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4. NIWA Yosuke

Researcher Name

NIWA Yosuke

Div (Section) name/title

Earth System Division(Biogeochemical Cycle Modeling and Analysis Section)/Chief Senior Researcher

Research Subject

carbon cycle, inverse analysis, numerical modeling

Degree(s)

Ph.D.

Professional Qualification(s)

Science

Environmental Speciality Field

atmospheric science,carbon cycle

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
  • 27396 : Long-term analysis of greenhouse gases in the polar region with the Siberian tower network
  • 27430 : Development of a modeling infrastructure for GHG-SLCF integrated analyses
  • 27431 : Development of an observation-based early estimation system for surface fluxes of GHG and other related species
  • 27478 : Supporting Activities of Global Carbon Project
  • 27480 : Development of a greenhouse gas monitoring system from city to global scales using commercial airliners
  • 27529 : Study on the concept of a future greenhouse gas observation satellite mission
• 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
  • 27027 : Development of a modeling infrastructure for GHG-SLCF integrated analyses
  • 27071 : Development of an observation-based early estimation system for surface fluxes of GHG and other related species
  • 27097 : Supporting Activities of Global Carbon Project
  • 27103 : Development of a greenhouse gas monitoring system from city to global scales using commercial airliners
• 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
  • 26625 : GHG budget estimation and observation strategy planning using an atmospheric model
  • 26626 : Development of a modeling infrastructure for GHG-SLCF integrated analyses
  • 26651 : Development of a greenhouse gas monitoring system from city to global scales using commercial airliners
  • 26690 : Supporting Activities of Global Carbon Project
• 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
  • 26112 : Supporting Activities of Global Carbon Project
  • 26246 : GHG budget estimation and observation strategy planning using an atmospheric model
  • 26266 : Development of a greenhouse gas monitoring system from city to global scales using commercial airliners
  • 26351 : Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation
• 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
  • 25655 : Earth System Domain: Foresight and Advanced Basic Research
  • 25803 : Supporting Activities of Global Carbon Project
  • 25818 : Development of a long-term 4D-Var system for multi-scale flux inversion of CO2
  • 25819 : An integrated GHG top-down analysis for Asia using multi-species aircraft observations
  • 25823 : GHG budget estimation and observation strategy planning using an atmospheric model
  • 25855 : Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation
  • 25875 : Development of a greenhouse gas monitoring system from city to global scales using commercial airliners
• Fiscal Year: 2020
  • 25122 : Satellite Observation Research Project
  • 25128 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
  • 25369 : Development of a long-term 4D-Var system for multi-scale flux inversion of CO2
  • 25373 : An integrated GHG top-down analysis for Asia using multi-species aircraft observations
  • 25412 : Long-term 3D observation of greenhouse gases by commercial airliner and its data distribution system
  • 25455 : Large Ensemble Atmospheric and Environmental Prediction for Disaster Prevention and Mitigation
• Fiscal Year: 2019
  • 24708 : Study on Multi-scale Evaluation System for GHG Variation and Mitigation
  • 24754 : Satellite Observation Research Project
  • 24804 : Development of an integrated observation and analysis system for monitoring greenhouse gas sources and sinks
  • 24850 : Long-term 3D observation of greenhouse gases by commercial airliner and its data distribution system
  • 24851 : Development of an integrated observation and analysis system for monitoring greenhouse gas sources and sinks
  • 24852 : Development of a long-term 4D-Var system for multi-scale flux inversion of CO2
• Fiscal Year: 2018
  • 24291 : Study on multi-scale evaluation system for GHG variation and mitigation
  • 24337 : Satellite Observation Research Project
  • 24426 : Development of an integrated observation and analysis system for monitoring greenhouse gas sources and sinks
  • 24439 : Understanding of three-dimensional structures of atmospheric GHGs with aircraft, satellite, and a transport model
  • 24441 : Development of an integrated observation and analysis system for monitoring greenhouse gas sources and sinks
  • 24579 : Long-term 3D observation of greenhouse gases by commercial airliner and its data distribution system

Research Result (Publication)

• all
• Original Paper
• Review
• Other Publications

• Original Paper
  Global Carbon Budget 2025

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Bakker D.C.E., Hauck J., Landschutzer P., Le Quere C., Li H., Luijkx I.T., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S. , Canadell J.G., Ciais P., Aas K., Alin S.R., Anthoni P., Barbero L., Bates N.R., Bellouin N., Benoit-Cattin A., Berghoff C.F., Bernardello R., Bopp L., Brasika I.B.M., Chamberlain M.A., Chandra N., Chevallier F., Chini L.P., Collier N.O., Colligan T.H., Cronin M., Djeutchouang L., Dou X., Enright M.P., Enyo K., Erb M., Evans W., Feely R.A., Feng L., Ford D.J., Foster A., Fransner F., Gasser T., Gehlen M., Gkritzalis T., Goncalves De Souza J., Grassi G., Gregor L, Gruber N., Guenet B., Gurses O., Harrington K., Harris I., Heinke J., Hurtt G.C., Iida Y., Ilyina T., Ito A., Jacobson A.R., Jain A.K., Jarnikova T., Jersild A., Jiang F., Jones S.D., Kato E., Keeling R. F., Goldewijk K.K., Knauer J., Kong Y., Korsbakken J.I., Koven C., Kunimitsu T., Lan X., Liu J., Liu Z., Liu Z., Lo Monaco C., Ma L., Marland G., McGuire P.C., McKinley G.A., Melton J., Monacci N., Monier E., Morgan E.J., Munro D.R., Muller J.D., Nakaoka S., Raja Nayagam L., Niwa Y., Nutzel T., Olsen A., Omar A.M., Pan N., Pandey S., Pierrot D., Qin Z., Regnier P.A.G., Rehder G., Resplandy L., Roobaert A., Rosan T.M., Rodenbeck C., Schwinger J., Skjelvan I., Smallman T.L., Spada V., Sreeush M. G., Sun Q., Sutton A.J., Sweeney C., Swingedouw D., Seferian R., Takao S., Tatebe H., Tian H., Tian X., Tilbrook B., Tsujino H., Tubiello F., van Ooijen E., van der Werf G., van de Velde S.J., Walker A., Wanninkhof R., Yang X., Yuan W., Yue X., Zeng J.
  Title : , Earth System Science Data, 18(5):3211-3288 (2026)
• Original Paper
  The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): Objectives, conceptual framework and scientific contributions

  Presenter : Tanimoto H., Matsunaga T., Someya Y., Fujinawa T., Ohyama H., Morino I., Yashiro H., Sugita T., Inomata S., Mueller A., Saeki T., Yoshida Y., Niwa Y., Saito M., Noda H., Yamashita Y., Ikeda K., Saigusa N., Machida T., Frey M., Lim H., Srivastava P., Jin Y., Shimizu A., Nishizawa T., Kanaya Y., Sekiya T., Patra P., Takigawa M., Bisht J., Kasai Y., Sato T.
  Title : , Progress in Earth and Planetary Science, 12(8): (2025)
• Other Publications
  Future Collaboration between the United States and Japan for Possible Development of a Japan GHG Center

  Presenter : Tanimoto H., Machida T., Shirai T., Niwa Y., Matsunaga T., Saeki T., Yashiro H., Saigusa N., Someya Y., Umezawa T., Kanaya Y., Patra P., Atsushi S., Sawa Y., Suda K., Kondo M., Ito A., Ochiai O., Suto H., Okano S., Ishihara H., Tsuboi K., Ohara K., Takatsuji S., Kawasaki T., Kavvada A., Lefer B., Boukabara S.A., Worden J., Wooldridge C., Kondragunta S., Su W.
  Title : , Bulletin of the American Meteorological Society, 106:E197-E203 (2025)
• Original Paper
  Global greenhouse gas reconciliation 2022

  Presenter : Deng Z., Ciais P., Hu L., Martinez A., Saunois M., Thompson R. L., Tibrewal K., Peters W., Byrne B., Grassi G., Palmer P., Luijkx I.T., Liu Z., Liu J., Fang X., Wang T., Tian H., Tanaka K., Bastos A., Stich S., Poulter B., Albergel C., Tsuruta A., Maksyutov S., Janardanan Achari R., Niwa Y., Zheng B., Thanwerdas J., Belikov D., Segers A., Chevallier F.
  Title : , Earth System Science Data, 17:1121-1152 (2025)
• Original Paper
  Wildfires offset the increasing but spatially heterogeneous Arctic-boreal CO2 uptake

