic layer

Presenter : NOJIRI Yukihiro
Title : , Geochem.J., 27:117‐123 (1993)
An estimate of CO2 flux in lake Nyos, Cameroon

Presenter : NOJIRI Yukihiro
Title : , Limnol.Oceanogr., 38:739‐752 (1993)
Studies on methods for long-term monitoring of environmental pollutants in a remote region-lake Mashu, Japan

Presenter : TANAKA Atsushi, NOJIRI Yukihiro, , Kawai T.
Title : , Water Sci.Technol., 25(11):213‐220 (1992)
Phytoplankton species shift accompanied by transition from nitrogen dependence to phosphorus dependence of primary production in Lake Kasumigaura, Japan

Presenter : NOJIRI Yukihiro, TAKAMURA Noriko
Title : , Arch.Hydrobiol., 124(2):129‐148 (1992)
Resultats preliminaires des plongees du Shinkai 6500 sur la dorsale du Bassin Nord-Fidjien (SW Pacifique) -Programme STARMER

Presenter : NOJIRI Yukihiro
Title : , C/R.Acad.Sci.Paris, 314II:491‐498 (1992)
Mantle helium flux from the bottom of Lake Mashu, Japan

Presenter : NOJIRI Yukihiro, Kawai T.
Title : , Earth Planet.Sci.Lett., 108:11‐18 (1992)
Real-time monitoring of iodine in process off-gas by inductively coupled plasma-atomic emission spectroscopy

Presenter : , NOJIRI Yukihiro
Title : , Anal.Chem., 62(4):414‐416 (1990)
Active spreading and hydrothermalism in North Fiji Basin (SW Pacific). Results of Japaense French cruise Kaiyo 87

Presenter : NOJIRI Yukihiro
Title : , Mar.Geophys.Res., 12:269‐283 (1990)
Geochemical difference of basalts between polygenetic and monogenetic volcanoes in the central part of the Cameroon volcanic line

Presenter : NOJIRI Yukihiro
Title : , Geochem.J., 24:357‐370 (1990)
Helium and carbon fluxes in Lake Nyos, Cameroon : constraint on next gas burst

Presenter : NOJIRI Yukihiro
Title : , Earth Planet.Sci.Lett., 99:303‐314 (1990)
Gas discharge at Lake Nyos

Presenter : NOJIRI Yukihiro
Title : , Nature, 346:322‐323 (1990)
Hydrothermal plumes along the North Fiji Basin spreading axis

Presenter : NOJIRI Yukihiro, Kawai T.
Title : , Nature, 342:667‐670 (1989)
Geochemical evidence for hydrothermal activity in the Okinawa trough

Presenter : NOJIRI Yukihiro
Title : , Geochem.J., 22:107‐114 (1988)
L'accretion recente dans le bassin Nord-Fidjien: premiers resultats de la campagne franco-japonaise Kaiyo 87

Presenter : NOJIRI Yukihiro
Title : , C.R.Acad.Sci.Paris,Ser.II, 306:971‐978 (1988)
Determination of sub-nanogram-per-liter levels of mercury in lake water with atmospheric pressure helium microwave induced plasma emission spectrometry

Presenter : NOJIRI Yukihiro
Title : , Anal.Chem., 58:544‐547 (1986)
Spatial profile measurement of electron number densities and analyte line intensities in an inductively coupled plasma

Presenter : NOJIRI Yukihiro
Title : , Spectrochim.Acta, 40B:423‐434 (1985)
Zirconium coprecipitation for simultaneous multielement determination of trace metals in seawater by inductively coupled plasma atomic emission spectrometry

Presenter : NOJIRI Yukihiro
Title : , Appl.Spectrosc., 39:662‐667 (1985)
Simultaneous multielement determination of trace metals in lake waters by ICP emission spectrometry with preconcentration and their background levels in Japan

Presenter : NOJIRI Yukihiro, Kawai T.
Title : , Water Res., 19:503‐509 (1985)
Spectral interferences and correction methods for inductively coupled plasma emission spectrometry

Presenter : NOJIRI Yukihiro
Title : , Fenxi Huaxue, 12:961‐964 (1984)
Inorganic content in rice phloem sap

Presenter : NOJIRI Yukihiro
Title : , Soil Sci.Plant.Nutr., 29:185‐192 (1983)
Comparison of Spatial distributions of argon species number densities with calcium atom and ion in an inductively coupled argon plasma

Presenter : , NOJIRI Yukihiro
Title : , Spectrochim.Acta, 38B(1/2):61‐74 (1983)
Simultaneous multielement determination of major, minor, and trace elements in soil and rock samples by inductively coupled plasma emission spectrometry

Presenter : NOJIRI Yukihiro
Title : , Bull.Chem.Soc.Jpn., 56:1074‐ 1079 (1983)
Spatial distributions of metastable argon, temperature and electron number density in an inductively coupled argon plasma

Presenter : , NOJIRI Yukihiro
Title : , Spectrochim.Acta, 36B(7):711‐718 (1982)

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Six years of atmospheric CO2 observations at Mt. Fuji recorded with a battery-powered measurement system

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Nojiri Y.
Title : , Atmospheric Measurement Techniques, 10:667-680 (2017)
Intraspecific variations in responses to ocean acidification in two branching coral species

