Latest Update：2026/03/24 10:40:44

TERAO Yukio

Researcher Name: TERAO Yukio

Div (Section) name/title: Earth System Division（Biogeochemical Cycle Observation Section）／Senior Researcher

Research Subject: Observation, data analysis and modeling of greenhouse gas concentrations and carbon isotopes

Degree(s): Doctor of Science

Professional Qualification(s): Earth Science,Science

Environmental Speciality Field: atmospheric chemistry,climatology and meteorology,climate change

Brief Description of Research: Observations, data analysis and modeling of trends, interannual variability, and seasonal cycle in atmospheric radiocarbon (14CO2), CH4, and N2O observed using cargo ships and ground stations (Hateruma, Ochi-ishi, and Asia).

Career: Mar. 1997 Bachelor of Science, College of Natural Sciences, University of Tsukuba, Japan.
Apr. 2001 Research Fellow of the Japan Society for the Promotion of Science for Young Scientists.
Feb. 2003 Ph.D in Science, Doctoral Program in Geoscience, University of Tsukuba, Japan.
Apr. 2003 NIES Post-doc Fellow, National Institute for Environmental Studies.
Apr. 2004 Postdoctoral Fellow, Division of Engineering and Applied Sciences, Harvard University, USA. (Atmospheric chemistry modeling group)
Feb.2007 NIES Special Researcher, Center for Global Environmental Research, National Institute for Environmental Studies.
Jul.2007 Senior Researcher, Center for Global Environmental Research, National Institute for Environmental Studies.

URL: http://www.cger.nies.go.jp/en/people/terao/

Membership of Academic Society: Meteorological Society of Japan,American Geophysical Union,The Japan Society of Atmospheric Chemistry,Japan Geoscience Union

Research Subject

Fiscal Year: 2025
- 27188 : Climate Change and Air Quality Research Program
- 27203 : Quantitative evaluation of natural and anthropogenic sinks and sources of greenhouse gases at global scale
- 27204 : Quantitative evaluation of anthropogenic sources of SLCFs and greenhouse gases at region, country and city　scale
- 27244 : Earth System Domain: Foresight and Advanced Basic Research
- 27253 : Satellite Observation Project
- 27289 : Grid data development on fossil fuel carbon dioxide emissions and their evaluation with surface observations
- 27320 : Multi-platform observations of the atmospheric GHGs and SLCFs
- 27321 : Long-term monitoring of carbon dioxide isotopes and oxygen for watching the global carbon budget
- 27331 : Long-term shipboard monitoring of atmospheric short-lived climate forcers in Southeast Asia and domestic Pacific coast region
- 27376 : Atmospheric measurements for representative estimations of methane emissions from Japanese cities
- 27413 : Atmospheric and Oceanic Monitoring
- 27492 : Developing the techniques for environmental analyses using the accelerator mass spectrometry
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
- 26874 : Satellite Observation Project
- 26912 : Developing the techniques for environmental analyses using the accelerator mass spectrometry
- 27006 : Characterizing urban methane sources in the two Japanese megacities: Tokyo and Osaka
- 27102 : Atmospheric and Oceanic Monitoring
- 27124 : Multi-platform observations of the atmospheric GHGs and SLCFs
- 27125 : Long-term monitoring of carbon dioxide isotopes and oxygen for watching the global carbon budget
- 27163 : Atmospheric measurements for representative estimations of methane emissions from Japanese cities
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
- 26459 : Satellite Observation Project
- 26478 : Long-term observation of atmospheric oxygen and carbon dioxide isotopes to monitor the impact of global warming on the Earth
- 26479 : Observation of the atmospheric GHGs by using ground sites and aircraft
- 26564 : Characterizing urban methane sources in the two Japanese megacities: Tokyo and Osaka
- 26638 : Developing the techniques for environmental analyses using the accelerator mass spectrometry
- 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
- 26023 : Satellite Observation Project
- 26042 : Developing the techniques for environmental analyses using the accelerator mass spectrometry
- 26067 : Source sampling and stable carbon isotope measurements from various methane source categories in South Asia and Southeast Asia
- 26094 : Long-term observation of atmospheric oxygen and carbon dioxide isotopes to monitor the impact of global warming on the Earth
- 26095 : Observation of the atmospheric GHGs by using ground sites and aircraft
- 26264 : Atmospheric and Oceanic Monitoring
- 26392 : Characterizing urban methane sources in the two Japanese megacities: Tokyo and Osaka
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
- 25556 : Satellite Observation Project
- 25623 : Development of method for estimating carbon and anthropogenic heat emission with a building energy model and monitoring data
- 25624 : Estimation of regional-global methane emissions and refinement of its estimate by GOSAT-2 and surface observations
- 25648 : Long-term observation of atmospheric oxygen and carbon dioxide isotopes to monitor the impact of global warming on the Earth
- 25655 : Earth System Domain: Foresight and Advanced Basic Research
- 25833 : Atmospheric and Oceanic Monitoring
- 25856 : Source sampling and stable carbon isotope measurements from various methane source categories in South Asia and Southeast Asia
- 25929 : Observation of the atmospheric GHGs by using ground sites and aircraft
- 25953 : Developing the techniques for environmental analyses using the accelerator mass spectrometry
Fiscal Year: 2020
- 25113 : Long-term Monitoring and Database for Global Environmental Research and Supporting for Related Activities
- 25122 : Satellite Observation Research Project
- 25127 : Center for Climate Change Adaptation (CCCA)
- 25128 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
- 25281 : Improvement of greenhouse gas emission estimate using GOSAT series
- 25282 : Estimation of regional-global methane emissions and refinement of its estimate by GOSAT-2 and surface observations
- 25283 : Estimate of CO2 emission from megacity
- 25284 : Development of method for estimating carbon and anthropogenic heat emission with a building energy model and monitoring data
- 25327 : Studies on Advancing the Methods for Climate Change Impacts Assessment
- 25336 : Source sampling and stable carbon isotope measurements from various methane source categories in South Asia and Southeast Asia
- 25384 : Development of analytical methods for environmental samples using AMS
- 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
- 24754 : Satellite Observation Research Project
- 24757 : Center for Climate Change Adaptation (CCCA)
- 24772 : Development of a monitoring and evaluation system of the methane bdget for different source categories in East Asia toward intended emission reduction
- 24975 : Studies on Advancing the Methods for Climate Change Impacts Assessment
- 24991 : Estimate of CO2 emission from megacity
- 24992 : Estimation of regional-global methane emissions and refinement of its estimate by GOSAT-2 and surface observations
- 24996 : Development of method for estimating carbon and anthropogenic heat emission with a building energy model and monitoring data
- 25000 : Improvement of greenhouse gas emission estimate using GOSAT series
- 25019 : Atmospheric and Oceanic Monitoring
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
- 24337 : Satellite Observation Research Project
- 24340 : Climate Change Strategy Collaboration Office
- 24417 : Estimation of Regional-Global Methane Emissions and Refinement of Its Estimate by GOSAT-2 and Surface Observations
- 24467 : Integrated observational study of oxygen and isotopes of carbon dioxide in the atmosphere to investigate the climate responses of the global carbon cycle
- 24473 : Development of a Monitoring and Evaluation System of the Methane Budget for Different Source Categories in East Asia toward Intended Emission Reduction
- 24488 : Estimate of CO2 emission from megacity
- 24578 : Atmospheric and Oceanic Monitoring
- 24615 : Development of analytical methods for environmental samples using AMS
Fiscal Year: 2017
- 23837 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23858 : Satellite Observation Research Project
- 23861 : Climate Change Strategy Collaboration Office
- 23877 : Long-term monitoring and database for global environmental research and supporting for related activities
- 23923 : Development of a Monitoring and Evaluation System of the Methane Budget for Different Source Categories in East Asia toward Intended Emission Reduction
- 23937 : Improvement of Methane Emission Estimate from South Asia using GOSAT and Development of an Emission Mitigation Proposal
- 24051 : Integrated observational study of oxygen and isotopes of carbon dioxide in the atmosphere to investigate the climate responses of the global carbon cycle
- 24131 : Development of analytical methods for environmental samples using AMS
- 24146 : Atmospheric and Oceanic Monitoring
Fiscal Year: 2016
- 23399 : Study on multi-scale evaluation system for GHG variation and mitigation
- 23440 : Satellite Observation Research Project
- 23443 : Climate Change Strategy Collaboration Office
- 23448 : Improvement of Methane Emission Estimate from South Asia using GOSAT and Development of an Emission Mitigation Proposal
- 23470 : Long-term monitoring and database for global environmental research and supporting for related activities
- 23501 : Integrated observational study of oxygen and isotopes of carbon dioxide in the atmosphere to investigate the climate responses of the global carbon cycle
- 23735 : Atmospheric and Oceanic Monitoring
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
- 23095 : Integrated observational study of oxygen and isotopes of carbon dioxide in the atmosphere to investigate the climate responses of the global carbon cycle
- 23135 : Improvement of Methane Emission Estimate from South Asia using GOSAT and Development of an Emission Mitigation Proposal
- 23190 : Atmospheric and Oceanic Monitoring
- 23347 : A feasibility study for the development of an observation network targeting greenhouse gases and related materials and their budget in the Asia-Pacific
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
- 22673 : Characterization and quantification of global methane emissions by utilizing GOSAT and in-situ measurements
- 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
- 22851 : The potential of carbon sink/source of Japanese Forest soils
- 22920 : Atmospheric and Oceanic Monitoring
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
- 22217 : Characterization and quantification of global methane emissions by utilizing GOSAT and in-situ measurements
- 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
- 22379 : Atmospheric and Oceanic Monitoring
- 22538 : The potential of carbon sink/source of Japanese Forest soils
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
- 22042 : Characterization and quantification of global methane emissions by utilizing GOSAT and in-situ measurements
- 22116 : The potential of carbon sink/source of Japanese Forest soils
- 22118 : Atmospheric and Oceanic Monitoring
- 22138 : Development of GHG observation by GOSAT and its data analysis
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
- 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
- 21643 : The potential of carbon sink/source of Japanese Forest soils
- 21724 : Research and Development for measurement technique of CO2 sink and emission by forest area
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
- 21092 : Study on long-term variation mechanisms of greenhouse gas concentrations and their regional characteristics
- 21128 : A quantitative analysis of the mechanisms of soil organic carbon accumulation and an experimental evaluation of their effects on climate change
- 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
- 20608 : Study on long-term variation mechanisms of greenhouse gas concentrations and their regional characteristics
- 20617 : Atmospheric and Oceanic Monitoring
- 20721 : A quantitative analysis of the mechanisms of soil organic carbon accumulation and an experimental evaluation of their effects on climate change
- 20732 : Evaluation of the Effect of Global Warming on Soil Respiration of Japanese Forest Ecosystems
Fiscal Year: 2008
- 20307 : Study on long-term variation mechanisms of greenhouse gas concentrations and their regional characteristics

