Latest Update：2025/06/26 15:07:18

NARA Hideki

Researcher Name: NARA Hideki

Div (Section) name/title: Earth System Division（Global Atmospheric Chemistry Section）／Senior Researcher

Professional Qualification(s): Chemistry,Science

Environmental Speciality Field: geochemistry,atmospheric chemistry

Research Subject

Fiscal Year: 2024
- 26799 : Climate Change and Air Quality Research Program
- 26815 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 26816 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26859 : Earth System Domain: Foresight and Advanced Basic Research
- 27033 : Development of in-situ measurement system of atmospheric carbonyl sulfide using a mid-infrared absorption spectrometer
- 27034 : Quality control for ozone measurement scale in Japan
- 27102 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2023
- 26400 : Climate Change and Air Quality Research Program
- 26409 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 26410 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26450 : Earth System Domain: Foresight and Advanced Basic Research
- 26520 : Development of in-situ measurement system of atmospheric carbonyl sulfide using a mid-infrared absorption spectrometer
- 26521 : Quality control for ozone measurement scale in Japan
- 26654 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2022
- 25964 : Climate Change and Air Quality Research Program
- 25965 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 25966 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 26006 : Earth System Domain: Foresight and Advanced Basic Research
- 26051 : Development of in-situ measurement system of atmospheric carbonyl sulfide using a mid-infrared absorption spectrometer
- 26092 : Long-term observations of the impacts of global warming on air quality and marine deposition in Asia and the Pacific
- 26264 : Atmospheric and Oceanic Monitoring
- 26295 : Quality control for ozone measurement scale in Japan
Fiscal Year: 2021
- 25498 : Climate Change and Air Quality Research Program
- 25506 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 25507 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 25655 : Earth System Domain: Foresight and Advanced Basic Research
- 25826 : Long-term observations of the impacts of global warming on air quality and marine deposition in Asia and the Pacific
- 25833 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2020
- 25113 : Long-term Monitoring and Database for Global Environmental Research and Supporting for Related Activities
- 25128 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
- 25182 : Long-term observations of the impacts of global warming on air quality and marine deposition in Asia and the Pacific
- 25185 : Development of a novel high-precision preparation method for standard gases of atmospheric carbonyl sulfide as a new tracer for carbon cycle studies
- 25327 : Studies on Advancing the Methods for Climate Change Impacts Assessment
- 25411 : Atmospheric and Oceanic Monitoring
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
- 24856 : Long-term observations of the impacts of global warming on air quality and marine deposition in Asia and the Pacific
- 24975 : Studies on Advancing the Methods for Climate Change Impacts Assessment
- 25077 : Development of a novel high-precision preparation method for standard gases of atmospheric carbonyl sulfide as a new tracer for carbon cycle studies
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
- 23066 : A study for the radiative forcing of black carbon
Fiscal Year: 2014
- 22667 : A study for the radiative forcing of black carbon
Fiscal Year: 2011
- 21284 : Study on characteristics of GHG in the atmosphere and outlook of their future concentration
- 21305 : Evaluation of multi-scale air pollution by integration of observation and model
- 21483 : Study on long term observation of trace greenhouse gases in the Asia-Oceania regions
Fiscal Year: 2010
- 20890 : Study on long term observation of trace greenhouse gases in the Asia-Oceania regions
- 21092 : Study on long-term variation mechanisms of greenhouse gas concentrations and their regional characteristics
Fiscal Year: 2009
- 20608 : Study on long-term variation mechanisms of greenhouse gas concentrations and their regional characteristics

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Research Result (Publication)

all
Original Paper
Other Publications

Original Paper
Long-term and interannual variations of atmospheric methane observed by the NIES and collaborative observation networks