Presenter : Sekizawa A., Uechi H., Iguchi A., Nakamura T., Kumagai N., Suzuki A., Sakai K., Nojiri Y.
Title : , Marine Pollution Bulletin, 122:282-287 (2017)
Emission factors of CO2, CO and CH4 from Sumatran peatland fires in 2013 based on shipboard measurements

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Title : , Tellus, 69(1): (2017)
Long-term variability of surface nutrient concentrations in the North Pacific

Presenter : Yasunaka S., Ono T., Nojiri Y., Whitney F.A., Wada C., Murata A., Nakaoka S., Hosoda S.
Title : , Geophysical Research Letters, 43:3389-3397 (2016)
A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT)

Presenter : Dorothee C. E. Bakker, Benjamin Pfeil, Camilla S. Landa, Nicolas Metzl, Kevin M. O’Brien, Are Olsen, Karl Smith, Cathy Cosca, Harasawa S., Stephen D. Jones, Nakaoka S., Nojiri Y., Ute Schuster, Tobias Steinhoff, Colm Sweeney, Taro Takahashi, Bronte Tilbrook, Wada C., et al.
Title : , Earth System Science Data, 8:383-413 (2016)
Surface ocean CO2 in 1990-2011 modelled using a feed-forward neural network

Presenter : Zeng J., Nojiri Y., Nakaoka S., Nakajima H., Shirai T.
Title : , Geoscience Data Journal, 2:47-51 (2015)
Reconstructing the Carbon Dioxide Absorption Patterns of World Oceans Using a Feed-Forward Neural Network: Software Implementation and Employment Techniques

Presenter : Zeng J., Nakajima H., Nojiri Y., Nakaoka S.
Title : , Environmental Software Systems, 11th IFIP WG 5.11 International Symposium, ISESS 2015, 417-425 (2015)
ENSO-related variability in latitudinal distribution of annual mean atmospheric potential oxygen (APO) in the equatorial Western Pacific

Presenter : Tohjima Y., Terao Y., Mukai H., Machida T., Nojiri Y., Maksyutov S.
Title : , Tellus-B, 67: (2015)
North Pacific dissolved inorganic carbon variations related to the Pacific Decadal Oscillation

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Title : , Geophysical Research Letters, 41:1005-1011 (2014)
Negative effects of ocean acidification on two crustose coralline species using genetically homogeneous samples

Presenter : Kato A., Hikami M., Kumagai N., Suzuki A., Nojiri Y., Sakai K.
Title : , Marine Environmental Research, 94:1-6 (2014)
A Global Surface Ocean fCO2 Climatology Based on a Feed-Forward Neural Network

Presenter : Zeng J., Nojiri Y., Landschützer P., Telszewski M., Nakaoka S.
Title : , Journal of Atmospheric and Oceanic Technology , 31(8):1838-1849 (2014)
Emissions of methane from offshore oil and gas platforms in Southeast Asia

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Title : , Scientific Reports, 4(6503): (2014)
Mapping of sea surface nutrients in the North Pacific: Basin-wide distribution and seasonal to interannual variability

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Whitney A. F., Telszewski M.
Title : , Journal of Geophysical Research: Oceans, 119:7756-7771 (2014)
Monthly maps of Sea Surface Dissolved Inorganic Carbon in the North Pacific: Basin-wide Distribution and Seasonal Variation

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Title : , Journal of Geophysical Research, 118(8):3737-3977 (2013)
Estimating temporal and spatial variation of ocean surface pCO2 in the North Pacific using a self-organizing map neural network technique

Presenter : Nakaoka S., Telszewski M, Nojiri Y., Yasunaka S., Miyazaki C., Mukai H., Usui N.
Title : , Biogeosciences, 10:6093-6106 (2013)
Detection of Radioactive 35S at Fukushima and other Japanese sites

Presenter : Priyadarshi A., Falkenthal J., Thiemens M., Yoshida N., Toyoda S., Yamada K., Mukotaka A., Fujii A., Uematsu M., Hatakeyama S., Noguchi I., Nojiri Y., Tanimoto H.
Title : , Journal of Geophysical Research: Atmospheres, 118(2):1020-1027 (2013)
Climate impacts on the structures of the North Pacific air-sea CO2 flux variability

Presenter : Valsala V., Maksyutov S., Telszewski M., Nakaoka S., Nojiri Y., Ikeda M., Murtugudde R.
Title : , Biogeosciences, 9(1):477-492 (2012)
Observation of atmospheric oxygen/nitrogen ratio aboard a cargo ship using gas chromatography/thermal conductivity detector

Presenter : Yamagishi H., Tohjima Y., Mukai H., Nojiri Y., Miyazaki C., Katsumata K.
Title : , Journal of Geophysical Research - Atmospheres, 117:D04309 (2012)
Long-term variation of atmospheric methyl iodide and its link to global environmental change

Presenter : Yokouchi Y., Nojiri Y., Toom-Sauntry D., Fraser P., Inuzuka Y., Tanimoto H., Nara H., Murakami R., Mukai H.
Title : , Geophysical Research Letters, 39:L23805 (2012)
Effect of air composition (N2, O2, Ar, and H2O) on CO2 and CH4 measurement by wavelength-scanned cavity ring-down spectroscopy: calibration and measurement strategy

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Katsumata K., Rella C. W.
Title : , Atmospheric Measurement Techniques, 5:2689-2701 (2012)
Analysis of seasonality and annual mean distribution of atmospheric potential oxygen (APO) in the Pacific region