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Research Result (Publication)

Original Paper

Estimation of CO2 fluxes from Tokyo using a global model and tower observation

Presenter : Yamada K., Niwa Y., Terao Y., Tohjima Y., Tsuboi K., Ishijima K., Murayama S.
Title : , Journal of the Meteorological Society of Japan, 103(1):67-85 (2025)
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

Indian Land Carbon Sink Estimated from Surface and GOSAT Observations

Presenter : Raja Nayagam L., Maksyutov S., Janardanan Achari R., Oda T., Tiwari Y.K., Sreenivas G., Datye A., Jain C.D., Ratnam M.V., Sinha V., Hakkim, H., Terao Y., Naja M., Ahmed, M. K., Mukai H., Zeng J., Kaiser J.W., Someya Y., Yoshida Y., Matsunaga T.
Title : , Remote Sensing (2025)
Original Paper

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., Takatsuji S., 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., Sferlazzo
Title : , Atmospheric Chemistry and Physics, 25:6757-6785 (2025)
Original Paper

Measurement report: Mobile measurements to estimate urban methane emissions in Tokyo

Presenter : Umezawa T., Terao Y., Ueyama M., Kameyama S., Lunt M., France J.L.
Title : , Atmospheric Chemistry and Physics, 25:18015-18029 (2025)
Original Paper

Evaluating urban methane emissions and their attributes in a megacity, Osaka, Japan, via mobile and eddy covariance measurements

Presenter : Ueyama M., Umezawa T., Terao Y., Lunt M., France J.L.
Title : , Atmospheric Chemistry and Physics, 25:12513-12534 (2025)
Original Paper

Natural Gas and Biogenic CH4 Emissions from an Urban Center, Sakai, Japan, Based on Simultaneous Measurements of CH4 and C2H6 fluxes Based on the Eddy Covariance Method

Presenter : Ueyama M., Nakaoka A., Umezawa T., Terao Y., Lunt M.
Title : , Environmental Science and Technology, 59(48):25877-25888 (2025)
Original Paper

Assessment of the impact of observations at Nainital (India) and Comilla (Bangladesh) on the CH4 flux inversion

Presenter : Belikov D.A., Patra P.K., Terao Y., Naja M., Ahmed M.K., Saitoh N.
Title : , Progress in Earth and Planetary Science, 11: (2024)
Original Paper

Potential of using CO2 observations over India in a regional carbon budget estimation by improving the modelling system

Presenter : Thilakan V., Pillai D., Sukumaran J., Gerbig C., Hakkim H., Sinha V., Terao Y., Naja M., Deshpande M.V.
Title : , Atmospheric Chemistry and Physics, 24:5315-5335 (2024)
Original Paper

Source identification of carbon monoxide over the greater Tokyo area: Tower measurement network and evaluation of global/regional model simulations at different resolutions

Presenter : Itahashi S., Terao Y., Ikeda K., Tanimoto H.
Title : , Atmospheric Environment, 23:100284 (2024)
Original Paper

Observed APO Seasonal Cycle in the Pacific: Estimation of Autumn O2 Oceanic Emissions

Presenter : Tohjima Y., Shirai T., Ishizawa M., Mukai H., Machida T., Sasakawa M., Terao Y., Tsuboi K., Takao S., Nakaoka S.
Title : , Global Biogeochemical Cycles, 38: (2024)
Original Paper

Reconstructing high-resolution in-situ vertical carbon dioxide profiles in the sparsely monitored Asian monsoon region

Presenter : Vogel B., Volk C.M., Wintel J., Lauther V., Muller R., Patra P.K., Riese M., Terao Y., Stroh F.
Title : , COMMUNICATIONS EARTH & ENVIRONMENT, 4(72): (2023)
Original Paper

Anthropogenic CO2 Emissions Changes in an Urban Area of Tokyo, Japan, Due to the COVID-19 Pandemic: A Case Study During the State of Emergency in April-May 2020

Presenter : Sugawara H., Ishidoya S., Terao Y., Takane Y., Kikegawa Y., Nakajima K.
Title : , Geophysical Research Letters, 48(e2021GL092600): (2021)
Original Paper

Measurement report: Regional characteristics of seasonal and long-term variations in greenhouse gases at Nainital, India, and Comilla, Bangladesh

Presenter : Nomura S., Naja M., Ahmed M.K., Mukai H., Terao Y., Machida T., Sasakawa M., Patra P. K.
Title : , Atmospheric Chemistry and Physics, 21:16427-16452 (2021)
Original Paper

O2:CO2 exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO2 emissions

Presenter : Ishidoya S., Sugawara H., Terao Y., Kaneyasu N., Aoki N., Tsuboi K., Kondo H.
Title : , Atmospheric Chemistry and Physics, 20:5293-5308 (2020)
Original Paper

Estimation of PM2.5 Emission Sources in the Tokyo Metropolitan Area by Simultaneous Measurements of Particle Elements and Oxidative Ratio in Air

Presenter : Kaneyasu N., Ishidoya S., Terao Y., Mizuno Y., Sugawara H.
Title : , ACS Earth and Space Chemistry, 4(2):297-304 (2020)
Original Paper

Methane budget of East Asia, 1990-2015: A bottom-up evaluation

Presenter : Ito A., Tohjima Y., Saito T., Umezawa T., Hajima T., Hirata R., Saito M., Terao Y.
Title : , Science of the Total Environment, 676:40-52 (2019)
Other Publications

Greenhouse gases and air pollutants monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C., Ilahi A.F.
Title : , IOP Conference Series: Earth and Environmental Science, 303(1):012038 (2019)
Other Publications

Real Time Air Quality Monitoring System in Three Sites (Bogor, Cibeureum and Serpong)

Presenter : Immanuel G.S., Rakhman A., Budianto B., Boer R., Ardiansyah M., Hamid N., Gumilang I., Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Title : , IOP Conference Series: Earth and Environmental Science, 303(1):012055 (2019)
Original Paper

Variation of surface radiocarbon in the North Pacific during summer season 2004-2016

Presenter : Aramaki T., Nakaoka S., Terao Y., Kobayashi T., Osonoi Y., Mukai H., Tohjima Y.
Title : , Radiocarbon, 61(5):1367-1375 (2019)
Original Paper

Methane and nitrous oxide emissions from conventional and modified rice cultivation systems in South India

Presenter : Oo A.Z., Sudo S., Inubushi K., Mano M., Yamamoto A., Ono K., Osawa T., Hayashida S., Patra P.K., Terao Y., Elayakumar P., Vanitha K., Umamageswari C., Jothimani P., Ravi V.
Title : , Agriculture, Ecosystems and Environment, 252:148-158 (2018)
Original Paper

Evaluation of forest CO2 fluxes from sonde measurements in three different climatological areas including Borneo, Malaysia, and Iriomote and Hokkaido, Japan

Presenter : Nomura S., Mukai H., Terao Y., Takagi K., Mohamad M., Jahaya M. F.
Title : , Tellus B Chemical and Physical Meteorology, 70(1): (2018)
Original Paper

Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India

Presenter : Oo A.Z., Sudo S., Inubushi K., Chellappan U., Yamamoto A., Ono K., Mano M., Hayashida S., Koothan V., Osawa T., Terao Y., Palanisamy J., Palanisamy E., Venkatachalam R.
Title : , Agronomy, 8(10):202 (2018)
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

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

HCl and ClO profiles inside the Antarctic vortex as observed by SMILES in November 2009: comparisons with MLS and ACE-FTS instruments

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Manney G.L., Daffer W.H., Sagawa H., Suzuki M., Shiotani M., Walker K.A., Boone C.D., Bernath P.F.
Title : , Atmospheric Measurement Techniques, 6(11):3099-3113 (2013)
Original Paper

Ozone loss rates in the Arctic winter stratosphere during 1994-2000 derived from POAM II/III and ILAS observations: Implications for relationships among ozone loss, PSC occurrence, and temperature

Presenter : Terao Y., Sugita T., Sasano Y.
Title : , Journal of Geophysical Research, 117:D05311 (2012)
Other Publications

HCl/Cly ratios just before the breakup of the Antarctic vortex as observed by SMILES/MLS/ACE-FTS

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Manney G.L., Daffer W.H., Sagawa H., Suzuki M., Shiotani M.
Title : , Proceedings SPIE, Remote Sensing of Atmosphere, Clouds, and Precipitation IV, 8523: (2012)
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

Contribution of stratospheric ozone to the interannual variability of tropospheric ozone in the northern extratropics

Presenter : Terao Y., Logan J.A., Douglass A.R. , Stolarski R.S.
Title : , J.Geophys.Res., 113:D18309 (2008)
Tangent height registration method for the Version 1.4 data retrieval algorithm of the solar occultation sensor ILAS-II

Presenter : Tanaka T., Nakajima H., Sugita T., Ejiri M.K., Irie H.(*1), Saitoh N.(*2), Terao Y.(*3), Kawasaki H.(*4), Yokota T., Sasano Y.
Title : , Appl.Opt., 46(29):7196-7201 (2007)
Validation of the Improved Limb Atmospheric Spectrometer-II(ILAS-II) Version 1.4 nitrous oxide and methane profiles

Presenter : Yokota T., MACHIDA Toshinobu, SUGITA Takafumi, NAKAJIMA Hideaki, TERAO Yukio
Title : , J.Geophys.Res., 111:D22S90 (2006)
Ozone profiles in the high-latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer(ILAS)-II: Comparison with other satellite sensors and ozonesondes

Presenter : Sugita T., Nakajima H., Yokota T., Kanzawa H., Gernandt H.(*2), Herber A.(*2), Gathen P.(*2), Konig-Langlo G.(*2), Tanaka T.(*3), Sasano Y., Terao Y.
Title : , J.Geophys.Res., 111:D11S02 (2006)
Validation of stratospheric nitric acid profiles observed by Improved Limb Atmospheric Spectrometer(ILAS)-II