  Presenter : Virkkala A.-M., Rogers B.M., Watts J., Arndt K.A., Potter S., Boike J., Bret-Harte M.S., Burke E., Burrell A., Chae Namyi, Chatterjee A., Chevallier F., Christensen T.R., Commane R., Dolman H., Edgar C.W., Elberling B., Emmerton C.A., Euskirchen E.S., Feng L., Gockede M., Grelle A., Helbig M., Holl D., Jarveoja J., Karsanaev S.V., Kobayashi H., Kutzbach L., Liu J., Luijkx I.T., Lopez-Blanco E., Lunneberg K., Mammarella I., Marushchak M.E., Mastepanov M., Matsuura Y., Maximov T.C., Merbold L., Meyer G. , Nilsson M. B., Niwa Y., Oechel W., Palmer P.I., Park S.-J., Parmentier F.-J. W., Peichl M., Peters W., Petrov R., Quinton W., Rodenbeck C., Sachs T., Schulze C., Sonnentag O., Louis V.L., Tuittila E.-S., Ueyama M., Varlagin A., Zona D., Natali S.M.
  Title : , Nature Climate Change, 15:188-195 (2025)
• Original Paper
  Global Carbon Budget 2024

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Hauck J., Landschutzer P., Quere C.L., Li H., Luijkx I.T., Olsen A., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson R.B., Alin S.R., Arneth A., Arora V., Bates N.R., Becker M., Bellouin N., Berghoff C.F., Bittig H.C., Bopp L., Cadule P., Campbell K., Chamberlain M.A., Chandra N., Chevallier F., Chini L.P., Colligan T., Decayeux J., Djeutchouang L.M., Dou X., Rojas C.D., Enyo K., Evans W., Fay A.R., Feely R.A., Ford D.J., Foster A., Gasser T., Gehlen M., Gkritzalis T., Grassi G., Gregor L., Gruber N., Gurses O., Harris I., Hefner M., Heinke J., Hurtt G.C., Iida Y., Ilyina T., Jacobson A.R., Jain A.K., Jarnikova T., Jersild A., Jiang F., Jin Z., Kato E., Keeling R.F., Goldewijk K.K., Knauer J., Korsbakken J.I., Lan X., Lauvset S.K., Lefevre N., Liu Z., Liu J., Ma L., Maksyutov S., Marland G., Mayot N., McGuire P.C., Metzl N., Monacci N.M., Morgan E.J., Nakaoka S., Neill C., Niwa Y., Nutzel T., Olivier L., Ono T., Palmer P.I., Pierrot D., Qin Z., Resplandy L., Roobaert A., Rosan T.M., Rodenbeck C., Schwinger J., Smallman T.L., Smith S.M., Sospedra-Alfonso R., Steinhoff T., Sun Q., Sutton A.J., Seferian R., Takao S., Tatebe H., Tian H., Tilbrook B., Torres O., Tourigny E., Tsujino H., Tubiello F., van der Werf G., Wanninkhof R., Wang X., Yang D., Yang X., Yu Z., Yuan W., Yue X., Zaehle S., Zeng N., Zeng J.
  Title : , Earth System Science Data, 17(3):965-1039 (2025)
• 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
  Global Methane Budget 2000-2020

  Presenter : Saunois M., Martinez A., Poulter B., Zhang Z., Raymond P. A., Regnier P., Canadell J.G., Jackson R.B., Patra P.K., Bousquet P., Ciais P., Dlugokencky E.J., Lan X., Allen G.H., Bastviken D., Beerling D.J., Belikov D.A., Blake D.R., Castaldi S., Crippa M., Deemer B.R., Dennison F., Etiope G., Gedney N., Hoglund-Isaksson L., Holgerson M.A., Hopcroft P.O., Hugelius G., Ito A., Jain A.K., Janardanan Achari R., Johnson M.S., Kleinen T., Krummel P.B., Lauerwald R., Li T., Liu X., McDonald K.C., Melton J.R., Muhle J., Muller J., Murguia-Flores F., Niwa Y., Noce S., Pan S., Parker R.J., Peng C., Ramonet M., Riley W. J., Rocher-Ros G., Rosentreter J.A., Sasakawa M., Segers A., Smith S.J., Stanley E.H., Thanwerdas J., Tian H., Tsuruta A., Tubiello F.N., Weber T.S., van der Werf G.R., Worthy D.E.J., Xi Y., Yoshida Y., Zhang W., Zheng B., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Earth System Science Data, 17(5):1873-1958 (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
  The Atmospheric Potential Oxygen forward Model Intercomparison Project (APO-MIP1): evaluating simulated atmospheric transport of air-sea gas exchange tracers and APO flux products

  Presenter : Jin Y., Stephens B.B., Long M.C., Chandra N., Chevallier F., Hooghiem J.J.D., Luijkx I.T., Maksyutov S., Morgan E.J., Niwa Y., Patra P.K., Rodenbeck C., Vance J.
  Title : , Geoscientific Model Development, 18:5937-5969 (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)
• Other Publications
  Greenhouse gas observations by GOSAT series

  Presenter : Ohyama H., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Someya Y., Saeki T., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Title : , Proceedings of SPIE, 13667(136670V): (2025)
• Original Paper
  Assessment of methane emissions from oil, gas and coal sectors across inventories and atmospheric inversions

  Presenter : Tibrew K., Ciais P., Saunois M., Martinez A., Lin X., Thanwerdas J., Deng Z., Chevallier F., Giron C., Albergel C., Tanaka K., Patra P., Tsuruta A., Zheng B., Belikov D., Niwa Y., Janardanan Achari R., Maksyutov S., Segers A., Tzompa-sosa Z., Bousquet P., Sciare J.
  Title : , Communications Earth & Environment, 5(26): (2024)
• Original Paper
  Permafrost Region Greenhouse Gas Budgets Suggest a Weak CO2 Sink and CH4 and N2O Sources, But Magnitudes Differ Between Top-Down and Bottom-Up Methods

  Presenter : Hugelius G., Ramage J., Burke E., Chatterjee A., Smallman T.L., Aalto T., Bastos A., Biasi C., Canadell J.G., Chandra N., Chevallier F., Ciais P., Chang J., Feng L., Jones M.W., Kleinen T., Kuhn M., Lauerwald R., Liu J., López‐Blanco E., Luijkx I.T., Marushchak M. E., Natali S.M., Niwa Y., Olefeldt D., Palmer P.I., Patra P.K., Peters W., Potter S., Poulter B., Rogers B.M., Riley W.J., Saunois M., Schuur E.A.G., Thompson R.L., Treat C., Tsuruta A., Turetsky M.R., Virkkala A.-M., Voigt C., Watts J., Zhu Q., Zheng B.
  Title : , Global Biogeochemical Cycles, 38: (2024)
• Original Paper
  The key role of forest disturbance in reconciling estimates of the northern carbon sink

  Presenter : O’Sullivan M., Sitch S., Friedlingstein P., Luijkx I.T., Peters W., Rosan T.M., Arneth A., Arora V.K., Chandra N., Chevallier F., Ciais P., Falk S., Feng L., Gasser T., Houghton R.A., Jain A.K., Kato E., Kennedy D., Knauer J., McGrath M.J., Niwa Y., Palmer P.I., Patra P.K., Pongratz J., Poulter B., Rodenbeck C., Schwingshackl C., Sun Q., Tian H., Walker A.P., Yang D., Yuan W., Yue X., Zaehle S.
  Title : , Communications Earth & Environment, 5(705): (2024)
• Original Paper
  Near-real-time estimation of fossil fuel CO2 emissions from China based on atmospheric observations on Hateruma and Yonaguni Islands, Japan

  Presenter : Tohjima Y., Niwa Y., Patra P.K., Mukai H., Machida T., Sasakawa M., Tsuboi K., Saito K., Ito A.
  Title : , Progress in Earth and Planetary Science (2023)
• Original Paper
  Intercomparison of Atmospheric Carbonyl Sulfide (TransCom-COS; Part One): Evaluating the Impact of Transport and Emissions on Tropospheric Variability Using Ground-Based and Aircraft Data

  Presenter : Remaud M., Ma J., Krol M., Abadie C., Cartwright M.P., Patra P.K., Niwa Y., Rodenbeck C., Belviso S., Kooijmans L., Lennartz S., Maignan F., Chevallier F., Chipperfield M. P., Pope R. J., Harrison J. J., Vimont I., Wilson C., Peylin P.
  Title : , Journal of Geophysical Research Atmosphere, 128: (2023)
• Original Paper
  Observational constraints reduce model spread but not uncertainty in global wetland methane emission estimates

  Presenter : Chang K.-Y., Riley W.J., Collier N., McNicol G., Fluet-Chouinard E., Knox S.H., Delwiche K.B., Jackson R.B., Poulter B., Saunois M., Chandra N., Gedney N., Ishizawa M., Ito A., Joos F., Kleinen T., Maggi F., McNorton J., Melton J.R., Miller P., Niwa Y., Pasut C., Patra P.K., Peng C., Peng S., Segers A., Tian H., Tsuruta A., Yao Y., Yin Y., Zhang W., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Global Change Biology, 29:4298-4312 (2023)
• Original Paper
  Intercomparison of Atmospheric Carbonyl Sulfide (TransCom-COS): 2. Evaluation of Optimized Fluxes Using Ground-Based and Aircraft Observations