Presenter : Tohjima Y., Minejima C., Mukai H., Machida T., Yamagishi H., Nojiri Y.
Title : , Global Biogeochem Cycles, 26:GB4008 (2012)
CO emissions from biomass burning in South-east Asia in the 2006 El nino year: shipboard and AIRS satellite observations

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Zeng J., Tohjima Y., Machida T.
Title : , Environmental Chemistry, 8(2):213-223 (2011)
Onboard measurement system of atmospheric carbon monoxide in the Pacific by voluntary observing ships

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Machida T., Tohjima Y.
Title : , Atmospheric Measurement Techniques, 4(11):2495-2507 (2011)
Interannual variability and trends in atmospheric methane over the western Pacific from 1994 to 2010

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Title : , Journal of Geophysical Research, 116:D14303 (2011)
Preliminary results of radiocarbon monitoring in the surface waters of the North Pacific

Presenter : Aramaki T., Nojiri Y., Mukai H., Kushibashi S., Uchida M., Shibata Y.
Title : , Nucl.Instrum.Methods Phys.Res.,B, 268(7/8):1222-1225 (2010)
Dynamics and elemental stoichiometry of carbon, nitrogen, and phosphorus in particulate and dissolved organic pools during a phytoplankton bloom induced by in situ iron enrichment in the western subarctic Pacific(SEEDS-II)

Presenter : Yoshimura T., Ogawa H., Imai K., Aramaki T., Nojiri Y., Nishioka J., Tsuda A.
Title : , Deep-Sea Res.II, 56(26):2863-2874 (2009)
Behavior of particulate materials during iron fertilization experiments in the Western Subarctic Pacific(SEEDS and SEEDS II)

Presenter : Aramaki T., Nojiri Y., Imai K.
Title : , Deep-Sea Res.II, 56(26):2875-2888 (2009)
Physical behaviors of the iron-fertilized patch in SEEDS II

Presenter : Tsumune D., Nishioka J., Shimamoto A., Watanabe Y.W., Aramaki T., Nojiri Y., Takeda S., Tsuda A., Tsubono T.
Title : , Deep-Sea Res.II, 56(26):2948-2957 (2009)
Primary productivity, bacterial productivity and nitrogen uptake in response to iron enrichment during the SEEDS II

Presenter : Kudo I., Noiri Y., Cochlan W.P., Suzuki K., Aramaki T., Ono T., Nojiri Y.
Title : , Deep-Sea Res.II, 56(26):2755-2766 (2009)
Biogeochemical cycling of N and Si during the mesoscale iron-enrichment experiment in the western subarctic Pacific(SEEDS-II)

Presenter : Saito H., Tsuda A., Nojiri Y., Aramaki T., Ogawa H., Yoshimura T., Imai K., Kudo I., Nishioka J., Ono T., Suzuki K.
Title : , Deep-Sea Res.II, 56(26):2852-2862 (2009)
Atmospheric O2/N2 measurements at two Japanese sites: estimation of global oceanic and land biotic carbon sinks and analysis of the variations in atmospheric potential oxygen(APO)

Presenter : Tohjima Y., Mukai H., Nojiri Y., Yamagishi H., Machida T.
Title : , Tellus B, 60(2):213-225 (2008)
Global distribution and seasonal concentration change of methyl iodide in the atmosphere

Presenter : Yokouchi Y., Osada K., Wada M., Hasebe F., Agama M., Murakami R., Mukai H., Nojiri Y., Inuzuka Y., Toom-Sauntry D., Fraser P.
Title : , J.Geophys.Res., 113:D18311 (2008)
A comparison of ΔρCO2 distributions in the northern North Pacific using results from a commercial vessel in 1995-1999

Presenter : Zeng J., Nojiri Y., Murphy, Wong, Fujinuma Y.
Title : , Deep-Sea Res.II, 40(24/25):5303-5315 (2002)

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A Global Environmental Database Project at the National Institute for Environmental Studies and its Contribution to DIAS/GRENE

Presenter : Nakajima H., Shirai T., Saigusa N., Nojiri Y., Machida T., Mukai H.
Title : , International Forum on Polar Data Activities in Global Data Systems, 84-86 (2013)

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Research Result (Presentation)

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Research Presentation
Research Lecture

Research Presentation
An 8-year record of atmospheric trace gases and aerosols in Southeast Asia based on shipboard observation

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Name of Society : 15th Internaltional Global Atmospheric Chemistry 2018 (2018)
Name of Proceedings : -
Research Presentation
Quantification of the ocean carbon sink using surface ocean observations

Presenter : Bakker D.C.E., Olsen A., Sabine C., Pfeil B., Alin S., Cosca C., Currie K., Feely R., Jones S., Kozyr A., Landa C., Landschutzer P., Lefevre N., Metzl N., Nakaoka S., Nojiri Y., O-Brien K.M., Denis P., Rodenbeck C., Schuster U., Karl S., Takahashi T., Telszewski M., Tilbrook B., Wanninkhof R.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 281
Research Presentation
Long-term monitoring of atmospheric greenhouse gases and data validation in NIES-VOS program

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Machida T., Nakaoka S., Tohjima Y., Katsumata K.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques(GGMT-2017) (2017)
Name of Proceedings : Abstracts
Research Presentation
Emissions of CO2, CO, and CH4 from peat forest fires on Sumatra Island in non El-Nino year 2013