Presenter : Yokota T., Sasano Y., Sugita T., Nakajima H., Terao Y., Irie H.(*1), Oelhaf H.(*2), Wetzel G.(*2)
Title : , J.Geophys.Res., 111:D11S03 (2006)
Intercomparison of ILAS-II version 1.4 aerosol extinction coefficient at 780 nm with SAGE II,SAGE III,and POAM III

Presenter : Saitoh N.(*1), Hayashida S.(*2), Sugita T., Nakajima H., Yokota T., Hayashi M.(*3), Shiraishi K.(*3), Kanzawa H., Ejiri M.K.(*5), Sasano Y., Terao Y.
Title : , J.Geophys.Res., 111:D11S05 (2006)
Original Paper

Validation of the Improved Limb Atmospheric Spectrometer-II (ILAS-II) Version 1.4 nitrous oxide and methane profiles

Presenter : Ejiri M.K., Terao Y., Sugita T., Nakajima H., Yokota T., Toon G.C., Sen B., Wetzel G., Oelhaf H., Urban J., Murtagh D., Irie H., Saitoh N., Tanaka T., Kanzawa H., Shiotani M., Aoki S., Hashida G., Machida T., Nakazawa T., Kobayashi H., Sasano Y.
Title : , Journal of Geophysical Research, 111(D22S90): (2006)
Observation of ozone depletion and related minor species from the ILAS-II onboard the ADEOS-II satellite

Presenter : Yokota T., , SUGITA Takafumi, NAKAJIMA Hideaki, TERAO Yukio
Title : , Proc.20th Quadrenn.Ozone Symp., 145-146 (2004)
Start of ILAS-II operation for the observation of stratospheric constituents

Presenter : SUGITA Takafumi, TERAO Yukio
Title : , SPARC Newslett., 21 (2003)
Stratospheric ozone loss in the 1996/1997 Arctic winter: evaluation based on multiple trajectory analysis for double-sounded air parcels by ILAS

Presenter : Terao Y.(*1), Sasano Y., Nakajima H., Tanaka H.L.(*1), Yasunari T.(*1)
Title : , J.Geophys.Res., 107(D24):ILS7-1-ILS7-17 (2002)
Analysis of chemical perturbation of stratospheric air parcel along the trajectory during the Arctic winter of 1996/1997 using ILAS data

Presenter : , TERAO Yukio
Title : , Proc.SPIE, 4150:31‐41 (2001)
Current Status of ILAS-II(Improved Limb Atmospheric Spectrometer-II) Onboard the ADEOS-II Satellite to be Launched in 2001,and Results from ILAS Measurements on Ozone Depletion in 1996/1997 Winter in the Northern Hemisphere

Presenter : , SUGITA Takafumi, NAKAJIMA Hideaki, TERAO Yukio
Title : , Proc.SOLVE・THESEO 2000 Sci.Meet., 75‐76 (2000)
ILAS observations of chemical ozone loss in the Arctic vortex during early spring 1997

Presenter : Yokota T., , , NAKAJIMA Hideaki, TERAO Yukio, Kanzawa H.
Title : , Geophys.Res.Lett., 27(2):213‐216 (2000)

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Estimation of CO2 fluxes from Tokyo using a global model and tower observation

Presenter : Yamada K., Niwa Y., Terao Y., Tohjima Y., Tsuboi K., Ishijima K., Murayama S.
Title : , Journal of the Meteorological Society of Japan, 103(1):67-85 (2025)
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)
Indian Land Carbon Sink Estimated from Surface and GOSAT Observations

Presenter : Raja Nayagam L., Maksyutov S., Janardanan Achari R., Oda T., Tiwari Y.K., Sreenivas G., Datye A., Jain C.D., Ratnam M.V., Sinha V., Hakkim, H., Terao Y., Naja M., Ahmed, M. K., Mukai H., Zeng J., Kaiser J.W., Someya Y., Yoshida Y., Matsunaga T.
Title : , Remote Sensing (2025)
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., Takatsuji S., 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., Sferlazzo
Title : , Atmospheric Chemistry and Physics, 25:6757-6785 (2025)
Measurement report: Mobile measurements to estimate urban methane emissions in Tokyo

Presenter : Umezawa T., Terao Y., Ueyama M., Kameyama S., Lunt M., France J.L.
Title : , Atmospheric Chemistry and Physics, 25:18015-18029 (2025)
Evaluating urban methane emissions and their attributes in a megacity, Osaka, Japan, via mobile and eddy covariance measurements

Presenter : Ueyama M., Umezawa T., Terao Y., Lunt M., France J.L.
Title : , Atmospheric Chemistry and Physics, 25:12513-12534 (2025)
Natural Gas and Biogenic CH4 Emissions from an Urban Center, Sakai, Japan, Based on Simultaneous Measurements of CH4 and C2H6 fluxes Based on the Eddy Covariance Method

Presenter : Ueyama M., Nakaoka A., Umezawa T., Terao Y., Lunt M.
Title : , Environmental Science and Technology, 59(48):25877-25888 (2025)
Assessment of the impact of observations at Nainital (India) and Comilla (Bangladesh) on the CH4 flux inversion

Presenter : Belikov D.A., Patra P.K., Terao Y., Naja M., Ahmed M.K., Saitoh N.
Title : , Progress in Earth and Planetary Science, 11: (2024)
Potential of using CO2 observations over India in a regional carbon budget estimation by improving the modelling system

Presenter : Thilakan V., Pillai D., Sukumaran J., Gerbig C., Hakkim H., Sinha V., Terao Y., Naja M., Deshpande M.V.
Title : , Atmospheric Chemistry and Physics, 24:5315-5335 (2024)
Source identification of carbon monoxide over the greater Tokyo area: Tower measurement network and evaluation of global/regional model simulations at different resolutions

Presenter : Itahashi S., Terao Y., Ikeda K., Tanimoto H.
Title : , Atmospheric Environment, 23:100284 (2024)
Observed APO Seasonal Cycle in the Pacific: Estimation of Autumn O2 Oceanic Emissions

Presenter : Tohjima Y., Shirai T., Ishizawa M., Mukai H., Machida T., Sasakawa M., Terao Y., Tsuboi K., Takao S., Nakaoka S.
Title : , Global Biogeochemical Cycles, 38: (2024)
Reconstructing high-resolution in-situ vertical carbon dioxide profiles in the sparsely monitored Asian monsoon region

Presenter : Vogel B., Volk C.M., Wintel J., Lauther V., Muller R., Patra P.K., Riese M., Terao Y., Stroh F.
Title : , COMMUNICATIONS EARTH & ENVIRONMENT, 4(72): (2023)
Anthropogenic CO2 Emissions Changes in an Urban Area of Tokyo, Japan, Due to the COVID-19 Pandemic: A Case Study During the State of Emergency in April-May 2020

Presenter : Sugawara H., Ishidoya S., Terao Y., Takane Y., Kikegawa Y., Nakajima K.
Title : , Geophysical Research Letters, 48(e2021GL092600): (2021)
Measurement report: Regional characteristics of seasonal and long-term variations in greenhouse gases at Nainital, India, and Comilla, Bangladesh

Presenter : Nomura S., Naja M., Ahmed M.K., Mukai H., Terao Y., Machida T., Sasakawa M., Patra P. K.
Title : , Atmospheric Chemistry and Physics, 21:16427-16452 (2021)
O2:CO2 exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO2 emissions

Presenter : Ishidoya S., Sugawara H., Terao Y., Kaneyasu N., Aoki N., Tsuboi K., Kondo H.
Title : , Atmospheric Chemistry and Physics, 20:5293-5308 (2020)
Estimation of PM2.5 Emission Sources in the Tokyo Metropolitan Area by Simultaneous Measurements of Particle Elements and Oxidative Ratio in Air

Presenter : Kaneyasu N., Ishidoya S., Terao Y., Mizuno Y., Sugawara H.
Title : , ACS Earth and Space Chemistry, 4(2):297-304 (2020)
Methane budget of East Asia, 1990-2015: A bottom-up evaluation

Presenter : Ito A., Tohjima Y., Saito T., Umezawa T., Hajima T., Hirata R., Saito M., Terao Y.
Title : , Science of the Total Environment, 676:40-52 (2019)
Variation of surface radiocarbon in the North Pacific during summer season 2004-2016

Presenter : Aramaki T., Nakaoka S., Terao Y., Kobayashi T., Osonoi Y., Mukai H., Tohjima Y.
Title : , Radiocarbon, 61(5):1367-1375 (2019)
Methane and nitrous oxide emissions from conventional and modified rice cultivation systems in South India

Presenter : Oo A.Z., Sudo S., Inubushi K., Mano M., Yamamoto A., Ono K., Osawa T., Hayashida S., Patra P.K., Terao Y., Elayakumar P., Vanitha K., Umamageswari C., Jothimani P., Ravi V.
Title : , Agriculture, Ecosystems and Environment, 252:148-158 (2018)
Evaluation of forest CO2 fluxes from sonde measurements in three different climatological areas including Borneo, Malaysia, and Iriomote and Hokkaido, Japan

Presenter : Nomura S., Mukai H., Terao Y., Takagi K., Mohamad M., Jahaya M. F.
Title : , Tellus B Chemical and Physical Meteorology, 70(1): (2018)
Mitigation Potential and Yield-Scaled Global Warming Potential of Early-Season Drainage from a Rice Paddy in Tamil Nadu, India

Presenter : Oo A.Z., Sudo S., Inubushi K., Chellappan U., Yamamoto A., Ono K., Mano M., Hayashida S., Koothan V., Osawa T., Terao Y., Palanisamy J., Palanisamy E., Venkatachalam R.
Title : , Agronomy, 8(10):202 (2018)
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)
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)
HCl and ClO profiles inside the Antarctic vortex as observed by SMILES in November 2009: comparisons with MLS and ACE-FTS instruments

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Manney G.L., Daffer W.H., Sagawa H., Suzuki M., Shiotani M., Walker K.A., Boone C.D., Bernath P.F.
Title : , Atmospheric Measurement Techniques, 6(11):3099-3113 (2013)
Ozone loss rates in the Arctic winter stratosphere during 1994-2000 derived from POAM II/III and ILAS observations: Implications for relationships among ozone loss, PSC occurrence, and temperature

Presenter : Terao Y., Sugita T., Sasano Y.
Title : , Journal of Geophysical Research, 117:D05311 (2012)
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)
Contribution of stratospheric ozone to the interannual variability of tropospheric ozone in the northern extratropics