  Presenter : Ma J., Remaud M., Peylin P., Patra P., Niwa Y., Rodenbeck C., Cartwright M., Harrison J.J., Chipperfield M.P., Pope R.J., Wilson C., Belviso S., Montzka S.A., Vimont I., Moore F., Atlas E.L., Schwartz E., Krol M.C.
  Title : , Journal of Geophysical Rsearch: Atmospheres, 128(e2023JD039198): (2023)
• Review
  Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview

  Presenter : Imasu R., Matsunaga T., Nakajima M., Yoshida Y., Shioki K., Morino I., Saitoh N., Niwa Y., Someya Y., Oishi Y., Hashimoto M., Noda H., Hikosaka K., Uchino O., Maksyutov S., Takagi H., Ishida H., Nakajima T.Y., Nakajima T., Shi C.
  Title : , Progress in Earth and Planetary Science, 10(1):33 (2023)
• Original Paper
  Global Carbon Budget 2023

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Bakker D.C.E., Hauck J., Landschutzer P., Quere C.L., Luijkx I.T., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson R.B., Alin S.R., Anthoni P., Barbero L., Bates N.R., Becker M., Bellouin N., Decharme B., Bopp L., Brasika I.B.M., Cadule P., Chamberlain M.A., Chandra N., Chau T.-T.-T., Chevallier F., Chini L.P., Cronin M., Dou X., Enyo K., Evans W., Falk S., Feely R.A., Feng L., Ford D.J., Gasser T., Ghattas J., Gkritzalis T., Grassi G., Gregor L., Gruber N., Gurses O., Harris I., Hefner M., Heinke J., Houghton R.A., Hurtt G.C., Iida Y., Ilyina T., Jacobson A.R., Jain A., Jarnikova T., Jersild A., Jiang F., Jin Z., Joos F., Kato E., Keeling R.F., Kennedy D., Goldewijk K.K., Knauer J., Korsbakken J.I., Kortzinger A., Lan X., Lefevre N., Li H., Liu J., Liu Z., Ma L., Marland G., Mayot N., McGuire P.C., McKinley G.A., Meyer G., Morgan E.J., Munro D.R., Nakaoka S., Niwa Y., O'Brien K.M., Olsen A., Omar A.M., Ono T., Paulsen M., Pierrot D., Pocock K., Poulter B., Powis C.M., Rehder G., Resplandy L., Robertson E., Rodenbeck C., Rosan T.M., Schwinger J., Seferian R., Smallman T.L., Smith S.M., Sospedra-Alfonso R., Sun Q., Sutton A.J., Sweeney C., Takao S., Tans P.P., Tian H., Tilbrook B., Tsujino H., Tubiello F., van der Werf G.R., van Ooijen E., Wanninkhof R., Watanabe M., Wimart-Rousseau C., Yang D., Yang X., Yuan W., Yue X., Zaehle S., Zeng J., Zheng B.
  Title : , Earth System Science Data, 15(12):5301-5369 (2023)
• Original Paper
  Understanding Temporal Variations of Atmospheric Radon-222 around Japan Using Model Simulations

  Presenter : Ishijima K., Tsuboi K., Matsueda H., Tanaka Y., Maki T., Nakamura T., Niwa Y., Hirao S.
  Title : , Journal of the Meteorological Society of Japan, 100(2):343-359 (2022)
• Other Publications
  Did Atmospheric CO2 and CH4 Observation at Yonagunijima Detect Fossil-Fuel CO2 Reduction due to COVID-19 Lockdown?

  Presenter : Tohjima Y., Niwa Y., Tsuboi K., Saito K.
  Title : , Journal of the Meteorological Society of Japan, 100(2):437-444 (2022)
• Original Paper
  Sensitivity of biomass burning emissions estimates to land surface information

  Presenter : Saito M., Shiraishi T., Hirata R., Niwa Y., Saito K., Steinbacher M., Worthy D., Matsunaga T.
  Title : , Biogeosciences, 19(7):2059-2078 (2022)
• Original Paper
  Global Carbon Budget 2021

  Presenter : Friedlingstein P., Jones M. W., O’Sullivan M., Andrew R. M., Bakker D. C. E., Hauck J., Le Quéré C., Peters G. P., Peters W., Pongratz J., Sitch S., Canadell J. G., Ciais P., Jackson R. B., Alin S. R., Anthoni P., Bates N. R., Becker M., Bellouin N., Bopp L., Chau T. T. T., Chevallier F., Chini L. P., Cronin M., Currie K. I., Decharme B., Djeutchouang L. M., Dou X., Evans W., Feely R. A., Feng L., Gasser T., Gilfillan D., Gkritzalis T., Grassi G., Gregor L. , Gruber N., Gürses Ö, Harris I., Houghton R. A., Hurtt G. C., Iida Y., Ilyina T., Luijkx I. T., Jain A., Jones S. D., Kato E., Kennedy D., Goldewijk K. K, Knauer J., Korsbakken J. I., Körtzinger A., Landschützer P., Lauvset S. K., Lefèvre N., Lienert S., Liu J., Marland G., MacGuire P. C., Melton J. R., Munro D. R., Nabel J. E. M. S., Nakaoka S., Niwa S., Ono T., Pierrot D., Poulter B., Rehder G., Resplandy L., Robertson E., Rödenbeck C., Rosan T. M., Schwinger J., Schwingshackl C., Séférian R., Sutton A. J., Sweeney C., Tauhua T., Tans P. P., Tian H., Tilbrook B., Tubiello F., van der Werf G. R., Vuichard N., Wada C., Wanninkhof R., Watson A. J., Willis D., Wiltshire A. J, Yuan W., Yue C., Zaehle S., Zeng J.
  Title : , Earth System Science Data, 14:1917-2005 (2022)
• Original Paper
  Toward a long-term atmospheric CO2 inversion for elucidating natural carbon fluxes: technical notes of NISMON-CO2 v2021.1

  Presenter : Niwa Y., Ishijima K., Ito A., Iida Y.
  Title : , Progress in Earth and Planetary Science, 9(42): (2022)
• Original Paper
  Are Land-Use Change Emissions in Southeast Asia Decreasing or Increasing?

  Presenter : Kondo M., Sitch S., Ciais P., Achard F., Kato E., Pongratz J., Houghton R.A., Canadell J.G., Patra P.K., Friedlingstein P., Li W., Anthoni P., Arneth A., Chevallier F., Ganzenmüller R., Harper A., Jain A.K., Koven C., Lienert S., Lombardozzi D., Maki T., Nabel J.E.M.S., Nakamura T., Niwa Y., Peylin P., Poulter B., Pugh T.A.M., Rödenbeck C., Saeki T., Stocker B., Viovy N., Wiltshire A., Zaehle S.
  Title : , Global Biogeochemical Cycles, 36(1):e2020GB006909 (2022)
• Original Paper
  Estimated regional CO2 flux and uncertainty based on an ensemble of atmospheric CO2 inversions

  Presenter : Chandra N., Patra P.K., Niwa Y., Ito A., Iida Y., Goto D., Morimoto S., Kondo M., Takigawa M., Hajima T., Watanabe M.
  Title : , Atmospheric Chemistry and Physics, 22(14):9215-9243 (2022)
• Review
  How quickly would we see the effects of changing greenhouse gas emissions?

  Presenter : Chandra N., Niwa Y.
  Title : , Frontiers for Young Minds, 10(695527): (2022)
• Original Paper
  Global Carbon Budget 2022

  Presenter : Friedlingstein P., O'Sullivan M., Jones W.M., Andrew M.R., Gregor L., Hauck J., Le Quere C., Luijkx I.T., Olsen A., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson B., Alin S.R., Alkama R., Arneth A., Arora V.K., Bates N.R., Becker M., Bellouin N., Bittig H.C., Bopp L., Chevallier F., Chini P., Cronin M., Evans W., Falk S., Feely R.A., Gasser T., Gehlen M., Gkritzalis T., Gloege L., Grassi G., Gruber N., Gurses O., Harris I., Hefner M., Houghton A., Hurtt G.C., Iida Y., Ilyina T., Jain A.K., Jersild A., Kadono K., Kato E., Kennedy D., Goldewijk K.K., Knauer J., Korsbakken J.I., Landschutzer P., Lefevre N., Lindsay K., Liu J., Liu Z., Marland G., Mayot N., McGrath M.J., Metzl N., Monacci N., Munro D.R., Nakaoka S., Niwa Y., O'Brien K., Ono T., Palmer P.I., Pan N., Pierrot D., Pocock K., Poulter B., Resplandy L., Robertson E., Rodenbeck C., Rodriguez C., Rosan T.M., Schwinger J., Seferian R., Shutler J.D., Skjelvan I., Steinhoff T., Sun Q., Sutton A.J., Sweeney C., Takao S., Tanhua T., Tans P.P., Tian X., Tian H., Tilbrook B., Tsujino H., Tubiello F., van der Werf G.R., Walker A.P., Wanninkhof R., Whitehead C., Wranne A., Wright R., Yuan W., Yue C., Yue X.Y., Zaehle S., Zeng J., Zheng B.
  Title : , Earth System Science Data, 14(11):4811-4900 (2022)
• Original Paper
  Estimation of fire-induced carbon emissions from Equatorial Asia in 2015 using in situ aircraft and ship observations