Presenter : Umezawa T., Tohjima Y., Terao Y., Sasakawa M., Mueller A., Saeki T., Machida T., Nakaoka S., Nara H., Nomura S., Nishihashi M., Mukai H., Frey M., Morino I., Ohyama H., Yoshida Y., Zeng J., Noda H., Saito M., Matsunaga T., Sugita T., Tanimoto H., Niwa Y., Ito A., Yamashita Y., Shirai T., Ishizawa M., Ishijima K., Tsuboi K., Sawa Y., Matsueda H.
Title : , Progress in Earth and Planetary Science, 12(39): (2025)
Original Paper
A high-accuracy dynamic dilution method for generating reference gas mixtures of carbonyl sulfide at sub-nanomole-per-mole levels for long-term atmospheric observation

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Title : , Atmospheric Measurement Techniques, 17:5187-5200 (2024)
Original Paper
Estimation of fire-induced carbon emissions from Equatorial Asia in 2015 using in situ aircraft and ship observations

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
Title : , Atmospheric Chemistry and Physics, 21:9455-9473 (2021)
Original Paper
Estimation of CH4 emissions from the East Siberian Arctic Shelf based on atmospheric observations aboard the R/V Mirai during fall cruises from 2012 to 2017

Presenter : Tohjima Y., Zeng J., Shirai T., Niwa Y., Ishidoya S., Taketani F., Sasano D., Kosugi N., Kameyama S., Takashima H., Nara H., Morimoto S.
Title : , Polar Science (2020)
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
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
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)
Other Publications
Re-evaluation of NIES CO Scale using High Concentration Gravimetric CO Standard Gases

Presenter : Katsumata K., Machida T., Tanimoto H., Nara H., Mukai H.
Title : , GAW Report, (194):244-247 (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
Anomalous geographical gap in carbon monoxide mixing ratios over Hokkaido(Japan) in summer 2004

Presenter : Tanimoto H., Tohjima Y., Mukai H., Nara H., Hashimoto S.
Title : , Geochem.J., 43(5):e23-e29 (2009)

View all

Long-term and interannual variations of atmospheric methane observed by the NIES and collaborative observation networks

Presenter : Umezawa T., Tohjima Y., Terao Y., Sasakawa M., Mueller A., Saeki T., Machida T., Nakaoka S., Nara H., Nomura S., Nishihashi M., Mukai H., Frey M., Morino I., Ohyama H., Yoshida Y., Zeng J., Noda H., Saito M., Matsunaga T., Sugita T., Tanimoto H., Niwa Y., Ito A., Yamashita Y., Shirai T., Ishizawa M., Ishijima K., Tsuboi K., Sawa Y., Matsueda H.
Title : , Progress in Earth and Planetary Science, 12(39): (2025)
A high-accuracy dynamic dilution method for generating reference gas mixtures of carbonyl sulfide at sub-nanomole-per-mole levels for long-term atmospheric observation

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Title : , Atmospheric Measurement Techniques, 17:5187-5200 (2024)
Estimation of fire-induced carbon emissions from Equatorial Asia in 2015 using in situ aircraft and ship observations

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
Title : , Atmospheric Chemistry and Physics, 21:9455-9473 (2021)
Estimation of CH4 emissions from the East Siberian Arctic Shelf based on atmospheric observations aboard the R/V Mirai during fall cruises from 2012 to 2017

Presenter : Tohjima Y., Zeng J., Shirai T., Niwa Y., Ishidoya S., Taketani F., Sasano D., Kosugi N., Kameyama S., Takashima H., Nara H., Morimoto S.
Title : , Polar Science (2020)
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)
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)
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)
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)
Anomalous geographical gap in carbon monoxide mixing ratios over Hokkaido(Japan) in summer 2004

Presenter : Tanimoto H., Tohjima Y., Mukai H., Nara H., Hashimoto S.
Title : , Geochem.J., 43(5):e23-e29 (2009)

View all

Re-evaluation of NIES CO Scale using High Concentration Gravimetric CO Standard Gases

Presenter : Katsumata K., Machida T., Tanimoto H., Nara H., Mukai H.
Title : , GAW Report, (194):244-247 (2011)