Presenter : Terao Y., Logan J.A., Douglass A.R. , Stolarski R.S.
Title : , J.Geophys.Res., 113:D18309 (2008)
Validation of the Improved Limb Atmospheric Spectrometer-II (ILAS-II) Version 1.4 nitrous oxide and methane profiles

Presenter : Ejiri M.K., Terao Y., Sugita T., Nakajima H., Yokota T., Toon G.C., Sen B., Wetzel G., Oelhaf H., Urban J., Murtagh D., Irie H., Saitoh N., Tanaka T., Kanzawa H., Shiotani M., Aoki S., Hashida G., Machida T., Nakazawa T., Kobayashi H., Sasano Y.
Title : , Journal of Geophysical Research, 111(D22S90): (2006)

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Greenhouse gases and air pollutants monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C., Ilahi A.F.
Title : , IOP Conference Series: Earth and Environmental Science, 303(1):012038 (2019)
Real Time Air Quality Monitoring System in Three Sites (Bogor, Cibeureum and Serpong)

Presenter : Immanuel G.S., Rakhman A., Budianto B., Boer R., Ardiansyah M., Hamid N., Gumilang I., Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Title : , IOP Conference Series: Earth and Environmental Science, 303(1):012055 (2019)
HCl/Cly ratios just before the breakup of the Antarctic vortex as observed by SMILES/MLS/ACE-FTS

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Manney G.L., Daffer W.H., Sagawa H., Suzuki M., Shiotani M.
Title : , Proceedings SPIE, Remote Sensing of Atmosphere, Clouds, and Precipitation IV, 8523: (2012)

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Research Result (Presentation)

Research Presentation

First vehicle-based mobile measurements to estimate urban methane emissions in Tokyo

Presenter : Umezawa T., Terao Y., Ueyama M.
Name of Society : 22nd Annual Meeting of Asia Oceania Geosciences Society (AOGS2025) (2025)
Name of Proceedings : -
Research Presentation

Methane emission sources in South Asia inferred from observations of stable carbon isotope ratio of atmospheric methane

Presenter : Terao Y., Umezawa T., Ahmed M.K., Naja M., Machida T., Sasakawa M., Rani S., Mukai H., Patra P.K.
Name of Society : 22nd Annual Meeting of Asia Oceania Geosciences Society (AOGS2025) (2025)
Name of Proceedings : -
Research Presentation

Urban CO2 simulations for the Greater Tokyo Area based on high-resolution modeling and comparison with tower observation network

Presenter : Yang Z., Terao Y., Lauvaux T., Abdallah C, Oda T., Nishihashi M., Saito M., Ishidoya S., Sugawara H., Machida T., Sasakawa M., Tohjima Y.
Name of Society : The 21st International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-21) (2025)
Name of Proceedings : Abstracts
Research Presentation

Inverse analysis with in-situ/flask and GOSAT observations to disentangle regional and sectoral emission contributions to the surge 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., Takatsuji S., 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., Sferlazzo D.
Name of Society : IWGGMS-21 (2025)
Name of Proceedings : Abstracts
Research Presentation

High-precision monitoring of combustion-origin CO2 concentrations in a megacity using simultaneous observations of CO2 and other combustion- origin species

Presenter : Irie H., Nomoto M., Kamiya Y., Terao Y.
Name of Society : The 21st International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-21) (2025)
Name of Proceedings : Abstracts
Research Presentation

Observations of greenhouse gases and air pollutants in the urban and background atmosphere in Indonesia

Presenter : Terao Y.
Name of Society : Atmospheric Composition and the Asian Monsoon (ACAM) 2025 (2025)
Name of Proceedings : Abstracts
Research Presentation

Examination of anthropogenic CO2 emission inventories using ground-based observations and regional model simulations over the Tokyo Megacity

Presenter : Yang Z., Terao Y., Lauvaux T., Abdallah C., Oda T., Nishihashi M., Saito M., Ishidoya S., Sugawara H., Machida T., Sasakawa M., Tohjima Y.
Name of Society : Japan Geoscience Union Meeting 2025 (2025)
Name of Proceedings : Abstracts
Research Presentation

Decadal changes of terrestrial and ocean CO2 fluxes inferred by multiple top-down and bottom-up approaches

Presenter : Niwa Y., Nakaoka S., Tohjima Y., Ito A., Iida Y., Zeng J., Ishii M., Terao Y., Mukai H., Tsujino H., Toyama K., Sasakawa M., Machida T., Shirai T., Tanimoto H.
Name of Society : 11th International Carbon Dioxide Conference (ICDC11) (2024)
Name of Proceedings : -
Research Presentation

Characterizing Tokyo’s methane sources from vehicle-based measurements

Presenter : Umezawa T., Terao Y., Ueayama M.
Name of Society : Asia Oceania Geosciences Society 21st Annual Meeting (2024)
Name of Proceedings : Abstracts
Research Lecture

Measurement data to support emission reduction actions for the Global Methane Pledge goals

Presenter : Umezawa T., Terao Y., Ueayama M.
Name of Society : 2024 Japan Oil & Gas Methane Workshop: Advancing Multilateral Alignment (2024)
Name of Proceedings : -
Research Presentation

A net CO2 flux from Tokyo evaluated by a model simulation and a tower observation

Presenter : Yamada K., Niwa Y., Terao Y., Tohjima Y., Tsuboi K., Ishijima K., Murayama S.
Name of Society : Asia Oceania Geosciences Society 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 Lecture

Overview of the MOEJ-funded research initiative: monitoring GHGs and SLCFs for climate change mitigation

Presenter : Niwa Y., Terao Y., Tohjima Y., Mueller A., Tanimoto H., Yamada K., Machida T., Nakaoka S., Umezawa T., Saito T., Goto D., Yashiro H., Yamashita Y., Ikeda K.
Name of Society : 21st Tripartite Presidents Meeting among NIER, CRAES and NIES (2024)
Name of Proceedings : Abstracts, 40-49
Research Presentation

Growing emissions and Asian monsoon as dominant factors for atmospheric greenhouse gas variations over Asia

Presenter : Umezawa T., Terao Y., Machida T., Niwa Y., Sasakawa M., Ito A., Matsueda H., Tsuboi K., Ishijima K., Fujita R., Chandra N., Patra P. K., Aoki S., Nakazawa T., Morimoto S.
Name of Society : The 5th Atmospheric Composition and the Asian Monsoon (ACAM) workshop (2023)
Name of Proceedings : -
Research Presentation

Methane sources in South Asia inferred from observations of stable carbon isotope ratio of atmospheric methane

Presenter : Terao Y., Umezawa T., Ahmed M.K. , Manish Naja, Nomura S., Machida T., Sasakawa M., Mukai H., Patra P.K. , Rani S.
Name of Society : The 5th Atmospheric Composition and the Asian Monsoon (ACAM) workshop (2023)
Name of Proceedings : -
Research Presentation

Stable Isotopes of CO2. An Improved INSTAAR Data Set and a Merged Collaborative Product.

Presenter : Michel S., Tans P., Miller J., Brashear C., Ortega J., Clark R., Vaughn B., Moossen H., Rothe M., Allison C., Langenfelds R., Guerette E., Keeling R., Morgan E., Brailsford G., Moss R., Peethambaran, Mukai H., Nomura S., Terao Y., Huang L., Morimoto S.
Name of Society : Global Monitoring Laboratory 51st Global Monitoring Annual Conference (2023)
Name of Proceedings : Abstracts
Multiple observation platforms and inverse/transport simulations for monitoring GHGs around Asia

Presenter : Niwa Y., Tohjima Y., Ishii M., Ito A., YAMADA K., Terao Y., Machida T., Umezawa T., Nakaoka S., Tanimoto H., Iida Y., Tsujino H., Kosugi N., Maki T., Ishijima K., Tsuboi K., Fujita R.
Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
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

Measurements of stable carbon isotope ratio of methane at Hateruma Station, Japan

Presenter : Umezawa T., Terao Y., Tohjima Y., Saito T., Sasakawa M., Mukai H.
Name of Society : The 21st expert meeting on Greenhouse Gas Measurement Techniques (WMO GAW GGMT-2022) (2022)
Name of Proceedings : Abstracts
Research Presentation

WCC and QA/SAC activities and GHG observation by JMA

Presenter : Tohjima Y., Machida T., Terao Y., Sasakawa M., Takatsuji S., Kameoka Y., Kinoshita A., Saito A., Saito K., Ushio N., Yukita K., Yoshida M., Fujiwara S., Iwaki M., Fukuda Y., Sawa Y., Tsuboi K., Ishijima K., Murayama S.
Name of Society : The 21st expert meeting on Greenhouse Gas Measurement Techniques (2022)
Name of Proceedings : Abstracts, 63
Research Presentation

Estimation of regional CH4 flux based on an ensemble of atmospheric inversions

Presenter : Belikov D., Saitoh N., Chandra N., Terao Y., Patra P.K.
Name of Society : Japan Geoscience Union Meeting 2022 (2022)
Name of Proceedings : -
Research Presentation

Assessment of the impact of observations at Nainital (India) and Comilla (Bangladesh) on the CH4 flux inversion

Presenter : Belikov D.A., Terao Y., Patra P.K., Saitoh N., Chandra N.
Name of Society : 日本気象学会2022年度秋季大会 (2022)
Name of Proceedings : 同予稿集, 122:169
Research Lecture

Current Status and Challenges of GHG Observations: Japan’s Contribution to the Paris Agreement

Presenter : Saigusa N., Ito A., Niwa Y., Machida T., Matsunaga T., Tanimoto H., Terao Y.
Name of Society : Towards climate neutrality within 2050: Italy-Japan approaches to Earth observation for CO2 monitoring (2021)
Name of Proceedings : -
Research Presentation

Greenhouse gases and air quality monitoring system for urban anthropogenic emission estimation around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Rakhman A., Immanuel G.S., Nugroho R., Suwedi N., Marufatin A., Salim M.A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Maulani Q., Oda T., Lauvaux T.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Research Presentation

Chemical composition of atmospheric aerosols over Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Rakhman A., Immanuel G.S., Nugroho R., Suwedi N., Marufatin A., Salim M.A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Maulani Q.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Research Presentation

Relative contributions of different methane emission categories in the continental East Asia inferred from stable carbon isotope measurements at Hateruma Station

Presenter : Umezawa T., Saito T., Tohjima Y., Terao Y., Ito A.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Research Lecture

Monitoring anthropogenic and natural sources and sinks of GHGs: Challenges in Asia and Oceania