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
  Title : , Atmospheric Chemistry and Physics, 21:9455-9473 (2021)
• Original Paper
  Regional trends and drivers of the global methane budget

  Presenter : Stavert A.R., Saunois M., Canadell J.G., Poulter B., Jackson R.B., Regnier P., Lauerwald R., Raymond P.A., Allen G.H., Patra P.K., Bergamaschi P., Bousquet P., Naveen C., Ciais P., Gustafson A., Ishizawa M., Ito A., Kleinen T., Maksyutov S., McNorton J., Melton J.R., Müller J., Niwa Y., Peng S., Riley W.J., Segers A., Tian H., Tsuruta A., Yin Y., Zhang Z., Zheng B., Zhuang Q.
  Title : , Global Change Biology, 28:182-200 (2021)
• Original Paper
  Statistical characterization of urban CO2 emission signals observed by commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Oda T., Higuchi K., Sawa Y., Machida T., Niwa Y., Maksyutov S.
  Title : , Scientific Reports, 10(7963): (2020)
• Original Paper
  The Global Methane Budget 2000-2017

  Presenter : Saunois M., Stavert A.R., Poulter B., Bousquet P., Canadell J.G., Jackson R.B., Raymond P.A., Dlugokencky E.J., Houwelling S., Patra P.K., Ciais P., Arora V.K., Bastviken D., Bergamaschi P., Blake D.R., Brailsford G., Bruhwiler L., Carlson K.M., Carrol M., Castaldi S., Chandra N., Crevoisier C., Crill P.M., Covey K., Curry C.L., Etiope G., Frankenberg C., Gedney N., Hegglin M.I., Höglund-Isaksson L., Hugelius G., Ishizawa M., Ito A., Janssens-Maenhout G., Jensen K.M., Joos F., Kleinen T., Krummel P.B., Langenfelds R.L., Laruelle G.G., Liu L., Machida T., Maksyutov S., McDonald K.C., McNorton J., Miller P.A., Melton J.R., Morino I., Müller J., Murguia-Flores F., Naik V., Niwa Y., Noce S., O, Parker R.J., Peng C., Peng S., Peters G.P., Prigent C., Prinn R., Ramonet M., Regnier P., Riley W.J., Rosentreter J.A., Segers A., Simpson I.J., Shi H., Smith S.J., Steele L.P., Thornton B.F., Tian H., Tohjima Y., Tubiello F.N., Tsuruta A., Viovy N., Voulgarakis A., Weber T.S., van Weele M., van der Werf G.R., Weiss R.F., Worthy D., Wunch D., Yin Y., Yoshida Y., Zhang W., Zhang Z., Zhao Y., Zheng B., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Earth System Science Data, 12:1561-1623 (2020)
• Original Paper
  Estimation of CH4 emissions from the East Siberian Arctic Shelf based on atmospheric observations aboard the R/V Mirai during fall cruises from 2012 to 2017

  Presenter : Tohjima Y., Zeng J., Shirai T., Niwa Y., Ishidoya S., Taketani F., Sasano D., Kosugi N., Kameyama S., Takashima H., Nara H., Morimoto S.
  Title : , Polar Science (2020)
• Original Paper
  A conjugate BFGS method for accurate estimation of a posterior error covariance matrix in a linear inverse problem

  Presenter : Niwa Y., Fujii Y.
  Title : , Quarterly Journal of the Royal Meteorological Society (2020)
• Original Paper
  Detection of fossil-fuel CO2 plummet in China due to COVID-19 by observation at Hateruma

  Presenter : Tohjima Y., Patra P. K., Niwa Y., Mukai H., Sasakawa M., Machida T.
  Title : , Scientific Reports (2020)
• Original Paper
  Increasing anthropogenic methane emissions arise equally from agricultural and fossil fuel sources

  Presenter : Jackson R. B., Saunois M., Bousquet P., Canadell J. G., Poulter B., Stavert A. R., Bergamaschi P., Niwa Y., Segers A., Tsuruta A.
  Title : , Enrionmental Research Letters, 15(071002): (2020)
• Review
  Overview of Model Systems for Global Carbon Dioxide and Methane Flux Estimates Using GOSAT and GOSAT-2 Observations

  Presenter : Saito M., Niwa Y., Saeki T., Cong R., Miyauchi T.
  Title : , Journal of The Remote Sensing Society of Japan, 39(1):50-56 (2019)
• Original Paper
  Seasonal evaluation of tropospheric CO2 over the Asia-Pacific region observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Niwa Y., Machida T., Zhou L.
  Title : , Atmospheric Chemistry and Physics, 18:14851-14866 (2018)

• Global Carbon Budget 2025

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Bakker D.C.E., Hauck J., Landschutzer P., Le Quere C., Li H., Luijkx I.T., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S. , Canadell J.G., Ciais P., Aas K., Alin S.R., Anthoni P., Barbero L., Bates N.R., Bellouin N., Benoit-Cattin A., Berghoff C.F., Bernardello R., Bopp L., Brasika I.B.M., Chamberlain M.A., Chandra N., Chevallier F., Chini L.P., Collier N.O., Colligan T.H., Cronin M., Djeutchouang L., Dou X., Enright M.P., Enyo K., Erb M., Evans W., Feely R.A., Feng L., Ford D.J., Foster A., Fransner F., Gasser T., Gehlen M., Gkritzalis T., Goncalves De Souza J., Grassi G., Gregor L, Gruber N., Guenet B., Gurses O., Harrington K., Harris I., Heinke J., Hurtt G.C., Iida Y., Ilyina T., Ito A., Jacobson A.R., Jain A.K., Jarnikova T., Jersild A., Jiang F., Jones S.D., Kato E., Keeling R. F., Goldewijk K.K., Knauer J., Kong Y., Korsbakken J.I., Koven C., Kunimitsu T., Lan X., Liu J., Liu Z., Liu Z., Lo Monaco C., Ma L., Marland G., McGuire P.C., McKinley G.A., Melton J., Monacci N., Monier E., Morgan E.J., Munro D.R., Muller J.D., Nakaoka S., Raja Nayagam L., Niwa Y., Nutzel T., Olsen A., Omar A.M., Pan N., Pandey S., Pierrot D., Qin Z., Regnier P.A.G., Rehder G., Resplandy L., Roobaert A., Rosan T.M., Rodenbeck C., Schwinger J., Skjelvan I., Smallman T.L., Spada V., Sreeush M. G., Sun Q., Sutton A.J., Sweeney C., Swingedouw D., Seferian R., Takao S., Tatebe H., Tian H., Tian X., Tilbrook B., Tsujino H., Tubiello F., van Ooijen E., van der Werf G., van de Velde S.J., Walker A., Wanninkhof R., Yang X., Yuan W., Yue X., Zeng J.
  Title : , Earth System Science Data, 18(5):3211-3288 (2026)
• The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): Objectives, conceptual framework and scientific contributions

  Presenter : Tanimoto H., Matsunaga T., Someya Y., Fujinawa T., Ohyama H., Morino I., Yashiro H., Sugita T., Inomata S., Mueller A., Saeki T., Yoshida Y., Niwa Y., Saito M., Noda H., Yamashita Y., Ikeda K., Saigusa N., Machida T., Frey M., Lim H., Srivastava P., Jin Y., Shimizu A., Nishizawa T., Kanaya Y., Sekiya T., Patra P., Takigawa M., Bisht J., Kasai Y., Sato T.
  Title : , Progress in Earth and Planetary Science, 12(8): (2025)
• Global greenhouse gas reconciliation 2022

  Presenter : Deng Z., Ciais P., Hu L., Martinez A., Saunois M., Thompson R. L., Tibrewal K., Peters W., Byrne B., Grassi G., Palmer P., Luijkx I.T., Liu Z., Liu J., Fang X., Wang T., Tian H., Tanaka K., Bastos A., Stich S., Poulter B., Albergel C., Tsuruta A., Maksyutov S., Janardanan Achari R., Niwa Y., Zheng B., Thanwerdas J., Belikov D., Segers A., Chevallier F.
  Title : , Earth System Science Data, 17:1121-1152 (2025)
• Wildfires offset the increasing but spatially heterogeneous Arctic-boreal CO2 uptake