View all

Research Result (Presentation)

all
Research Presentation

Research Presentation
Unveiling Multi-Scale Emissions and their sources in Japan: Results from First Continuous Cargo Ship observations of Greenhouse Gases and Air Pollutants

Presenter : Srivastava P., Tanimoto H., Mueller A., Zeng J., Nakaoka S., Niwa Y., Nara H.
Name of Society : iCACGP-IGAC 2024 (2024)
Name of Proceedings : -
Research Presentation
New tools for greenhouse gas monitoring and satellite validation over oceans: Utilizing commercial ship and aircraft observations and a novel semi-automatic FTIR - VIS spectrometer

Presenter : Mueller A., Tanimoto H., Sugita T., Patra P.K., Frey M., Kleinschek R., Butz A., Morino I., Enders V., Voss K., Nakaoka S., Machida T., Nara H.
Name of Society : iCACGP-IGAC 2024 (2024)
Name of Proceedings : -
Research Presentation
Multi-observational estimation of regional and sectoral emission contributions to the persistent high growth rate of atmospheric CH4 for 2020–2022

Presenter : Niwa Y., Tohjima Y., Terao Y., Saeki T., Ito A., Umezawa T., Yamada K., Sasakawa M., Machida T., Nakaoka S., Nara H., Tanimoto H., Mukai H., Yoshida Y., Morimoto S., Saito K., Tsuboi K., Sawa Y., Matsueda H., Ishijima K., Fujita R., Goto D., Lan X., Schuldt K., Heliasz M., Biermann T., Chmura L., Necki J., Xueref-Remy I.
Name of Society : AGU Fall Meeting 2024 (2024)
Name of Proceedings : -
Research Presentation
Observation activities for atmospheric greenhouse gases by CONTRAIL and other platforms by NIES and collaborators

Presenter : Machida T., Niwa Y., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Terao Y., Tohjima Y., Nara H., Saito T., Nakaoka S., Takao S., Aramaki T., Takahashi Y., Hirata R., Mueller A., Srivastava P., Morino I., Ohyama H., Frey M., Noda H., Mukai H., Shirai T., Tanimoto H.
Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
Name of Proceedings : -
Research Presentation
Development of a dynamic dilution system for COS in air mixture at ambient levels

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Name of Society : 21th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2022) (2022)
Name of Proceedings : Abstracts, 39
Research Presentation
Inverse analysis of fire-induced carbon emission from Equatorial Asia in 2015 with CONTRAIL and NIES-VOS data

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
Name of Society : EGU General Assembly 2021 (2021)
Name of Proceedings : Abstracts
Research Presentation
Fire-induced CO2 emission in Equatorial Asia during the 2015 drought estimated by aircraft and ship observations

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H.
Name of Society : AGU Fall Meeting 2019 (2019)
Name of Proceedings : -
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
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
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
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
Characterization of Carbonaceous Aerosols in Tokyo Metropolitan Area in terms of Multiple Chemical Analysis: Effects of the Diesel Emission Regulations

Presenter : Miyakawa T., Kanaya Y., Komazaki Y., Takigawa M., Miyoshi T., Nara H., Takami A., Mon T., Moteki N., Koike M., Kondo Y.
Name of Society : 2015 Asian Aerosol Conference (2015)
Name of Proceedings : Abstracts, 82-83
Research Presentation
Evaluation of the measurement methods for PM2.5 mass concentration

Presenter : Nara H., Takami A., Miyoshi T.
Name of Society : 2015 Asian Aerosol Conference (2015)
Name of Proceedings : Abstracts, 103
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
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
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
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
An accurate CO2 measurement system for standard gases using NDIR CO2 analyzer and CRDS 13CO2 analyzer

Presenter : Katsumata K., Nara H., Tohjima Y., Takahashi Y., Machida T., Mukai H.
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
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
Re-evaluation of NIES CO scale using high concentration gravimetric CO standard gases

Presenter : Katsumata K., Machida T., Tanimoto H., Nara H., 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