Presenter : Saigusa N., Machida T., Matsunaga T., Tanimoto H., Niwa Y., Terao Y., Ito A.
Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
Name of Proceedings : iPoster, (008034)
Research Presentation

Greenhouse Gas Analyzing Platform using Ground Sites, Aircraft, Ships, and Satellite-based Data: Japan's Contribution to the Paris Agreement

Presenter : Saigusa N., Machida T., Nakaoka S., Matsunaga T., Tanimoto H., Niwa Y., Terao Y., Ito A.
Name of Society : EGU General Assembly 2020 (2020)
Name of Proceedings : Abstracts
Research Presentation

Atmospheric observations of CO2, 14CO2 and O2 concentrations to capture fossil fuel CO2 emissions from the Greater Tokyo Area

Presenter : Terao Y., Tohjima Y., Ishidoya S., Ouchi M., Osonoi Y., Mukai H., Machida T., Sugawara H., Kaneyasu N., Niwa Y.
Name of Society : EGU General Assembly 2020 (2020)
Name of Proceedings : Abstracts
Research Lecture

Greenhouse gases and related tracer measurements in the atmosphere over South Asia

Presenter : Terao Y., Ahmed Md.K., Naja M., Nomura S., Umezawa T., Machida T., Mukai H., Patra P.K.
Name of Society : International Conference on Earth and Environmental Sciences & Technology for Sustainable Development (ICEEST) 2020 (2020)
Name of Proceedings : Abstracts, 62
Research Presentation

Observed and simulated urban CO2 behavior around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Lauvaux T., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Marufatin A., Sulaiman A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Oda T.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2019) (2019)
Name of Proceedings : Abstracts, 155-156
Research Presentation

GHGs data comparison between NIES observation network (aircrafts, Ships and stations) in the Asian Pacific area and GOSAT

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Sasakawa M., Morino I.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases,and Related Measurement Techniques (GGMT2019) (2019)
Name of Proceedings : Abstract, 94
Research Lecture

Greenhouse gases and related tracer measurements at Tokyo Megacity

Presenter : Terao Y.
Name of Society : Korean Society of Climate Change Research Annual Meeting 2019 (2019)
Name of Proceedings : -
Research Presentation

Comprehensive monitoring project of greenhouse gases and air pollutants around Jakarta megacity in Indonesia

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Marufatin A., Sulaiman A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Lauvaux T., Oda T.
Name of Society : Japan Geoscience Union (JpGU) Meeting 2019 (2019)
Name of Proceedings : Abstracts
Research Presentation

Global inverse analysis of CH4 fluxes using NICAM-TM 4D-Var

Presenter : Niwa Y., Ito A., Machida T., Sasakawa M., Tohjima Y., Terao Y., Umezawa T., Morimoto S., Aoki S., Sawa Y., Tsuboi K., Matsueda H., Dlugokencky E., Harth C., Krummel P. B., Langenfelds R. L., Loh Z. M., Mühle J., O’Doherty S., Prinn R. G., Ramonet M., Salameh P., Sweeney C., Weiss R., Young D., Castaldi S., Noce S., Saunois M., Stavert A. R.
Name of Society : 日本地球惑星科学連合2019年大会 (2019)
Name of Proceedings : -
Research Presentation

Urban landscapes and atmospheric GHG inversions: role of environmental and socio-economic drivers on evaluating mitigation policies

Presenter : Lauvaux T., Mueller K., Ye X., Gurney K., Ramonet M., Ciais P., Nishihashi M., Terao Y., Davis K., Richardson S., Miles N., Duren R., Oda T.
Name of Society : EGU General Assembly 2019 (2019)
Name of Proceedings : Geophysical Research Abstracts, 21(EGU2019-18902-1)
Research Presentation

Simultaneous atmospheric observation of CO2 flux, 14CO2, O2 and CO2 concentrations and aerosol components in Tokyo for partitioning of CO2 flux into emission sources

Presenter : Terao Y., Sugawara H., Ishidoya S., Kaneyasu N.
Name of Society : AGU Fall Meeting 2019 (2019)
Name of Proceedings : -
Research Presentation

Atmospheric greenhouse gas concentrations and carbon isotopic ratio in 2004-2017 at southwestern China

Presenter : Nomura Y., Mukai H., Terao Y., Machida T., Zhou L.
Name of Society : 15th IGAC Science Conference (2018)
Name of Proceedings : iCACGP-IGAC2018 Abstracts, 281
Research Presentation

Observations of long-lived trace gases over the central Himalayas

Presenter : Naja M., Mukai H., Machida T., Ballav S., Terao Y., Nomura S., Kumar R., Srivastava P.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Research Presentation

Real time air quality monitoring system in three sites (Bogor, Cibeureum and Serpong)

Presenter : Immanuel G.S., Rakhman A., Budianto B., Boer R., Ardiansyah M., Hamid N., Gumilang L., Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 169
Research Presentation

Air quality during new year’s eve fireworks 2017 and 2018

Presenter : Rakhman A., Budianto B., Immanuel G.S., Boer R., Ardiansyah M., Nishihashi M., Mukai H., Terao Y., Hashimoto S.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 141
Research Presentation

Greenhouse gases and air pollutants monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C., Ilahi A.F.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 132
Research Presentation

Air pollutants and GHGs monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Research Presentation

Seasonal variation of surface methane observed in North India: An investigation on the contributions of emissions and transport

Presenter : hayashida S., Terao Y., Patra P.K., Matsumi Y., Imasu R., Nomura S., Dhaka S. K. , Jagmohan J., Sharma S.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Research Presentation

Turbulent Flux Measurement for Urban CO2 Emission -Partitioning Eddy Flux into Emission Sources-

Presenter : Sugawara H., Ishidoya S., Terao Y., Ogawa Y.
Name of Society : 10th International Conference on Urban Climate (2018)
Name of Proceedings : -
Research Presentation

NIES’s contribution to GAW GHGs measurements in Malaysia and Indonesia

Presenter : Terao Y.
Name of Society : International Workshop on GAW Activities 2018 (2018)
Name of Proceedings : -
Research Presentation

Variations of surface radiocarbon of the North Pacific in summer season during the past decade

Presenter : Aramaki T., Nakaoka S., Terao Y., Kushibashi S., Kobayashi T., Osonoi Y., Mukai H., Tohjima Y.
Name of Society : 23rd International Radiocarbon Conference (2018)
Name of Proceedings : Book of Abstracts, 149
Research Presentation

Recent progress of GOSAT project and preparation for GOSAT-2 at National Institute for Environmental Studies (NIES)

Presenter : Matsunaga T., Kamei A., Maksyutov S., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Kawazoe F., Terao Y.
Name of Society : 14th International Workshop on Greenhouse Gas Measurements from Space (2018)
Name of Proceedings : Abstracts, 2-3
Research Presentation

Recent progress of GOSAT project and preparation for GOSAT-2 at National Institute for Environmental Studies(NIES)

Presenter : Matsunaga T., Kamei A., Maksyutov S., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Kawazoe F., Terao Y.
Name of Society : Japan Geoscience Union Meeting 2018 (2018)
Name of Proceedings : -, ACG36-P26
Research Presentation

New monitoring project of GHGs and air pollutants around Jakarta, Indonesia

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Katsumata K., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Handayani I.B., Suharguniyawan E., Nugraha M.S.
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

Performance of radiocarbon analysis using NIES-CAMS and initial results for air samples obtained in Indonesia.

Presenter : Osonoi Y., Terao Y., Mukai H., Nishihashi M., Kobayashi T.
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

Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H., Osonoi Y.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 238
Research Presentation

Start of greenhouse gases and related tracer measurements at Tokyo Megacity

Presenter : Terao Y., Machida T., Katsumata K., Tohjima Y., Hoshina Y., Ouchi M., Osonoi Y., Mukai H., Imasu R., Tsuboi K., Murayama S.
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

Regional characteristics on greenhouse gaseous concentrations for thirteen years at Guiyang, China, in comparison with the data of Hateruma Island

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Yiqiang Z., Lingxi Z.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 85
Research Presentation

Atmospheric greenhouse gas concentrations for five years over a tropical forest in Borneo Island

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Jahaya M. F., Mohamad M.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017) (2017)
Name of Proceedings : Abstracts, 66
Research Presentation

Separating short-term CO2 variation into biotic and fossil fuel components based on the atmospheric O2 and CO2 continuous measurements

Presenter : Hoshina Y., Tohjima Y., Terao Y., Katsumata K., Mukai H., Machida T., Osonoi Y.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 170
Research Presentation

Atmospheric GHG Monitoring at Tokyo and Jakarta-Bogor Megacities

Presenter : Terao Y.
Name of Society : 6th Annual Meeting of the LoCARNet (2017)
Name of Proceedings : -
Research Presentation

COMPARISON OF CARBON DIOXIDE MIXING RATIOS FROM IN-SITU MEASUREMENTS BY NDIR AND CRDS ANALYZERS AND BOTTLE SAMPLING MEASUREMENTS AT HATERUMA ISLAND

Presenter : Katsumata K., Mukai H., Sasakawa M., Tohjima Y., Machida T., Terao Y.
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2015) (2015)
Name of Proceedings : Abstracts
Research Presentation

Installation and current status of CAMS system at NIES

Presenter : Osonoi Y., Terao Y., Mukai H., Aramaki T., Kondo M., Uchida M., Kobayashi T., Shibata Y.
Name of Society : 18th WNO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT) (2015)
Name of Proceedings : Abstracts
Research Presentation

Fossil fuel and biogenic partitioning in CO2 emissions from East Asia determined by high-frequency radiocarbon measurements at Hateruma Island

Presenter : Terao Y., Mukai H.
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2015) (2015)
Name of Proceedings : Abstracts
Research Presentation

Estimation in CO2 flux in forest of regional scale by observation of atmospheric CO2 concentration by Top-down methods.