  Presenter : Virkkala A.-M., Rogers B.M., Watts J., Arndt K.A., Potter S., Boike J., Bret-Harte M.S., Burke E., Burrell A., Chae Namyi, Chatterjee A., Chevallier F., Christensen T.R., Commane R., Dolman H., Edgar C.W., Elberling B., Emmerton C.A., Euskirchen E.S., Feng L., Gockede M., Grelle A., Helbig M., Holl D., Jarveoja J., Karsanaev S.V., Kobayashi H., Kutzbach L., Liu J., Luijkx I.T., Lopez-Blanco E., Lunneberg K., Mammarella I., Marushchak M.E., Mastepanov M., Matsuura Y., Maximov T.C., Merbold L., Meyer G. , Nilsson M. B., Niwa Y., Oechel W., Palmer P.I., Park S.-J., Parmentier F.-J. W., Peichl M., Peters W., Petrov R., Quinton W., Rodenbeck C., Sachs T., Schulze C., Sonnentag O., Louis V.L., Tuittila E.-S., Ueyama M., Varlagin A., Zona D., Natali S.M.
  Title : , Nature Climate Change, 15:188-195 (2025)
• Global Carbon Budget 2024

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Hauck J., Landschutzer P., Quere C.L., Li H., Luijkx I.T., Olsen A., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson R.B., Alin S.R., Arneth A., Arora V., Bates N.R., Becker M., Bellouin N., Berghoff C.F., Bittig H.C., Bopp L., Cadule P., Campbell K., Chamberlain M.A., Chandra N., Chevallier F., Chini L.P., Colligan T., Decayeux J., Djeutchouang L.M., Dou X., Rojas C.D., Enyo K., Evans W., Fay A.R., Feely R.A., Ford D.J., Foster A., Gasser T., Gehlen M., Gkritzalis T., Grassi G., Gregor L., Gruber N., Gurses O., Harris I., Hefner M., Heinke J., Hurtt G.C., Iida Y., Ilyina T., Jacobson A.R., Jain A.K., Jarnikova T., Jersild A., Jiang F., Jin Z., Kato E., Keeling R.F., Goldewijk K.K., Knauer J., Korsbakken J.I., Lan X., Lauvset S.K., Lefevre N., Liu Z., Liu J., Ma L., Maksyutov S., Marland G., Mayot N., McGuire P.C., Metzl N., Monacci N.M., Morgan E.J., Nakaoka S., Neill C., Niwa Y., Nutzel T., Olivier L., Ono T., Palmer P.I., Pierrot D., Qin Z., Resplandy L., Roobaert A., Rosan T.M., Rodenbeck C., Schwinger J., Smallman T.L., Smith S.M., Sospedra-Alfonso R., Steinhoff T., Sun Q., Sutton A.J., Seferian R., Takao S., Tatebe H., Tian H., Tilbrook B., Torres O., Tourigny E., Tsujino H., Tubiello F., van der Werf G., Wanninkhof R., Wang X., Yang D., Yang X., Yu Z., Yuan W., Yue X., Zaehle S., Zeng N., Zeng J.
  Title : , Earth System Science Data, 17(3):965-1039 (2025)
• 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)
• Global Methane Budget 2000-2020

  Presenter : Saunois M., Martinez A., Poulter B., Zhang Z., Raymond P. A., Regnier P., Canadell J.G., Jackson R.B., Patra P.K., Bousquet P., Ciais P., Dlugokencky E.J., Lan X., Allen G.H., Bastviken D., Beerling D.J., Belikov D.A., Blake D.R., Castaldi S., Crippa M., Deemer B.R., Dennison F., Etiope G., Gedney N., Hoglund-Isaksson L., Holgerson M.A., Hopcroft P.O., Hugelius G., Ito A., Jain A.K., Janardanan Achari R., Johnson M.S., Kleinen T., Krummel P.B., Lauerwald R., Li T., Liu X., McDonald K.C., Melton J.R., Muhle J., Muller J., Murguia-Flores F., Niwa Y., Noce S., Pan S., Parker R.J., Peng C., Ramonet M., Riley W. J., Rocher-Ros G., Rosentreter J.A., Sasakawa M., Segers A., Smith S.J., Stanley E.H., Thanwerdas J., Tian H., Tsuruta A., Tubiello F.N., Weber T.S., van der Werf G.R., Worthy D.E.J., Xi Y., Yoshida Y., Zhang W., Zheng B., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Earth System Science Data, 17(5):1873-1958 (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)
• The Atmospheric Potential Oxygen forward Model Intercomparison Project (APO-MIP1): evaluating simulated atmospheric transport of air-sea gas exchange tracers and APO flux products

  Presenter : Jin Y., Stephens B.B., Long M.C., Chandra N., Chevallier F., Hooghiem J.J.D., Luijkx I.T., Maksyutov S., Morgan E.J., Niwa Y., Patra P.K., Rodenbeck C., Vance J.
  Title : , Geoscientific Model Development, 18:5937-5969 (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)
• Assessment of methane emissions from oil, gas and coal sectors across inventories and atmospheric inversions

  Presenter : Tibrew K., Ciais P., Saunois M., Martinez A., Lin X., Thanwerdas J., Deng Z., Chevallier F., Giron C., Albergel C., Tanaka K., Patra P., Tsuruta A., Zheng B., Belikov D., Niwa Y., Janardanan Achari R., Maksyutov S., Segers A., Tzompa-sosa Z., Bousquet P., Sciare J.
  Title : , Communications Earth & Environment, 5(26): (2024)
• Permafrost Region Greenhouse Gas Budgets Suggest a Weak CO2 Sink and CH4 and N2O Sources, But Magnitudes Differ Between Top-Down and Bottom-Up Methods

  Presenter : Hugelius G., Ramage J., Burke E., Chatterjee A., Smallman T.L., Aalto T., Bastos A., Biasi C., Canadell J.G., Chandra N., Chevallier F., Ciais P., Chang J., Feng L., Jones M.W., Kleinen T., Kuhn M., Lauerwald R., Liu J., López‐Blanco E., Luijkx I.T., Marushchak M. E., Natali S.M., Niwa Y., Olefeldt D., Palmer P.I., Patra P.K., Peters W., Potter S., Poulter B., Rogers B.M., Riley W.J., Saunois M., Schuur E.A.G., Thompson R.L., Treat C., Tsuruta A., Turetsky M.R., Virkkala A.-M., Voigt C., Watts J., Zhu Q., Zheng B.
  Title : , Global Biogeochemical Cycles, 38: (2024)
• The key role of forest disturbance in reconciling estimates of the northern carbon sink

  Presenter : O’Sullivan M., Sitch S., Friedlingstein P., Luijkx I.T., Peters W., Rosan T.M., Arneth A., Arora V.K., Chandra N., Chevallier F., Ciais P., Falk S., Feng L., Gasser T., Houghton R.A., Jain A.K., Kato E., Kennedy D., Knauer J., McGrath M.J., Niwa Y., Palmer P.I., Patra P.K., Pongratz J., Poulter B., Rodenbeck C., Schwingshackl C., Sun Q., Tian H., Walker A.P., Yang D., Yuan W., Yue X., Zaehle S.
  Title : , Communications Earth & Environment, 5(705): (2024)
• Near-real-time estimation of fossil fuel CO2 emissions from China based on atmospheric observations on Hateruma and Yonaguni Islands, Japan

  Presenter : Tohjima Y., Niwa Y., Patra P.K., Mukai H., Machida T., Sasakawa M., Tsuboi K., Saito K., Ito A.
  Title : , Progress in Earth and Planetary Science (2023)
• Intercomparison of Atmospheric Carbonyl Sulfide (TransCom-COS; Part One): Evaluating the Impact of Transport and Emissions on Tropospheric Variability Using Ground-Based and Aircraft Data

  Presenter : Remaud M., Ma J., Krol M., Abadie C., Cartwright M.P., Patra P.K., Niwa Y., Rodenbeck C., Belviso S., Kooijmans L., Lennartz S., Maignan F., Chevallier F., Chipperfield M. P., Pope R. J., Harrison J. J., Vimont I., Wilson C., Peylin P.
  Title : , Journal of Geophysical Research Atmosphere, 128: (2023)
• Observational constraints reduce model spread but not uncertainty in global wetland methane emission estimates

  Presenter : Chang K.-Y., Riley W.J., Collier N., McNicol G., Fluet-Chouinard E., Knox S.H., Delwiche K.B., Jackson R.B., Poulter B., Saunois M., Chandra N., Gedney N., Ishizawa M., Ito A., Joos F., Kleinen T., Maggi F., McNorton J., Melton J.R., Miller P., Niwa Y., Pasut C., Patra P.K., Peng C., Peng S., Segers A., Tian H., Tsuruta A., Yao Y., Yin Y., Zhang W., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Global Change Biology, 29:4298-4312 (2023)
• Intercomparison of Atmospheric Carbonyl Sulfide (TransCom-COS): 2. Evaluation of Optimized Fluxes Using Ground-Based and Aircraft Observations