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Name of Society : International Global Atmospheric Chemistry (IGAC) Project 2016 Science Conference (2016)
Name of Proceedings : Abstracts
Research Presentation
Multi-model comparison of marine boundary layer O3 in HTAP2 simulations with cargo ship observations in Asia-Pacific

Presenter : Ikeda K., Tanimoto H., Nagashima T., Nara H., Mukai H., Nojiri Y., Tohjima Y., Davila Y., Dong X., Emmons L.K., Flemming J., Fu J., Ghude S., Henze D.K., Jonson J.E., Lund M.T., Park R., Pierce R.B., Sudo K.
Name of Society : 14th IGAC Science Conference (2016)
Name of Proceedings : Abstracts
Research Presentation
Ocean surface pCO2 and Dissolved Inorganic Carbon distributions in the Pacific Ocean from 1998 to 2009

Presenter : Nakaoka S., Yasunaka S., Nojiri Y., Zeng J., Ono T., Takatani Y., Kojima A., Nakano T., Telszewski M.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Society (2015)
Name of Proceedings : Abstracts, 118
Research Presentation
Seasonal and interannual variation of pCO2 in Japan coastal waters

Presenter : Ono T., Kuwata A., Tadokoro K, Ichikawa T., Nojiri Y., Nakaoka S.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Society (2015)
Name of Proceedings : Abstract, 119
Research Presentation
Basin-scale Distribution and Seasonal to Inter-annual Variation of Dissolved Inorganic Carbon over the North Pacific

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Union (2015)
Name of Proceedings : Abstracts, 119
Research Lecture
Climate change influence on coral growth tested by culture experiments of subtropical Acropora species

Presenter : Suzuki A., Mori C., Isono R., Watanabe Y., Hayashi M., Yamamoto Y., Yamano H., Nomura K., Inoue M., Nishida K., Kawahata H., Nojiri Y.
Name of Society : Japan-Australia Marine Science Workshop (2013)
Name of Proceedings : -
Research Presentation
Shipboard monitoring system of atmospheric CH4 in Southeast Asia and Oceania regions

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Tohjima Y., Machida T.
Name of Society : 17th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2013) (2013)
Name of Proceedings : -
Research Presentation
Global monitoring of greenhouse gases using various earth observation platforms

Presenter : Mukai H., Nojiri Y., Machida T., Saigusa N.
Name of Society : Japan Geoscience Union Meeting 2013 (2013)
Name of Proceedings : -
Research Presentation
Long-term monitoring of long-lived greenhouse gases(GHGs) and short-lived climate pollutants in Asia and Oceania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Kondo F., Mukai H., Nojiri Y., Tohjima Y., Machida T., Hashimoto S.
Name of Society : NOAA Earth System Research Laboratory 41st Global Monitoring Annual Conference (2013)
Name of Proceedings : Abstracts, 7
Research Presentation
Observation of atmospheric oxygen/nitrogen ratio on board a cargo ship by using gas chromatography/thermal conductivity detector

Presenter : Yamagishi H., Tohjima Y., Mukai H., Nojiri Y., Miyazaki C., Katsumata K.
Name of Society : 2012 Ocean Sciences Meeting (2012)
Name of Proceedings : Abstracts of 2012 Ocean Sciences Meeting, 60
Research Presentation
Trends, interannual variability, and seasonal cycle of atmospheric methane over the western Pacific observed using voluntary observing ships

Presenter : Terao Y., Kim H. , Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : AGU Fall Meeting 2012 (2012)
Name of Proceedings : Abstracts
Research Presentation
National Institute for Environmental Studies (NIES) Monitoring of Atmospheric Halocarbons

Presenter : Yokouchi Y., Saito T., Nojiri Y., Nara F., Tanimoto H., Mukai H.
Name of Society : Global Monitoring Annual Conference 2011 (2011)
Name of Proceedings : Abstracts of Global Monitoring Annual Conference 2011, 7
Research Presentation
Long-term monitoring of atmospheric trace gases and aerosols in Asia and Oceania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Yokouchi Y., Hashimoto S.
Name of Society : European Geosciences Union General Assembly 2011 (2011)
Name of Proceedings : Geophysical Research Abstracts, 13:9724
Research Presentation
Shipboard monitoring of non-CO2 greenhouse gases in Asia and Oceania using commercially cargo vessels

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Hashimoto S.
Name of Society : AGU Fall Meeting 2011 (2011)
Name of Proceedings : Abstracts of AGU Fall Meeting 2011
Research Presentation
Trends, interannual variability, and seasonal cycle of atmospheric methane over the western Pacific since 1994

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) (2011)
Name of Proceedings : Abstracts of Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6)
Research Presentation
Long-term monitoring of non-CO2 greenhouse gases and aerosols in Asia and Oseania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Yokouchi Y., Hashimoto S.
Name of Society : Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) Science, Policy and Integration (2011)
Name of Proceedings : Abstracts of Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) Science, Policy and Integration, 12
Research Presentation
NIES atmospheric radiocarbon (14CO2) measurements

Presenter : Terao Y., Mukai H., Kitagawa H., Nojiri Y., Uchida M., Shibata Y., Aramaki T.
Name of Society : The 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2011) (2011)
Name of Proceedings : Abstracts of The 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2011)
Research Presentation
Pressure broadening effects of inert gases on CO2 and CH4 measurement using a wave scan-cavity ring down spectrometer