Presenter : Nomura S., Mukai H., Terao Y., Maznorizan Mohamad, Mohad Firdaus Jahaya
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques. (2015)
Name of Proceedings : -
Research Lecture

NIES GHG measurements in Asia and new atmospheric observation system for Indonesia

Presenter : Terao Y., Mukai H., Nomura S., Nishihashi M.
Name of Society : International Workshop on Global Atmosphere Watch (GAW) Activity (2015)
Name of Proceedings : -
Research Presentation

Carbon Flux Estimation in Southeast Asia using a Eulerian-Lagrangian Coupled Inversion System and Observational Data from Multiple Platforms

Presenter : Ishizawa M., Shirai T., Terao Y., Mukai H., Nomura S., Mohamad M., Jahaya M., Inoue M., Morino I., Yoshida Y., Uchino O., Zhuravlev R., Ganshin A., Maksyutov S.
Name of Society : 2015 AGU Fall Meeting (2015)
Name of Proceedings : Abstracts
Research Presentation

Continuous in-situ methane measurements at paddy fields in a rural area of India with poor electric infrastructure, using a low-cost instrument based on open-path near-IR laser absorption spectroscopy

Presenter : Hidemori T., Matsumi Y., Nakayama T., Kawasaki M., Sasago H., Takahashi K., Imasu R., Takeuchi W., Adachi M., Machida T., Terao Y., Nomura S., Dhaka S.K., Singh J.
Name of Society : 2015 AGU Fall Meeting (2015)
Name of Proceedings : Abstracts
Research Lecture

Atmospheric methane concentrations observed by NIES greenhouse gas monitoring network

Presenter : Terao Y.
Name of Society : Remote Sensing of Earth's Atmosphere (2014)
Name of Proceedings : -
Research Presentation

Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H.
Name of Society : Radiocarbon in the Environment Conference 2014 (2014)
Name of Proceedings : Abstracts
Research Presentation

Observations of atmospheric methane concentrations over rice paddies at Karnal, India: Comparison with Nainital, India and Comilla, Bangladesh

Presenter : Terao Y., Nomura S., Mukai H., Machida T., S. Sharma, S. Hayashida, K. Inubushi, M. Naja, M. K. Ahmed, P. K. Patra
Name of Society : Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting (2014)
Name of Proceedings : Abstracts
Research Presentation

Correlation Between O3 and HCl in the Lower Stratosphere as Observed by SMILES

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Sagawa H., Suzuki M., Shiotani M.
Name of Society : Asia Oceania Geosciences Society 11th Annual Meeting (2014)
Name of Proceedings : Abstracts
Research Presentation

Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H.
Name of Society : Japan Geoscience Union Meeting 2014 (2014)
Name of Proceedings : Abstracts
Research Presentation

Investigation of methane flux in South Asia using atmospheric measurements at Nainital, India and global Eulerian-Lagrangian coupled atmospheric model

Presenter : Terao Y., Ishizawa M., Mukai H., Naja M., Nomura S., Machida T., Zhuravlev R., Ganshin A., Maksyutov S.
Name of Society : AGU 2014 Fall Meeting (2014)
Name of Proceedings : -
Research Presentation

Lower stratospheric correlation between O3 and HCl as observed by SMILES in the southern high latitudes

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Sagawa H., Suzuki M., Shiotani M.
Name of Society : SPARC 5th General Assembly (2014)
Name of Proceedings : Abstracts
Research Presentation

Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan: Trends, Interannual variability and seasonal cycle from 2004 to 2012

Presenter : Terao Y., Mukai H.
Name of Society : 9th International Carbon Dioxide Conference (2013)
Name of Proceedings : Abstracts, 296
Research Presentation

New products of GOSAT/TANSO-FTS TIR CO2 and CH4 profiles: Algorithm and initial validation results

Presenter : Saitoh N., Imasu R., Sugita T., Hayashida S., Shiomi K., Kawakami S., Machida T., Sawa Y., Matsueda H., Terao Y.
Name of Society : AGU Fall Meeting 2013 (2013)
Name of Proceedings : Abstracts
Research Presentation

Status report of NIES-TERRA: progress of 17 years’ operation and perspectives for next decade

Presenter : Uchida M., Kobayashi T., Kondo M., Aramaki T., Terao Y., Kato F., Mukai H., Shibata Y.
Name of Society : 5th EAST ASIA AMS SYMPOSIUM (2013)
Name of Proceedings : Abstracts, 52
Research Presentation

Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island, Japan

Presenter : Terao Y., Mukai H., Tohjima Y., Maksyutov S.
Name of Society : 21th International Radiocarbon Conference (2012)
Name of Proceedings : 21th International Radiocarbon Conference abstracts book, 541
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

HCl/Cly ratios just before the breakup of the Antarctic vortex as observed by SMILES/MLS/ACE-FTS

Presenter : Sugita T., Kasai Y, Terao Y., Hayashida S
Name of Society : 8th SPIE Asia-Pacific Remote Sensing (2012)
Name of Proceedings : Abstracts, 16-16
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

High HCl/Cly ratios in the Antarctic vortex as observed by SMILES; comparison with MLS and ACE-FTS

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S.
Name of Society : The 6th Atmospheric Limb Conference (2011)
Name of Proceedings : Program of The 6th Atmospheric Limb Conference
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

Quantitative evaluations of inorganic chlorine chemistry in the stratosphere using a photochemical model

Presenter : Sugita T., Hayashida S., Kasai Y., Terao Y.
Name of Society : SMILES Int.Workshop 2010 (2010)
Name of Proceedings : Program
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

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

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

Preliminary experiment for change in oxygen isotope ratio of CO2 in a glass bottle

Presenter : Mukai H., Machida T., Tohmine K., Kajita Y., Terao Y., Sunaga A.
Name of Society : 14th WMO/IAEA Meet.Experts Carbon Dioxide,Other Greenhouse Gases,Related Tracer Measurement Techniques (2007)
Name of Proceedings : Abstracts
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

Validation of ILAS-II version 1.4 N2O and CH4 profiles

Presenter : Ejiri M., Terao Y.(*1), Sugita T., Nakajima H., Shiotani M.(*2), Kanzawa H.(*3), Sasano Y.
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
Research Presentation

ILAS-II measurements of trace gases,temperature and pressure-comparison with solar occultation sensors

Presenter : Yokota T., Sasano Y., Sugita T., Terao Y., Nakajima H.
Name of Society : AGU 2003 Fall Meet. (2003)
Name of Proceedings : -
Research Presentation

Lagrangian modeling of denitrification observed by ILAS over the arctic and Antarctica

Presenter : Riviere E.D.(*1), Terao Y.(*2), Nakajima H., Lefevre F.(*3)
Name of Society : 6th Eur.Symp.Stratos.Ozone (2002)
Name of Proceedings : Abstracts, 173

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Methane emission sources in South Asia inferred from observations of stable carbon isotope ratio of atmospheric methane

Presenter : Terao Y., Umezawa T., Ahmed M.K., Naja M., Machida T., Sasakawa M., Rani S., Mukai H., Patra P.K.
Name of Society : 22nd Annual Meeting of Asia Oceania Geosciences Society (AOGS2025) (2025)
Name of Proceedings : -
Inverse analysis with in-situ/flask and GOSAT observations to disentangle regional and sectoral emission contributions to the surge 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., Takatsuji S., 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., Sferlazzo D.
Name of Society : IWGGMS-21 (2025)
Name of Proceedings : Abstracts
Observations of greenhouse gases and air pollutants in the urban and background atmosphere in Indonesia

Presenter : Terao Y.
Name of Society : Atmospheric Composition and the Asian Monsoon (ACAM) 2025 (2025)
Name of Proceedings : Abstracts
Decadal changes of terrestrial and ocean CO2 fluxes inferred by multiple top-down and bottom-up approaches

Presenter : Niwa Y., Nakaoka S., Tohjima Y., Ito A., Iida Y., Zeng J., Ishii M., Terao Y., Mukai H., Tsujino H., Toyama K., Sasakawa M., Machida T., Shirai T., Tanimoto H.
Name of Society : 11th International Carbon Dioxide Conference (ICDC11) (2024)
Name of Proceedings : -
Characterizing Tokyo’s methane sources from vehicle-based measurements

Presenter : Umezawa T., Terao Y., Ueayama M.
Name of Society : Asia Oceania Geosciences Society 21st Annual Meeting (2024)
Name of Proceedings : Abstracts
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 : -
Growing emissions and Asian monsoon as dominant factors for atmospheric greenhouse gas variations over Asia

Presenter : Umezawa T., Terao Y., Machida T., Niwa Y., Sasakawa M., Ito A., Matsueda H., Tsuboi K., Ishijima K., Fujita R., Chandra N., Patra P. K., Aoki S., Nakazawa T., Morimoto S.
Name of Society : The 5th Atmospheric Composition and the Asian Monsoon (ACAM) workshop (2023)
Name of Proceedings : -
Methane sources in South Asia inferred from observations of stable carbon isotope ratio of atmospheric methane

Presenter : Terao Y., Umezawa T., Ahmed M.K. , Manish Naja, Nomura S., Machida T., Sasakawa M., Mukai H., Patra P.K. , Rani S.
Name of Society : The 5th Atmospheric Composition and the Asian Monsoon (ACAM) workshop (2023)
Name of Proceedings : -
Estimation of regional CH4 flux based on an ensemble of atmospheric inversions

Presenter : Belikov D., Saitoh N., Chandra N., Terao Y., Patra P.K.
Name of Society : Japan Geoscience Union Meeting 2022 (2022)
Name of Proceedings : -
Assessment of the impact of observations at Nainital (India) and Comilla (Bangladesh) on the CH4 flux inversion

Presenter : Belikov D.A., Terao Y., Patra P.K., Saitoh N., Chandra N.
Name of Society : 日本気象学会2022年度秋季大会 (2022)
Name of Proceedings : 同予稿集, 122:169
Relative contributions of different methane emission categories in the continental East Asia inferred from stable carbon isotope measurements at Hateruma Station

Presenter : Umezawa T., Saito T., Tohjima Y., Terao Y., Ito A.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Urban landscapes and atmospheric GHG inversions: role of environmental and socio-economic drivers on evaluating mitigation policies

Presenter : Lauvaux T., Mueller K., Ye X., Gurney K., Ramonet M., Ciais P., Nishihashi M., Terao Y., Davis K., Richardson S., Miles N., Duren R., Oda T.
Name of Society : EGU General Assembly 2019 (2019)
Name of Proceedings : Geophysical Research Abstracts, 21(EGU2019-18902-1)
Turbulent Flux Measurement for Urban CO2 Emission -Partitioning Eddy Flux into Emission Sources-

Presenter : Sugawara H., Ishidoya S., Terao Y., Ogawa Y.
Name of Society : 10th International Conference on Urban Climate (2018)
Name of Proceedings : -
NIES’s contribution to GAW GHGs measurements in Malaysia and Indonesia

Presenter : Terao Y.
Name of Society : International Workshop on GAW Activities 2018 (2018)
Name of Proceedings : -
Recent progress of GOSAT project and preparation for GOSAT-2 at National Institute for Environmental Studies (NIES)