  Presenter : Ma J., Remaud M., Peylin P., Patra P., Niwa Y., Rodenbeck C., Cartwright M., Harrison J.J., Chipperfield M.P., Pope R.J., Wilson C., Belviso S., Montzka S.A., Vimont I., Moore F., Atlas E.L., Schwartz E., Krol M.C.
  Title : , Journal of Geophysical Rsearch: Atmospheres, 128(e2023JD039198): (2023)
• Global Carbon Budget 2023

  Presenter : Friedlingstein P., O'Sullivan M., Jones M.W., Andrew R.M., Bakker D.C.E., Hauck J., Landschutzer P., Quere C.L., Luijkx I.T., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson R.B., Alin S.R., Anthoni P., Barbero L., Bates N.R., Becker M., Bellouin N., Decharme B., Bopp L., Brasika I.B.M., Cadule P., Chamberlain M.A., Chandra N., Chau T.-T.-T., Chevallier F., Chini L.P., Cronin M., Dou X., Enyo K., Evans W., Falk S., Feely R.A., Feng L., Ford D.J., Gasser T., Ghattas J., Gkritzalis T., Grassi G., Gregor L., Gruber N., Gurses O., Harris I., Hefner M., Heinke J., Houghton R.A., Hurtt G.C., Iida Y., Ilyina T., Jacobson A.R., Jain A., Jarnikova T., Jersild A., Jiang F., Jin Z., Joos F., Kato E., Keeling R.F., Kennedy D., Goldewijk K.K., Knauer J., Korsbakken J.I., Kortzinger A., Lan X., Lefevre N., Li H., Liu J., Liu Z., Ma L., Marland G., Mayot N., McGuire P.C., McKinley G.A., Meyer G., Morgan E.J., Munro D.R., Nakaoka S., Niwa Y., O'Brien K.M., Olsen A., Omar A.M., Ono T., Paulsen M., Pierrot D., Pocock K., Poulter B., Powis C.M., Rehder G., Resplandy L., Robertson E., Rodenbeck C., Rosan T.M., Schwinger J., Seferian R., Smallman T.L., Smith S.M., Sospedra-Alfonso R., Sun Q., Sutton A.J., Sweeney C., Takao S., Tans P.P., Tian H., Tilbrook B., Tsujino H., Tubiello F., van der Werf G.R., van Ooijen E., Wanninkhof R., Watanabe M., Wimart-Rousseau C., Yang D., Yang X., Yuan W., Yue X., Zaehle S., Zeng J., Zheng B.
  Title : , Earth System Science Data, 15(12):5301-5369 (2023)
• Understanding Temporal Variations of Atmospheric Radon-222 around Japan Using Model Simulations

  Presenter : Ishijima K., Tsuboi K., Matsueda H., Tanaka Y., Maki T., Nakamura T., Niwa Y., Hirao S.
  Title : , Journal of the Meteorological Society of Japan, 100(2):343-359 (2022)
• Sensitivity of biomass burning emissions estimates to land surface information

  Presenter : Saito M., Shiraishi T., Hirata R., Niwa Y., Saito K., Steinbacher M., Worthy D., Matsunaga T.
  Title : , Biogeosciences, 19(7):2059-2078 (2022)
• Global Carbon Budget 2021

  Presenter : Friedlingstein P., Jones M. W., O’Sullivan M., Andrew R. M., Bakker D. C. E., Hauck J., Le Quéré C., Peters G. P., Peters W., Pongratz J., Sitch S., Canadell J. G., Ciais P., Jackson R. B., Alin S. R., Anthoni P., Bates N. R., Becker M., Bellouin N., Bopp L., Chau T. T. T., Chevallier F., Chini L. P., Cronin M., Currie K. I., Decharme B., Djeutchouang L. M., Dou X., Evans W., Feely R. A., Feng L., Gasser T., Gilfillan D., Gkritzalis T., Grassi G., Gregor L. , Gruber N., Gürses Ö, Harris I., Houghton R. A., Hurtt G. C., Iida Y., Ilyina T., Luijkx I. T., Jain A., Jones S. D., Kato E., Kennedy D., Goldewijk K. K, Knauer J., Korsbakken J. I., Körtzinger A., Landschützer P., Lauvset S. K., Lefèvre N., Lienert S., Liu J., Marland G., MacGuire P. C., Melton J. R., Munro D. R., Nabel J. E. M. S., Nakaoka S., Niwa S., Ono T., Pierrot D., Poulter B., Rehder G., Resplandy L., Robertson E., Rödenbeck C., Rosan T. M., Schwinger J., Schwingshackl C., Séférian R., Sutton A. J., Sweeney C., Tauhua T., Tans P. P., Tian H., Tilbrook B., Tubiello F., van der Werf G. R., Vuichard N., Wada C., Wanninkhof R., Watson A. J., Willis D., Wiltshire A. J, Yuan W., Yue C., Zaehle S., Zeng J.
  Title : , Earth System Science Data, 14:1917-2005 (2022)
• Toward a long-term atmospheric CO2 inversion for elucidating natural carbon fluxes: technical notes of NISMON-CO2 v2021.1

  Presenter : Niwa Y., Ishijima K., Ito A., Iida Y.
  Title : , Progress in Earth and Planetary Science, 9(42): (2022)
• Are Land-Use Change Emissions in Southeast Asia Decreasing or Increasing?

  Presenter : Kondo M., Sitch S., Ciais P., Achard F., Kato E., Pongratz J., Houghton R.A., Canadell J.G., Patra P.K., Friedlingstein P., Li W., Anthoni P., Arneth A., Chevallier F., Ganzenmüller R., Harper A., Jain A.K., Koven C., Lienert S., Lombardozzi D., Maki T., Nabel J.E.M.S., Nakamura T., Niwa Y., Peylin P., Poulter B., Pugh T.A.M., Rödenbeck C., Saeki T., Stocker B., Viovy N., Wiltshire A., Zaehle S.
  Title : , Global Biogeochemical Cycles, 36(1):e2020GB006909 (2022)
• Estimated regional CO2 flux and uncertainty based on an ensemble of atmospheric CO2 inversions

  Presenter : Chandra N., Patra P.K., Niwa Y., Ito A., Iida Y., Goto D., Morimoto S., Kondo M., Takigawa M., Hajima T., Watanabe M.
  Title : , Atmospheric Chemistry and Physics, 22(14):9215-9243 (2022)
• Global Carbon Budget 2022

  Presenter : Friedlingstein P., O'Sullivan M., Jones W.M., Andrew M.R., Gregor L., Hauck J., Le Quere C., Luijkx I.T., Olsen A., Peters G.P., Peters W., Pongratz J., Schwingshackl C., Sitch S., Canadell J.G., Ciais P., Jackson B., Alin S.R., Alkama R., Arneth A., Arora V.K., Bates N.R., Becker M., Bellouin N., Bittig H.C., Bopp L., Chevallier F., Chini P., Cronin M., Evans W., Falk S., Feely R.A., Gasser T., Gehlen M., Gkritzalis T., Gloege L., Grassi G., Gruber N., Gurses O., Harris I., Hefner M., Houghton A., Hurtt G.C., Iida Y., Ilyina T., Jain A.K., Jersild A., Kadono K., Kato E., Kennedy D., Goldewijk K.K., Knauer J., Korsbakken J.I., Landschutzer P., Lefevre N., Lindsay K., Liu J., Liu Z., Marland G., Mayot N., McGrath M.J., Metzl N., Monacci N., Munro D.R., Nakaoka S., Niwa Y., O'Brien K., Ono T., Palmer P.I., Pan N., Pierrot D., Pocock K., Poulter B., Resplandy L., Robertson E., Rodenbeck C., Rodriguez C., Rosan T.M., Schwinger J., Seferian R., Shutler J.D., Skjelvan I., Steinhoff T., Sun Q., Sutton A.J., Sweeney C., Takao S., Tanhua T., Tans P.P., Tian X., Tian H., Tilbrook B., Tsujino H., Tubiello F., van der Werf G.R., Walker A.P., Wanninkhof R., Whitehead C., Wranne A., Wright R., Yuan W., Yue C., Yue X.Y., Zaehle S., Zeng J., Zheng B.
  Title : , Earth System Science Data, 14(11):4811-4900 (2022)
• Estimation of fire-induced carbon emissions from Equatorial Asia in 2015 using in situ aircraft and ship observations

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
  Title : , Atmospheric Chemistry and Physics, 21:9455-9473 (2021)
• Regional trends and drivers of the global methane budget