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Katsumata K., Tohjima Y., Machida T.
Name of Society : 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2011)
Name of Proceedings : Abstracts of 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques
Research Presentation
Seasonal cycle and interannual variability of atmospheric radiocarbon((14)CO2) over the western Pacific

Presenter : Terao Y., Kitagawa H., Mukai H., Nojiri Y., Uchida M., Shibata Y., Aramaki T., Maksyutov S., Valsala V.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Abstracts, T1-011
Research Presentation
Development of CO2 measurement system in remote areas under harsh observation environment -a case of Mt.Fuji

Presenter : Sunaga A., Nojiri Y., Mukai H.
Name of Society : 15th WMO/IAEA Meet.Experts Carbon Dioxide,Other Greenhouse Gases,Related Tracer Meas.Tech. (2009)
Name of Proceedings : Abstracts
Research Presentation
Regional characteristics on greenhouse gaseous concentrations in some Asia/Pacific sites

Presenter : Mukai H., Zeng Y., Naja M., Machida T., Nojiri Y., Terao Y., Tanimoto H., Nara H., Tohjima Y., Hashimoto S., Sunaga A., Koyama Y., Maksyutov S.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Abstracts
Research Presentation
Estimation of global oceanic and land biotic carbon sinks based on the atmospheric O2/N2 measurements from the NIES flask-sampling network

Presenter : Tohjima Y., Mukai H., Machida T., Yamagishi H., Nojiri Y.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Proceedings
Research Presentation
Development of CO2 measurement system in a remote area under harsh observation environment -a case of Mt. Fuji-

Presenter : Sunaga A., Nojiri Y., Mukai H.
Name of Society : Jpn.Geosci.Union Meet.2009 (2009)
Name of Proceedings : Abstracts
Research Presentation
The composition of NIES underway measurement data and its QA/QC

Presenter : Miyazaki C., Nakaoka S., Nojiri Y.
Name of Society : SOCAT Pac.Reg.Workshop (2009)
Name of Proceedings : IOC Workshop Report, (221):5
Research Presentation
Interannual variability and trends of atmospheric methane over the western Pacific

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : AGU Fall Meeting 2009 (2009)
Name of Proceedings : Abstracts, 90(52):A53C-0282
Research Presentation
NIES ocean pCO2 measurement of VOS over the western Pacific

Presenter : Miyazaki C., Nakaoka S., Nojiri Y.
Name of Society : PICES 2009 Annu.Meet. (2009)
Name of Proceedings : Abstracts, 302
Research Lecture
Activities and future plans of Japanese Alliance for Climate Change Observation

Presenter : Miyazaki S., Fujita N., Shinmyo Y., Fujitani T., Nojiri Y.
Name of Society : 2nd Int.Symp.21st Century COE Program (2008)
Name of Proceedings : Abstracts, 133
Research Presentation
Preliminary result of radiocarbon monitoring in surface water in the North Pacific

Presenter : Aramaki T., Nojiri Y., Mukai H., Uchida M., Shibata Y.
Name of Society : 11th Int.Conf.Accel.Mass Spectrom. (2008)
Name of Proceedings : Abstracts, 136
Research Lecture
Global monitoring of greenhouse gasses

Presenter : Nojiri Y., Miyazaki S., Matsunaga T.
Name of Society : Exhib.4th GEO Plenary Minist.Summit (2007)
Name of Proceedings : -
Research Presentation
Latitudinal and seasonal variation of methyl iodide in the atmosphere

Presenter : Yokouchi Y., Osada K.(*1), Wada M.(*2), Hasebe F.(*3), Agama M.(*4), Mukai H., Nojiri Y., Inuzuka Y., Fraser Y.(*5), Toom-Sauntry D.(*6)
Name of Society : Solas Open Sci.Conf. (2007)
Name of Proceedings : Abstracts(CD-ROM)
Research Presentation
Interannual variability and trends of atmospheric radiocarbon (14CO2) over the tropical western Pacific

Presenter : Terao Y., Kitagawa H.(*1), Mukai H., Nojiri Y., Uchida M., Shibata Y., Aramaki T.
Name of Society : AGU Fall Meeting 2007 (2007)
Name of Proceedings : Abstracts(CD-ROM)
Research Presentation
Long-term observation of CO2 concentration and its isotope ratio over the Western Pacific

Presenter : Mukai H., Nojiri Y., Tohjima T., Machida T., Shibata H., Kitagawa H.(*1)
Name of Society : 7th Int.CO2 Conf./7th Int.Carbon Dioxide Conf.(ICDC7) (2005)
Name of Proceedings : Proceedings(Web)
Research Presentation
In situ atmospheric O2/N2 measurements by GC system in Cape Ochi-ishi

Presenter : Yamagishi H.(*1), Tohjima Y., Mukai M., Tanimoto H., Nojiri Y., Zeng J.(*3), Shimano F.(*3)
Name of Society : 2nd Int.Summer Sch.Surf.Ocean-Lower Atmos.Study(SOLAS)(Poster Session) (2005)
Name of Proceedings : -
Research Presentation
Changes in the atmospheric oxygen/nitrogen ratio determined from the NIES flask-sampling network

Presenter : Tohjima Y., Mukai H., Nojiri Y., Machida T., Yamagishi H.
Name of Society : 7th Int.CO2 Conf./7th Int.Carbon Dioxide Conf.(ICDC7)(Poster Sesstion） (2005)
Name of Proceedings : -
Research Presentation
The budget of atmospheric methyl chloride using stable carbon isotopic mass-balance approach