Presenter : Matsunaga T., Kamei A., Maksyutov S., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Kawazoe F., Terao Y.
Name of Society : 14th International Workshop on Greenhouse Gas Measurements from Space (2018)
Name of Proceedings : Abstracts, 2-3
Atmospheric GHG Monitoring at Tokyo and Jakarta-Bogor Megacities

Presenter : Terao Y.
Name of Society : 6th Annual Meeting of the LoCARNet (2017)
Name of Proceedings : -
Observations of atmospheric methane concentrations over rice paddies at Karnal, India: Comparison with Nainital, India and Comilla, Bangladesh

Presenter : Terao Y., Nomura S., Mukai H., Machida T., S. Sharma, S. Hayashida, K. Inubushi, M. Naja, M. K. Ahmed, P. K. Patra
Name of Society : Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting (2014)
Name of Proceedings : Abstracts
High HCl/Cly ratios in the Antarctic vortex as observed by SMILES; comparison with MLS and ACE-FTS

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S.
Name of Society : The 6th Atmospheric Limb Conference (2011)
Name of Proceedings : Program of The 6th Atmospheric Limb Conference
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)
Quantitative evaluations of inorganic chlorine chemistry in the stratosphere using a photochemical model

Presenter : Sugita T., Hayashida S., Kasai Y., Terao Y.
Name of Society : SMILES Int.Workshop 2010 (2010)
Name of Proceedings : Program
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
Preliminary experiment for change in oxygen isotope ratio of CO2 in a glass bottle

Presenter : Mukai H., Machida T., Tohmine K., Kajita Y., Terao Y., Sunaga A.
Name of Society : 14th WMO/IAEA Meet.Experts Carbon Dioxide,Other Greenhouse Gases,Related Tracer Measurement Techniques (2007)
Name of Proceedings : Abstracts
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)
Validation of ILAS-II version 1.4 N2O and CH4 profiles

Presenter : Ejiri M., Terao Y.(*1), Sugita T., Nakajima H., Shiotani M.(*2), Kanzawa H.(*3), Sasano Y.
Name of Society : AGU 2004 Fall Meet. (2004)
Name of Proceedings : Eos,Transactions, 85(47)
ILAS-II measurements of trace gases,temperature and pressure-comparison with solar occultation sensors

Presenter : Yokota T., Sasano Y., Sugita T., Terao Y., Nakajima H.
Name of Society : AGU 2003 Fall Meet. (2003)
Name of Proceedings : -
Lagrangian modeling of denitrification observed by ILAS over the arctic and Antarctica

Presenter : Riviere E.D.(*1), Terao Y.(*2), Nakajima H., Lefevre F.(*3)
Name of Society : 6th Eur.Symp.Stratos.Ozone (2002)
Name of Proceedings : Abstracts, 173
First vehicle-based mobile measurements to estimate urban methane emissions in Tokyo

Presenter : Umezawa T., Terao Y., Ueyama M.
Name of Society : 22nd Annual Meeting of Asia Oceania Geosciences Society (AOGS2025) (2025)
Name of Proceedings : -
Urban CO2 simulations for the Greater Tokyo Area based on high-resolution modeling and comparison with tower observation network

Presenter : Yang Z., Terao Y., Lauvaux T., Abdallah C, Oda T., Nishihashi M., Saito M., Ishidoya S., Sugawara H., Machida T., Sasakawa M., Tohjima Y.
Name of Society : The 21st International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-21) (2025)
Name of Proceedings : Abstracts
High-precision monitoring of combustion-origin CO2 concentrations in a megacity using simultaneous observations of CO2 and other combustion- origin species

Presenter : Irie H., Nomoto M., Kamiya Y., Terao Y.
Name of Society : The 21st International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-21) (2025)
Name of Proceedings : Abstracts
Examination of anthropogenic CO2 emission inventories using ground-based observations and regional model simulations over the Tokyo Megacity

Presenter : Yang Z., Terao Y., Lauvaux T., Abdallah C., Oda T., Nishihashi M., Saito M., Ishidoya S., Sugawara H., Machida T., Sasakawa M., Tohjima Y.
Name of Society : Japan Geoscience Union Meeting 2025 (2025)
Name of Proceedings : Abstracts
A net CO2 flux from Tokyo evaluated by a model simulation and a tower observation

Presenter : Yamada K., Niwa Y., Terao Y., Tohjima Y., Tsuboi K., Ishijima K., Murayama S.
Name of Society : Asia Oceania Geosciences Society 2024 (2024)
Name of Proceedings : -
Stable Isotopes of CO2. An Improved INSTAAR Data Set and a Merged Collaborative Product.

Presenter : Michel S., Tans P., Miller J., Brashear C., Ortega J., Clark R., Vaughn B., Moossen H., Rothe M., Allison C., Langenfelds R., Guerette E., Keeling R., Morgan E., Brailsford G., Moss R., Peethambaran, Mukai H., Nomura S., Terao Y., Huang L., Morimoto S.
Name of Society : Global Monitoring Laboratory 51st Global Monitoring Annual Conference (2023)
Name of Proceedings : Abstracts
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 : -
Measurements of stable carbon isotope ratio of methane at Hateruma Station, Japan

Presenter : Umezawa T., Terao Y., Tohjima Y., Saito T., Sasakawa M., Mukai H.
Name of Society : The 21st expert meeting on Greenhouse Gas Measurement Techniques (WMO GAW GGMT-2022) (2022)
Name of Proceedings : Abstracts
WCC and QA/SAC activities and GHG observation by JMA

Presenter : Tohjima Y., Machida T., Terao Y., Sasakawa M., Takatsuji S., Kameoka Y., Kinoshita A., Saito A., Saito K., Ushio N., Yukita K., Yoshida M., Fujiwara S., Iwaki M., Fukuda Y., Sawa Y., Tsuboi K., Ishijima K., Murayama S.
Name of Society : The 21st expert meeting on Greenhouse Gas Measurement Techniques (2022)
Name of Proceedings : Abstracts, 63
Greenhouse gases and air quality monitoring system for urban anthropogenic emission estimation around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Rakhman A., Immanuel G.S., Nugroho R., Suwedi N., Marufatin A., Salim M.A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Maulani Q., Oda T., Lauvaux T.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Chemical composition of atmospheric aerosols over Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Rakhman A., Immanuel G.S., Nugroho R., Suwedi N., Marufatin A., Salim M.A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Maulani Q.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts
Greenhouse Gas Analyzing Platform using Ground Sites, Aircraft, Ships, and Satellite-based Data: Japan's Contribution to the Paris Agreement

Presenter : Saigusa N., Machida T., Nakaoka S., Matsunaga T., Tanimoto H., Niwa Y., Terao Y., Ito A.
Name of Society : EGU General Assembly 2020 (2020)
Name of Proceedings : Abstracts
Atmospheric observations of CO2, 14CO2 and O2 concentrations to capture fossil fuel CO2 emissions from the Greater Tokyo Area

Presenter : Terao Y., Tohjima Y., Ishidoya S., Ouchi M., Osonoi Y., Mukai H., Machida T., Sugawara H., Kaneyasu N., Niwa Y.
Name of Society : EGU General Assembly 2020 (2020)
Name of Proceedings : Abstracts
Observed and simulated urban CO2 behavior around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Lauvaux T., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Marufatin A., Sulaiman A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Oda T.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2019) (2019)
Name of Proceedings : Abstracts, 155-156
GHGs data comparison between NIES observation network (aircrafts, Ships and stations) in the Asian Pacific area and GOSAT

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Sasakawa M., Morino I.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases,and Related Measurement Techniques (GGMT2019) (2019)
Name of Proceedings : Abstract, 94
Comprehensive monitoring project of greenhouse gases and air pollutants around Jakarta megacity in Indonesia

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Marufatin A., Sulaiman A., Gunawan D., Suharguniyawan E., Ilahi A.F., Nugraha M.S., Wattimena R.C., Feriaji B., Lauvaux T., Oda T.
Name of Society : Japan Geoscience Union (JpGU) Meeting 2019 (2019)
Name of Proceedings : Abstracts
Global inverse analysis of CH4 fluxes using NICAM-TM 4D-Var

Presenter : Niwa Y., Ito A., Machida T., Sasakawa M., Tohjima Y., Terao Y., Umezawa T., Morimoto S., Aoki S., Sawa Y., Tsuboi K., Matsueda H., Dlugokencky E., Harth C., Krummel P. B., Langenfelds R. L., Loh Z. M., Mühle J., O’Doherty S., Prinn R. G., Ramonet M., Salameh P., Sweeney C., Weiss R., Young D., Castaldi S., Noce S., Saunois M., Stavert A. R.
Name of Society : 日本地球惑星科学連合2019年大会 (2019)
Name of Proceedings : -
Simultaneous atmospheric observation of CO2 flux, 14CO2, O2 and CO2 concentrations and aerosol components in Tokyo for partitioning of CO2 flux into emission sources

Presenter : Terao Y., Sugawara H., Ishidoya S., Kaneyasu N.
Name of Society : AGU Fall Meeting 2019 (2019)
Name of Proceedings : -
Atmospheric greenhouse gas concentrations and carbon isotopic ratio in 2004-2017 at southwestern China

Presenter : Nomura Y., Mukai H., Terao Y., Machida T., Zhou L.
Name of Society : 15th IGAC Science Conference (2018)
Name of Proceedings : iCACGP-IGAC2018 Abstracts, 281
Observations of long-lived trace gases over the central Himalayas

Presenter : Naja M., Mukai H., Machida T., Ballav S., Terao Y., Nomura S., Kumar R., Srivastava P.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Real time air quality monitoring system in three sites (Bogor, Cibeureum and Serpong)

Presenter : Immanuel G.S., Rakhman A., Budianto B., Boer R., Ardiansyah M., Hamid N., Gumilang L., Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 169
Air quality during new year’s eve fireworks 2017 and 2018

Presenter : Rakhman A., Budianto B., Immanuel G.S., Boer R., Ardiansyah M., Nishihashi M., Mukai H., Terao Y., Hashimoto S.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 141
Greenhouse gases and air pollutants monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C., Ilahi A.F.
Name of Society : 1st International Conference on Tropical Meteorology and Atmospheric Sciences (ICTMAS) (2018)
Name of Proceedings : Abstracts, 132
Air pollutants and GHGs monitoring project around Jakarta megacity

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Osonoi Y., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Rakhman A., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Suharguniyawan E., Nugraha M.S., Wattimena R.C.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Seasonal variation of surface methane observed in North India: An investigation on the contributions of emissions and transport

Presenter : hayashida S., Terao Y., Patra P.K., Matsumi Y., Imasu R., Nomura S., Dhaka S. K. , Jagmohan J., Sharma S.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts
Variations of surface radiocarbon of the North Pacific in summer season during the past decade

Presenter : Aramaki T., Nakaoka S., Terao Y., Kushibashi S., Kobayashi T., Osonoi Y., Mukai H., Tohjima Y.
Name of Society : 23rd International Radiocarbon Conference (2018)
Name of Proceedings : Book of Abstracts, 149
Recent progress of GOSAT project and preparation for GOSAT-2 at National Institute for Environmental Studies(NIES)

Presenter : Matsunaga T., Kamei A., Maksyutov S., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Kawazoe F., Terao Y.
Name of Society : Japan Geoscience Union Meeting 2018 (2018)
Name of Proceedings : -, ACG36-P26
New monitoring project of GHGs and air pollutants around Jakarta, Indonesia

Presenter : Nishihashi M., Mukai H., Terao Y., Hashimoto S., Katsumata K., Boer R., Ardiansyah M., Budianto B., Immanuel G.S., Nugroho R., Suwedi N., Rifai A., Ihsan I.M., Sulaiman A., Gunawan D., Handayani I.B., Suharguniyawan E., Nugraha M.S.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017) (2017)
Name of Proceedings : Abstracts
Performance of radiocarbon analysis using NIES-CAMS and initial results for air samples obtained in Indonesia.