  Presenter : Stavert A.R., Saunois M., Canadell J.G., Poulter B., Jackson R.B., Regnier P., Lauerwald R., Raymond P.A., Allen G.H., Patra P.K., Bergamaschi P., Bousquet P., Naveen C., Ciais P., Gustafson A., Ishizawa M., Ito A., Kleinen T., Maksyutov S., McNorton J., Melton J.R., Müller J., Niwa Y., Peng S., Riley W.J., Segers A., Tian H., Tsuruta A., Yin Y., Zhang Z., Zheng B., Zhuang Q.
  Title : , Global Change Biology, 28:182-200 (2021)
• Statistical characterization of urban CO2 emission signals observed by commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Oda T., Higuchi K., Sawa Y., Machida T., Niwa Y., Maksyutov S.
  Title : , Scientific Reports, 10(7963): (2020)
• The Global Methane Budget 2000-2017

  Presenter : Saunois M., Stavert A.R., Poulter B., Bousquet P., Canadell J.G., Jackson R.B., Raymond P.A., Dlugokencky E.J., Houwelling S., Patra P.K., Ciais P., Arora V.K., Bastviken D., Bergamaschi P., Blake D.R., Brailsford G., Bruhwiler L., Carlson K.M., Carrol M., Castaldi S., Chandra N., Crevoisier C., Crill P.M., Covey K., Curry C.L., Etiope G., Frankenberg C., Gedney N., Hegglin M.I., Höglund-Isaksson L., Hugelius G., Ishizawa M., Ito A., Janssens-Maenhout G., Jensen K.M., Joos F., Kleinen T., Krummel P.B., Langenfelds R.L., Laruelle G.G., Liu L., Machida T., Maksyutov S., McDonald K.C., McNorton J., Miller P.A., Melton J.R., Morino I., Müller J., Murguia-Flores F., Naik V., Niwa Y., Noce S., O, Parker R.J., Peng C., Peng S., Peters G.P., Prigent C., Prinn R., Ramonet M., Regnier P., Riley W.J., Rosentreter J.A., Segers A., Simpson I.J., Shi H., Smith S.J., Steele L.P., Thornton B.F., Tian H., Tohjima Y., Tubiello F.N., Tsuruta A., Viovy N., Voulgarakis A., Weber T.S., van Weele M., van der Werf G.R., Weiss R.F., Worthy D., Wunch D., Yin Y., Yoshida Y., Zhang W., Zhang Z., Zhao Y., Zheng B., Zhu Q., Zhu Q., Zhuang Q.
  Title : , Earth System Science Data, 12:1561-1623 (2020)
• Estimation of CH4 emissions from the East Siberian Arctic Shelf based on atmospheric observations aboard the R/V Mirai during fall cruises from 2012 to 2017

  Presenter : Tohjima Y., Zeng J., Shirai T., Niwa Y., Ishidoya S., Taketani F., Sasano D., Kosugi N., Kameyama S., Takashima H., Nara H., Morimoto S.
  Title : , Polar Science (2020)
• A conjugate BFGS method for accurate estimation of a posterior error covariance matrix in a linear inverse problem

  Presenter : Niwa Y., Fujii Y.
  Title : , Quarterly Journal of the Royal Meteorological Society (2020)
• Detection of fossil-fuel CO2 plummet in China due to COVID-19 by observation at Hateruma

  Presenter : Tohjima Y., Patra P. K., Niwa Y., Mukai H., Sasakawa M., Machida T.
  Title : , Scientific Reports (2020)
• Increasing anthropogenic methane emissions arise equally from agricultural and fossil fuel sources

  Presenter : Jackson R. B., Saunois M., Bousquet P., Canadell J. G., Poulter B., Stavert A. R., Bergamaschi P., Niwa Y., Segers A., Tsuruta A.
  Title : , Enrionmental Research Letters, 15(071002): (2020)
• Seasonal evaluation of tropospheric CO2 over the Asia-Pacific region observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Niwa Y., Machida T., Zhou L.
  Title : , Atmospheric Chemistry and Physics, 18:14851-14866 (2018)

• Greenhouse gases Observing SATellite 2 (GOSAT-2): mission overview

  Presenter : Imasu R., Matsunaga T., Nakajima M., Yoshida Y., Shioki K., Morino I., Saitoh N., Niwa Y., Someya Y., Oishi Y., Hashimoto M., Noda H., Hikosaka K., Uchino O., Maksyutov S., Takagi H., Ishida H., Nakajima T.Y., Nakajima T., Shi C.
  Title : , Progress in Earth and Planetary Science, 10(1):33 (2023)
• How quickly would we see the effects of changing greenhouse gas emissions?

  Presenter : Chandra N., Niwa Y.
  Title : , Frontiers for Young Minds, 10(695527): (2022)
• Overview of Model Systems for Global Carbon Dioxide and Methane Flux Estimates Using GOSAT and GOSAT-2 Observations

  Presenter : Saito M., Niwa Y., Saeki T., Cong R., Miyauchi T.
  Title : , Journal of The Remote Sensing Society of Japan, 39(1):50-56 (2019)

• Did Atmospheric CO2 and CH4 Observation at Yonagunijima Detect Fossil-Fuel CO2 Reduction due to COVID-19 Lockdown?

  Presenter : Tohjima Y., Niwa Y., Tsuboi K., Saito K.
  Title : , Journal of the Meteorological Society of Japan, 100(2):437-444 (2022)
• Future Collaboration between the United States and Japan for Possible Development of a Japan GHG Center

  Presenter : Tanimoto H., Machida T., Shirai T., Niwa Y., Matsunaga T., Saeki T., Yashiro H., Saigusa N., Someya Y., Umezawa T., Kanaya Y., Patra P., Atsushi S., Sawa Y., Suda K., Kondo M., Ito A., Ochiai O., Suto H., Okano S., Ishihara H., Tsuboi K., Ohara K., Takatsuji S., Kawasaki T., Kavvada A., Lefer B., Boukabara S.A., Worden J., Wooldridge C., Kondragunta S., Su W.
  Title : , Bulletin of the American Meteorological Society, 106:E197-E203 (2025)
• Greenhouse gas observations by GOSAT series

  Presenter : Ohyama H., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Someya Y., Saeki T., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Title : , Proceedings of SPIE, 13667(136670V): (2025)

Research Result (Presentation)

• all
• Research Presentation
• Research Lecture

• Research Presentation
  GOSAT Series: 16 Years' Satellite Observation of CO2 and CH4 by GOSAT and GOSAT-2, and the Latest Status of GOSAT-GW

  Presenter : Saeki T., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Name of Society : Asia Oceania Geosciences Society (AOGS) 2025, 22nd Annual Meeting (2025)
  Name of Proceedings : -
• Research Presentation
  Global carbon dioxide and methane flux estimates based on GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Yoshida Y., Kamei A., Saeki T., Yashiro H., Matsunaga T.
  Name of Society : 21st International Workshop on Greenhouse Gas Measurements from Space (2025)
  Name of Proceedings : Abstracts
• Research Presentation
  Investigating anomalous growth of atmospheric CO2 in 2023–2024 using GOSAT XCO2-constrained inverse modeling

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : 21st International Workshop on Greenhouse Gas Measurements from space (IWGGMS-21) (2025)
  Name of Proceedings : -
• 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
  Development of a simple NOx emission estimation method using satellite observations and a chemistry-transport model

  Presenter : Yamashita Y., Niwa Y., Goto D., Yashiro H., Ikeda K., Uchida J., Saito M., Saeki T., Satoh M., Nagashima T., Liu G., Tanimoto H.
  Name of Society : IWGGMS-21 (2025)
  Name of Proceedings : -
• Research Presentation
  Global CO2 flux estimation using NISMON-CO2 and GOSAT for carbon cycle analysis improvement

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : European Geophysical Union (EGU) General Assembly 2025 (2025)
  Name of Proceedings : -
• Research Presentation
  Emission estimation of CO2 over major cities of Japan using NICAM and WRF-GHG

  Presenter : BISHT J., Niwa Y., Nakaoka S., Terao Y., Sasakawa M., Tanimoto H., Machida T.
  Name of Society : The 2025 Autumn Meeting of the Meteorological Society of Japan (2025)
  Name of Proceedings : 2025 年度秋季大会講演予稿集, P(359):590
• Research Presentation
  Inverse Modeling of 2023-24 CO2 surge using GOSAT XCO2 observations

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : Japan Meteorological Society Autumn meeting 2025 (2025)
  Name of Proceedings : 2025 年度秋季大会講演予稿集, B(360):186
• Research Presentation
  Estimation of NOx emission using satellite observations and a chemistry-transport model

  Presenter : Yamashita Y., Niwa Y., Goto D., Yashiro H., Ikeda K., Uchida J., Saito M., Saeki T., Satoh M., Nagashima T., Liu G., Tanimoto H.
  Name of Society : Symposium on High-Resolution Numerical Simulation of Atmospheric Environment between China and Japan (2025)
  Name of Proceedings : Abstracts
• Research Presentation
  Inverse analyses of atmospheric GHG using observation from multiple platforms