Presenter : Komatsu D.D.(*1), Tsunogai U.(*1), Yamaguchi J.(*1), Nakagawa F.(*1), Yokouchi Y., Nojiri Y.
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
Research Presentation
Latitudinal and seasonal variation in the atmospheric CO2 and O2: Results from shipboard sampling in the West and North Pacific Ocean

Presenter : Tohjima Y., Mukai H., Nojiri Y., Machida T., Gloor M.(*1)
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
Research Presentation
Measurements of atmospheric O2/N2 ratio from two monitoring stations in Japan and shipboard sampling in the western and northern Pacific region

Presenter : Tohjima Y., Mukai H., Machida T., Nojiri Y.
Name of Society : 13th Annu.V.M.Goldschmidt Conf. (2003)
Name of Proceedings : Geochimica et Cosmochimica Acta (Special Supplement), 67(18(S1))(18(S1)):A483
Monitering of stratospheric ozone and related tropospheric trace gases in CGER/NIES-observation and data dissemination

Presenter : Katsumoto M., Nagahama T., Sugimoto N., Matsui I., Fujinuma Y., Mukai H., Tohjima Y., Machida T., Nojiri Y., Nakane H.
Name of Society : Network Detect.Stratos.Change 2001 Symp. (2001)
Name of Proceedings : Abstracts
Variability of atmospheric CO2 over the northern North Pacific: results of a ship of opportunity in 1995-1999

Presenter : Nojiri Y., Mukai H., Machida T., Katsumoto M., Fujinuma Y.
Name of Society : 6th Int.Carbon Dioxide Conf. (2001)
Name of Proceedings : Abstracts
Estimation of recent CO2 sink variation base on carbon and oxygen isotope ratios of CO2 collected over the Pacific

Presenter : Mukai H., Nojiri Y., Machida T., Fujinuma Y.
Name of Society : 6th Int.Carbon Dioxide Conf. (2001)
Name of Proceedings : Abstracts
Measurements of the atmospheric O2/N2 ratio at Hateruma Island and Cape Ochi-ishi,Japan

Presenter : Tohjima Y., Machida T., Mukai H., Nojiri Y., Fujinuma Y.
Name of Society : 6th Int.Carbon Dioxide Conf. (2001)
Name of Proceedings : Abstracts
Characterization of atmosheric CO2 observed at two-background air monitoring stations(Hateruma and Ochi-ishi) in Japan

Presenter : Mukai H., Katsumoto M., Ide R., Machida T., Fujinuma Y., Nojiri Y.
Name of Society : 6th Int.Carbon Dioxide Conf. (2001)
Name of Proceedings : Abstracts
Baseline monitoring of Greenhouse Gases at two remote site station in Japan-Hateruma and Cape Ochi-ishi

Presenter : Fujinuma Y., Katsumoto M.(*1), Mukai H., Tohjima Y., Machida T., Nojiri Y., Inoue G.
Name of Society : 6th Int.Carbon Dioxide Conf. (2001)
Name of Proceedings : Abstracts

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Quantification of the ocean carbon sink using surface ocean observations

Presenter : Bakker D.C.E., Olsen A., Sabine C., Pfeil B., Alin S., Cosca C., Currie K., Feely R., Jones S., Kozyr A., Landa C., Landschutzer P., Lefevre N., Metzl N., Nakaoka S., Nojiri Y., O-Brien K.M., Denis P., Rodenbeck C., Schuster U., Karl S., Takahashi T., Telszewski M., Tilbrook B., Wanninkhof R.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 281
Ocean surface pCO2 and Dissolved Inorganic Carbon distributions in the Pacific Ocean from 1998 to 2009

Presenter : Nakaoka S., Yasunaka S., Nojiri Y., Zeng J., Ono T., Takatani Y., Kojima A., Nakano T., Telszewski M.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Society (2015)
Name of Proceedings : Abstracts, 118
Seasonal and interannual variation of pCO2 in Japan coastal waters

Presenter : Ono T., Kuwata A., Tadokoro K, Ichikawa T., Nojiri Y., Nakaoka S.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Society (2015)
Name of Proceedings : Abstract, 119
Basin-scale Distribution and Seasonal to Inter-annual Variation of Dissolved Inorganic Carbon over the North Pacific

Presenter : Yasunaka S., Nojiri Y., Nakaoka S., Ono T., Mukai H., Usui N.
Name of Society : 12th Annual Meeting Asia Oceania Geosciences Union (2015)
Name of Proceedings : Abstracts, 119
Global monitoring of greenhouse gases using various earth observation platforms

Presenter : Mukai H., Nojiri Y., Machida T., Saigusa N.
Name of Society : Japan Geoscience Union Meeting 2013 (2013)
Name of Proceedings : -
Long-term monitoring of long-lived greenhouse gases(GHGs) and short-lived climate pollutants in Asia and Oceania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Kondo F., Mukai H., Nojiri Y., Tohjima Y., Machida T., Hashimoto S.
Name of Society : NOAA Earth System Research Laboratory 41st Global Monitoring Annual Conference (2013)
Name of Proceedings : Abstracts, 7
National Institute for Environmental Studies (NIES) Monitoring of Atmospheric Halocarbons