Presenter : Osonoi Y., Terao Y., Mukai H., Nishihashi M., Kobayashi T.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017) (2017)
Name of Proceedings : Abstracts
Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H., Osonoi Y.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 238
Start of greenhouse gases and related tracer measurements at Tokyo Megacity

Presenter : Terao Y., Machida T., Katsumata K., Tohjima Y., Hoshina Y., Ouchi M., Osonoi Y., Mukai H., Imasu R., Tsuboi K., Murayama S.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017) (2017)
Name of Proceedings : Abstracts
Regional characteristics on greenhouse gaseous concentrations for thirteen years at Guiyang, China, in comparison with the data of Hateruma Island

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Yiqiang Z., Lingxi Z.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 85
Atmospheric greenhouse gas concentrations for five years over a tropical forest in Borneo Island

Presenter : Nomura S., Mukai H., Terao Y., Machida T., Jahaya M. F., Mohamad M.
Name of Society : 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2017) (2017)
Name of Proceedings : Abstracts, 66
Separating short-term CO2 variation into biotic and fossil fuel components based on the atmospheric O2 and CO2 continuous measurements

Presenter : Hoshina Y., Tohjima Y., Terao Y., Katsumata K., Mukai H., Machida T., Osonoi Y.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts, 170
COMPARISON OF CARBON DIOXIDE MIXING RATIOS FROM IN-SITU MEASUREMENTS BY NDIR AND CRDS ANALYZERS AND BOTTLE SAMPLING MEASUREMENTS AT HATERUMA ISLAND

Presenter : Katsumata K., Mukai H., Sasakawa M., Tohjima Y., Machida T., Terao Y.
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2015) (2015)
Name of Proceedings : Abstracts
Installation and current status of CAMS system at NIES

Presenter : Osonoi Y., Terao Y., Mukai H., Aramaki T., Kondo M., Uchida M., Kobayashi T., Shibata Y.
Name of Society : 18th WNO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT) (2015)
Name of Proceedings : Abstracts
Fossil fuel and biogenic partitioning in CO2 emissions from East Asia determined by high-frequency radiocarbon measurements at Hateruma Island

Presenter : Terao Y., Mukai H.
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT-2015) (2015)
Name of Proceedings : Abstracts
Estimation in CO2 flux in forest of regional scale by observation of atmospheric CO2 concentration by Top-down methods.

Presenter : Nomura S., Mukai H., Terao Y., Maznorizan Mohamad, Mohad Firdaus Jahaya
Name of Society : 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques. (2015)
Name of Proceedings : -
Carbon Flux Estimation in Southeast Asia using a Eulerian-Lagrangian Coupled Inversion System and Observational Data from Multiple Platforms

Presenter : Ishizawa M., Shirai T., Terao Y., Mukai H., Nomura S., Mohamad M., Jahaya M., Inoue M., Morino I., Yoshida Y., Uchino O., Zhuravlev R., Ganshin A., Maksyutov S.
Name of Society : 2015 AGU Fall Meeting (2015)
Name of Proceedings : Abstracts
Continuous in-situ methane measurements at paddy fields in a rural area of India with poor electric infrastructure, using a low-cost instrument based on open-path near-IR laser absorption spectroscopy

Presenter : Hidemori T., Matsumi Y., Nakayama T., Kawasaki M., Sasago H., Takahashi K., Imasu R., Takeuchi W., Adachi M., Machida T., Terao Y., Nomura S., Dhaka S.K., Singh J.
Name of Society : 2015 AGU Fall Meeting (2015)
Name of Proceedings : Abstracts
Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H.
Name of Society : Radiocarbon in the Environment Conference 2014 (2014)
Name of Proceedings : Abstracts
Correlation Between O3 and HCl in the Lower Stratosphere as Observed by SMILES

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Sagawa H., Suzuki M., Shiotani M.
Name of Society : Asia Oceania Geosciences Society 11th Annual Meeting (2014)
Name of Proceedings : Abstracts
Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan

Presenter : Terao Y., Mukai H.
Name of Society : Japan Geoscience Union Meeting 2014 (2014)
Name of Proceedings : Abstracts
Investigation of methane flux in South Asia using atmospheric measurements at Nainital, India and global Eulerian-Lagrangian coupled atmospheric model

Presenter : Terao Y., Ishizawa M., Mukai H., Naja M., Nomura S., Machida T., Zhuravlev R., Ganshin A., Maksyutov S.
Name of Society : AGU 2014 Fall Meeting (2014)
Name of Proceedings : -
Lower stratospheric correlation between O3 and HCl as observed by SMILES in the southern high latitudes

Presenter : Sugita T., Kasai Y., Terao Y., Hayashida S., Sagawa H., Suzuki M., Shiotani M.
Name of Society : SPARC 5th General Assembly (2014)
Name of Proceedings : Abstracts
Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island and Cape Ochi-ishi, Japan: Trends, Interannual variability and seasonal cycle from 2004 to 2012

Presenter : Terao Y., Mukai H.
Name of Society : 9th International Carbon Dioxide Conference (2013)
Name of Proceedings : Abstracts, 296
New products of GOSAT/TANSO-FTS TIR CO2 and CH4 profiles: Algorithm and initial validation results

Presenter : Saitoh N., Imasu R., Sugita T., Hayashida S., Shiomi K., Kawakami S., Machida T., Sawa Y., Matsueda H., Terao Y.
Name of Society : AGU Fall Meeting 2013 (2013)
Name of Proceedings : Abstracts
Status report of NIES-TERRA: progress of 17 years’ operation and perspectives for next decade

Presenter : Uchida M., Kobayashi T., Kondo M., Aramaki T., Terao Y., Kato F., Mukai H., Shibata Y.
Name of Society : 5th EAST ASIA AMS SYMPOSIUM (2013)
Name of Proceedings : Abstracts, 52
Observations of atmospheric radiocarbon in carbon dioxide at Hateruma Island, Japan

Presenter : Terao Y., Mukai H., Tohjima Y., Maksyutov S.
Name of Society : 21th International Radiocarbon Conference (2012)
Name of Proceedings : 21th International Radiocarbon Conference abstracts book, 541
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
HCl/Cly ratios just before the breakup of the Antarctic vortex as observed by SMILES/MLS/ACE-FTS

Presenter : Sugita T., Kasai Y, Terao Y., Hayashida S
Name of Society : 8th SPIE Asia-Pacific Remote Sensing (2012)
Name of Proceedings : Abstracts, 16-16
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)
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
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

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Measurement data to support emission reduction actions for the Global Methane Pledge goals

Presenter : Umezawa T., Terao Y., Ueayama M.
Name of Society : 2024 Japan Oil & Gas Methane Workshop: Advancing Multilateral Alignment (2024)
Name of Proceedings : -
Overview of the MOEJ-funded research initiative: monitoring GHGs and SLCFs for climate change mitigation

Presenter : Niwa Y., Terao Y., Tohjima Y., Mueller A., Tanimoto H., Yamada K., Machida T., Nakaoka S., Umezawa T., Saito T., Goto D., Yashiro H., Yamashita Y., Ikeda K.
Name of Society : 21st Tripartite Presidents Meeting among NIER, CRAES and NIES (2024)
Name of Proceedings : Abstracts, 40-49
Current Status and Challenges of GHG Observations: Japan’s Contribution to the Paris Agreement

Presenter : Saigusa N., Ito A., Niwa Y., Machida T., Matsunaga T., Tanimoto H., Terao Y.
Name of Society : Towards climate neutrality within 2050: Italy-Japan approaches to Earth observation for CO2 monitoring (2021)
Name of Proceedings : -
Monitoring anthropogenic and natural sources and sinks of GHGs: Challenges in Asia and Oceania

Presenter : Saigusa N., Machida T., Matsunaga T., Tanimoto H., Niwa Y., Terao Y., Ito A.
Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
Name of Proceedings : iPoster, (008034)
Greenhouse gases and related tracer measurements in the atmosphere over South Asia

Presenter : Terao Y., Ahmed Md.K., Naja M., Nomura S., Umezawa T., Machida T., Mukai H., Patra P.K.
Name of Society : International Conference on Earth and Environmental Sciences & Technology for Sustainable Development (ICEEST) 2020 (2020)
Name of Proceedings : Abstracts, 62
Greenhouse gases and related tracer measurements at Tokyo Megacity

Presenter : Terao Y.
Name of Society : Korean Society of Climate Change Research Annual Meeting 2019 (2019)
Name of Proceedings : -
NIES GHG measurements in Asia and new atmospheric observation system for Indonesia

Presenter : Terao Y., Mukai H., Nomura S., Nishihashi M.
Name of Society : International Workshop on Global Atmosphere Watch (GAW) Activity (2015)
Name of Proceedings : -
Atmospheric methane concentrations observed by NIES greenhouse gas monitoring network

Presenter : Terao Y.
Name of Society : Remote Sensing of Earth's Atmosphere (2014)
Name of Proceedings : -

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TERAO Yukio

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