View all

Multi-observational estimation of regional and sectoral emission contributions to the persistent high growth rate of atmospheric CH4 for 2020–2022

Presenter : Niwa Y., Tohjima Y., Terao Y., Saeki T., Ito A., Umezawa T., Yamada K., Sasakawa M., Machida T., Nakaoka S., Nara H., Tanimoto H., Mukai H., Yoshida Y., Morimoto S., Saito K., Tsuboi K., Sawa Y., Matsueda H., Ishijima K., Fujita R., Goto D., Lan X., Schuldt K., Heliasz M., Biermann T., Chmura L., Necki J., Xueref-Remy I.
Name of Society : AGU Fall Meeting 2024 (2024)
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
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
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
Unveiling Multi-Scale Emissions and their sources in Japan: Results from First Continuous Cargo Ship observations of Greenhouse Gases and Air Pollutants

Presenter : Srivastava P., Tanimoto H., Mueller A., Zeng J., Nakaoka S., Niwa Y., Nara H.
Name of Society : iCACGP-IGAC 2024 (2024)
Name of Proceedings : -
New tools for greenhouse gas monitoring and satellite validation over oceans: Utilizing commercial ship and aircraft observations and a novel semi-automatic FTIR - VIS spectrometer

Presenter : Mueller A., Tanimoto H., Sugita T., Patra P.K., Frey M., Kleinschek R., Butz A., Morino I., Enders V., Voss K., Nakaoka S., Machida T., Nara H.
Name of Society : iCACGP-IGAC 2024 (2024)
Name of Proceedings : -
Observation activities for atmospheric greenhouse gases by CONTRAIL and other platforms by NIES and collaborators

Presenter : Machida T., Niwa Y., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Terao Y., Tohjima Y., Nara H., Saito T., Nakaoka S., Takao S., Aramaki T., Takahashi Y., Hirata R., Mueller A., Srivastava P., Morino I., Ohyama H., Frey M., Noda H., Mukai H., Shirai T., Tanimoto H.
Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
Name of Proceedings : -
Development of a dynamic dilution system for COS in air mixture at ambient levels

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Name of Society : 21th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2022) (2022)
Name of Proceedings : Abstracts, 39
Inverse analysis of fire-induced carbon emission from Equatorial Asia in 2015 with CONTRAIL and NIES-VOS data

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
Name of Society : EGU General Assembly 2021 (2021)
Name of Proceedings : Abstracts
Fire-induced CO2 emission in Equatorial Asia during the 2015 drought estimated by aircraft and ship observations

Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H.
Name of Society : AGU Fall Meeting 2019 (2019)
Name of Proceedings : -
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
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
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
Characterization of Carbonaceous Aerosols in Tokyo Metropolitan Area in terms of Multiple Chemical Analysis: Effects of the Diesel Emission Regulations

Presenter : Miyakawa T., Kanaya Y., Komazaki Y., Takigawa M., Miyoshi T., Nara H., Takami A., Mon T., Moteki N., Koike M., Kondo Y.
Name of Society : 2015 Asian Aerosol Conference (2015)
Name of Proceedings : Abstracts, 82-83
Evaluation of the measurement methods for PM2.5 mass concentration

Presenter : Nara H., Takami A., Miyoshi T.
Name of Society : 2015 Asian Aerosol Conference (2015)
Name of Proceedings : Abstracts, 103
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 : -
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
An accurate CO2 measurement system for standard gases using NDIR CO2 analyzer and CRDS 13CO2 analyzer

Presenter : Katsumata K., Nara H., Tohjima Y., Takahashi Y., Machida T., Mukai H.
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
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
Re-evaluation of NIES CO scale using high concentration gravimetric CO standard gases

Presenter : Katsumata K., Machida T., Tanimoto H., Nara H., Mukai H.
Name of Society : 15th WMO/IAEA Meet.Experts Carbon Dioxide,Other Greenhouse Gases,Related Tracer Meas.Tech. (2009)
Name of Proceedings : Abstracts

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NARA Hideki

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