Presenter : Yokouchi Y., Saito T., Nojiri Y., Nara F., Tanimoto H., Mukai H.
Name of Society : Global Monitoring Annual Conference 2011 (2011)
Name of Proceedings : Abstracts of Global Monitoring Annual Conference 2011, 7
Long-term monitoring of atmospheric trace gases and aerosols in Asia and Oceania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Yokouchi Y., Hashimoto S.
Name of Society : European Geosciences Union General Assembly 2011 (2011)
Name of Proceedings : Geophysical Research Abstracts, 13:9724
Long-term monitoring of non-CO2 greenhouse gases and aerosols in Asia and Oseania using voluntary observing ships

Presenter : Tanimoto H., Nara H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Yokouchi Y., Hashimoto S.
Name of Society : Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) Science, Policy and Integration (2011)
Name of Proceedings : Abstracts of Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) Science, Policy and Integration, 12
NIES atmospheric radiocarbon (14CO2) measurements

Presenter : Terao Y., Mukai H., Kitagawa H., Nojiri Y., Uchida M., Shibata Y., Aramaki T.
Name of Society : The 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2011) (2011)
Name of Proceedings : Abstracts of The 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2011)
Regional characteristics on greenhouse gaseous concentrations in some Asia/Pacific sites

Presenter : Mukai H., Zeng Y., Naja M., Machida T., Nojiri Y., Terao Y., Tanimoto H., Nara H., Tohjima Y., Hashimoto S., Sunaga A., Koyama Y., Maksyutov S.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Abstracts
The composition of NIES underway measurement data and its QA/QC

Presenter : Miyazaki C., Nakaoka S., Nojiri Y.
Name of Society : SOCAT Pac.Reg.Workshop (2009)
Name of Proceedings : IOC Workshop Report, (221):5
Latitudinal and seasonal variation of methyl iodide in the atmosphere

Presenter : Yokouchi Y., Osada K.(*1), Wada M.(*2), Hasebe F.(*3), Agama M.(*4), Mukai H., Nojiri Y., Inuzuka Y., Fraser Y.(*5), Toom-Sauntry D.(*6)
Name of Society : Solas Open Sci.Conf. (2007)
Name of Proceedings : Abstracts(CD-ROM)
Interannual variability and trends of atmospheric radiocarbon (14CO2) over the tropical western Pacific

Presenter : Terao Y., Kitagawa H.(*1), Mukai H., Nojiri Y., Uchida M., Shibata Y., Aramaki T.
Name of Society : AGU Fall Meeting 2007 (2007)
Name of Proceedings : Abstracts(CD-ROM)
Long-term observation of CO2 concentration and its isotope ratio over the Western Pacific

Presenter : Mukai H., Nojiri Y., Tohjima T., Machida T., Shibata H., Kitagawa H.(*1)
Name of Society : 7th Int.CO2 Conf./7th Int.Carbon Dioxide Conf.(ICDC7) (2005)
Name of Proceedings : Proceedings(Web)
In situ atmospheric O2/N2 measurements by GC system in Cape Ochi-ishi

Presenter : Yamagishi H.(*1), Tohjima Y., Mukai M., Tanimoto H., Nojiri Y., Zeng J.(*3), Shimano F.(*3)
Name of Society : 2nd Int.Summer Sch.Surf.Ocean-Lower Atmos.Study(SOLAS)(Poster Session) (2005)
Name of Proceedings : -
Changes in the atmospheric oxygen/nitrogen ratio determined from the NIES flask-sampling network

Presenter : Tohjima Y., Mukai H., Nojiri Y., Machida T., Yamagishi H.
Name of Society : 7th Int.CO2 Conf./7th Int.Carbon Dioxide Conf.(ICDC7)(Poster Sesstion） (2005)
Name of Proceedings : -
The budget of atmospheric methyl chloride using stable carbon isotopic mass-balance approach

Presenter : Komatsu D.D.(*1), Tsunogai U.(*1), Yamaguchi J.(*1), Nakagawa F.(*1), Yokouchi Y., Nojiri Y.
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
Latitudinal and seasonal variation in the atmospheric CO2 and O2: Results from shipboard sampling in the West and North Pacific Ocean

Presenter : Tohjima Y., Mukai H., Nojiri Y., Machida T., Gloor M.(*1)
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
Measurements of atmospheric O2/N2 ratio from two monitoring stations in Japan and shipboard sampling in the western and northern Pacific region

Presenter : Tohjima Y., Mukai H., Machida T., Nojiri Y.
Name of Society : 13th Annu.V.M.Goldschmidt Conf. (2003)
Name of Proceedings : Geochimica et Cosmochimica Acta (Special Supplement), 67(18(S1))(18(S1)):A483
An 8-year record of atmospheric trace gases and aerosols in Southeast Asia based on shipboard observation

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Name of Society : 15th Internaltional Global Atmospheric Chemistry 2018 (2018)
Name of Proceedings : -
Long-term monitoring of atmospheric greenhouse gases and data validation in NIES-VOS program

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Machida T., Nakaoka S., Tohjima Y., Katsumata K.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques(GGMT-2017) (2017)
Name of Proceedings : Abstracts
Emissions of CO2, CO, and CH4 from peat forest fires on Sumatra Island in non El-Nino year 2013

Presenter : Nara H., Tanimoto H., Tohjima Y., Mukai H., Nojiri Y., Machida T.
Name of Society : International Global Atmospheric Chemistry (IGAC) Project 2016 Science Conference (2016)
Name of Proceedings : Abstracts
Multi-model comparison of marine boundary layer O3 in HTAP2 simulations with cargo ship observations in Asia-Pacific

Presenter : Ikeda K., Tanimoto H., Nagashima T., Nara H., Mukai H., Nojiri Y., Tohjima Y., Davila Y., Dong X., Emmons L.K., Flemming J., Fu J., Ghude S., Henze D.K., Jonson J.E., Lund M.T., Park R., Pierce R.B., Sudo K.
Name of Society : 14th IGAC Science Conference (2016)
Name of Proceedings : Abstracts
Shipboard monitoring system of atmospheric CH4 in Southeast Asia and Oceania regions

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Tohjima Y., Machida T.
Name of Society : 17th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2013) (2013)
Name of Proceedings : -
Observation of atmospheric oxygen/nitrogen ratio on board a cargo ship by using gas chromatography/thermal conductivity detector

Presenter : Yamagishi H., Tohjima Y., Mukai H., Nojiri Y., Miyazaki C., Katsumata K.
Name of Society : 2012 Ocean Sciences Meeting (2012)
Name of Proceedings : Abstracts of 2012 Ocean Sciences Meeting, 60
Trends, interannual variability, and seasonal cycle of atmospheric methane over the western Pacific observed using voluntary observing ships

Presenter : Terao Y., Kim H. , Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : AGU Fall Meeting 2012 (2012)
Name of Proceedings : Abstracts
Shipboard monitoring of non-CO2 greenhouse gases in Asia and Oceania using commercially cargo vessels

Presenter : Nara H., Tanimoto H., Mukai H., Nojiri Y., Tohjima Y., Machida T., Hashimoto S.
Name of Society : AGU Fall Meeting 2011 (2011)
Name of Proceedings : Abstracts of AGU Fall Meeting 2011
Trends, interannual variability, and seasonal cycle of atmospheric methane over the western Pacific since 1994

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6) (2011)
Name of Proceedings : Abstracts of Sixth International Symposium on Non-CO2 Greenhouse Gases (NCGG-6)
Pressure broadening effects of inert gases on CO2 and CH4 measurement using a wave scan-cavity ring down spectrometer

Presenter : Nara H., Tanimoto H., Nojiri Y., Mukai H., Katsumata K., Tohjima Y., Machida T.
Name of Society : 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2011)
Name of Proceedings : Abstracts of 16th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques
Seasonal cycle and interannual variability of atmospheric radiocarbon((14)CO2) over the western Pacific

Presenter : Terao Y., Kitagawa H., Mukai H., Nojiri Y., Uchida M., Shibata Y., Aramaki T., Maksyutov S., Valsala V.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Abstracts, T1-011
Development of CO2 measurement system in remote areas under harsh observation environment -a case of Mt.Fuji

Presenter : Sunaga A., Nojiri Y., Mukai H.
Name of Society : 15th WMO/IAEA Meet.Experts Carbon Dioxide,Other Greenhouse Gases,Related Tracer Meas.Tech. (2009)
Name of Proceedings : Abstracts
Estimation of global oceanic and land biotic carbon sinks based on the atmospheric O2/N2 measurements from the NIES flask-sampling network

Presenter : Tohjima Y., Mukai H., Machida T., Yamagishi H., Nojiri Y.
Name of Society : 8th Int.Carbon Dioxide Conf. (2009)
Name of Proceedings : Proceedings
Development of CO2 measurement system in a remote area under harsh observation environment -a case of Mt. Fuji-

Presenter : Sunaga A., Nojiri Y., Mukai H.
Name of Society : Jpn.Geosci.Union Meet.2009 (2009)
Name of Proceedings : Abstracts
Interannual variability and trends of atmospheric methane over the western Pacific

Presenter : Terao Y., Mukai H., Nojiri Y., Machida T., Tohjima Y., Saeki T., Maksyutov S.
Name of Society : AGU Fall Meeting 2009 (2009)
Name of Proceedings : Abstracts, 90(52):A53C-0282
NIES ocean pCO2 measurement of VOS over the western Pacific

Presenter : Miyazaki C., Nakaoka S., Nojiri Y.
Name of Society : PICES 2009 Annu.Meet. (2009)
Name of Proceedings : Abstracts, 302
Preliminary result of radiocarbon monitoring in surface water in the North Pacific

Presenter : Aramaki T., Nojiri Y., Mukai H., Uchida M., Shibata Y.
Name of Society : 11th Int.Conf.Accel.Mass Spectrom. (2008)
Name of Proceedings : Abstracts, 136

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Climate change influence on coral growth tested by culture experiments of subtropical Acropora species

Presenter : Suzuki A., Mori C., Isono R., Watanabe Y., Hayashi M., Yamamoto Y., Yamano H., Nomura K., Inoue M., Nishida K., Kawahata H., Nojiri Y.
Name of Society : Japan-Australia Marine Science Workshop (2013)
Name of Proceedings : -
Activities and future plans of Japanese Alliance for Climate Change Observation

Presenter : Miyazaki S., Fujita N., Shinmyo Y., Fujitani T., Nojiri Y.
Name of Society : 2nd Int.Symp.21st Century COE Program (2008)
Name of Proceedings : Abstracts, 133
Global monitoring of greenhouse gasses

Presenter : Nojiri Y., Miyazaki S., Matsunaga T.
Name of Society : Exhib.4th GEO Plenary Minist.Summit (2007)
Name of Proceedings : -

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NOJIRI Yukihiro

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