  Presenter : Niwa Y.
  Name of Society : Symposium on High-Resolution Numerical Simulation of Atmospheric Environment between China and Japan under JSPS-CAS seminar program (2025)
  Name of Proceedings : -
• Research Presentation
  Unveiling Multi-Scale Emissions and their sources in Japan: Results from First Continuous Cargo Ship observations of Greenhouse Gases and Air Pollutants

  Presenter : Srivastava P., Tanimoto H., Mueller A., Zeng J., Nakaoka S., Niwa Y., Nara H.
  Name of Society : iCACGP-IGAC 2024 (2024)
  Name of Proceedings : -
• Research Presentation
  GOSAT series: 15 years' satellite observation of CO2 and CH4 by GOSAT and GOSAT-2, and the preparation status of GOSAT-GW

  Presenter : Saeki T., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Research Presentation
  Monitoring megacity CO2 emissions using long-term atmospheric observations from commercial airliners

  Presenter : Fujita R., Machida T., Ishijima K., Niwa Y., Umezawa T., Matsueda H., Tsuboi K., Sasakawa M., Sawa Y., Oda T.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Research Presentation
  Carbon and hydrogen isotope ratios of methane in the upper troposhere/lowermost stratosphere(UT/LMS) observed by commercial airliners

  Presenter : Fujita R., Morimoto S., Machida T., Tsuboi K., Matsueda H., Ishijima K., Umezawa T., Niwa Y., Sasakawa M., Goto D., Inai Y., Aoki S., Nakazawa T.
  Name of Society : 22nd WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Tracers Measurement Techniques (GGMT-2024) (2024)
  Name of Proceedings : -
• 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
  The next stage of observation project for atmospheric greenhouse gases by commercial aircraft -CONTRAIL-

  Presenter : Machida T., Niwa Y., Tsu, Umezawa T., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Goto D., Murayama S., Morimoto S.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Research Presentation
  Development of an integrated modeling analysis system for inferring emissions of GHGs and SLCFs

  Presenter : Niwa Y., Goto D., Yashiro H., Yamashita Y., Ikeda K., Yamada K.
  Name of Society : The 1st NIES-IAP Young Scientists Symposium on Atmospheric Environment and Climate Change (2024)
  Name of Proceedings : -
• Research Lecture
  Development of a short-term prediction system for greenhouse gases and SLCFs in conjunction with GOSAT-GW and TANSO-3 observations

  Presenter : Yashiro H., Niwa Y., Goto D., Someya Y., Saeki T., Matsunaga T.
  Name of Society : The 1st NIES-IAP Young Scientists Symposium on Atmospheric Environment and Climate Change (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
  GOSAT Series and Climate Change Mitigation Policies

  Presenter : Matsunaga T., Tanimoto H., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Inomata S., Sugita T., Yashiro H., Saeki T., Fujinawa T., Mueller A.
  Name of Society : Japan Geoscience Union Meeting 2024 (2024)
  Name of Proceedings : 同予稿集
• Research Presentation
  Multi-observational estimation of regional and sectoral emission contributions to the persistent high growth rate of atmospheric CH4 for 2020–2022

  Presenter : Niwa Y., Tohjima Y., Terao Y., Saeki T., Ito A., Umezawa T., Yamada K., Sasakawa M., Machida T., Nakaoka S., Nara H., Tanimoto H., Mukai H., Yoshida Y., Morimoto S., Saito K., Tsuboi K., Sawa Y., Matsueda H., Ishijima K., Fujita R., Goto D., Lan X., Schuldt K., Heliasz M., Biermann T., Chmura L., Necki J., Xueref-Remy I.
  Name of Society : AGU Fall Meeting 2024 (2024)
  Name of Proceedings : -
• Research Presentation
  Characteristics and the causes of CO2 concentration variations in Minamitorishima

  Presenter : Hasegawa A., Imasu R., Ohashi M., Niwa Y., Ishidoya S., Tsuboi K.
  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
  Development of short-term prediction system for greenhouse gases and SLCFs linked with GOSAT-GW TANSO-3 observations

  Presenter : Yashiro H., Niwa Y., Goto D., Someya Y., Saeki T., Matsunaga T.
  Name of Society : 19th International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-19) (2023)
  Name of Proceedings : -
• 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
  Observation of global CO2 and CH4 by GOSAT series satellites and our efforts toward observation by GOSAT-GW

  Presenter : Yashiro H., Fujinawa T., Goto D., Ikeda K., Inomata S., Kamei A., Kawazoe F., Kikuchi S., Morino I., Murakami K., Niwa Y., Noda H., Ohyama H., Saeki T., Saito M., Someya Y., Sugita T., Tanimoto H., Yamashita Y., Yoshida Y., Zeng J., Matsunaga T.
  Name of Society : The Workshop on Observations within the Global Greenhouse Gas Watch (GGGW) (2023)
  Name of Proceedings : -
• Research Presentation
  Global CO2 and CH4 flux estimates based on GOSAT and GOSAT-2 satellite observations

  Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yashiro H., Yoshida Y., Maksyutov S., Matsunaga T.
  Name of Society : iLEAPS–OzFlux Joint Conference 2023 (2023)
  Name of Proceedings : -
• 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
  GOSAT-2 Observation in Southeastern Asia Over the Past Three Years: CO2, CH4, CO, and Aerosol

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Shiraishi T., Hirata R., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : International Workshop On Land Cover/Land Use Changes, Forestry, and Agriculture in South/Southeast Asia (2022)
  Name of Proceedings : -
• Research Presentation
  GOSAT and GOSAT-2 Level4 global surface flux estimates

  Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yoshida Y., Maksyutov S., Matsunaga T.
  Name of Society : the 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
  Name of Proceedings : -
• Research Presentation
  Current Status and Recent Topics on GOSAT and GOSAT-2 Standard Products and Other Data

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : The 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
  Name of Proceedings : -
• Research Presentation
  Recovery of CO2 emissions from China after COVID-19 lockdown estimated from the atmospheric observation at Yaeyama Islands

  Presenter : Tohjima Y., Niwa Y., Mukai H., Sasakawa M., Machida T., Patra P. K., Tsuboi K., Saito K.
  Name of Society : Japan Geoscience Union Meeting 2022 (2022)
  Name of Proceedings : -
• Research Presentation
  Multi-species inversion for better constraining Asian GHG emissions

  Presenter : Niwa Y.
  Name of Society : JpGU2022 (2022)
  Name of Proceedings : -
• Research Presentation
  Estimated regional CO2 flux and uncertainty based on an ensemble of atmospheric CO2 inversions

  Presenter : Chandra N., Patra P.K., Niwa Y., Ito A., Iida Y., Goto D., Morimoto S., Kondo M., Takigawa M., Hajima T., Watanabe M.
  Name of Society : JpGU2022 (2022)
  Name of Proceedings : -
• Research Presentation
  Global carbon dioxide flux estimates based on GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Saeki T., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Shiraishi T., Yoshida Y., Matsunaga T.
  Name of Society : AGU fall meeting 2022 (2022)
  Name of Proceedings : -
• Research Presentation
  Near-real-time estimation of fossil fuel CO2 emissions from China based on atmospheric observations at remote islands in Japan

  Presenter : Tohjima Y., Niwa Y., Patra P.K., Mukai H., Machida T., Sasakawa M., Tsuboi K., Saito K., Ito A.
  Name of Society : AGU Fall Meeting 2022 (2022)
  Name of Proceedings : -
• Research Presentation
  The CONTRAIL commercial airliner measurements during the ACCLIP campaign

  Presenter : Umezawa T., Machida T., Niwa Y., Matsueda H., Tsuboi K., Ishijima K., Fujita R.
  Name of Society : ACCLIP Science Team Meeting (2022)
  Name of Proceedings : -
• Research Presentation
  Toward multi-scale greenhouse gas monitoring system for supporting global stock take

  Presenter : Ito A., Saigusa N., Niwa Y., Hajima T.
  Name of Society : Asia Oceania Geosciences Society (AOGS) 2021 Annual Meeting (2021)
  Name of Proceedings : Abstracs
• Research Presentation
  Toward multi-scale greenhouse gas monitoring system for supporting the global stocktake

  Presenter : Ito A., Niwa Y., Hajima T., Saigusa N.
  Name of Society : JpGU Meeting 2021 (2021)
  Name of Proceedings : Abstracts
• Research Presentation
  The Status of GOSAT and GOSAT-2 Higher Level Products

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Ohyama H., Yashiro H., Someya Y., Niwa Y., Kamei A., Kawazoe F., Saeki T., Imasu R., Saito N., Nakajima T., Hashimoto M., Nakajima T.
  Name of Society : The 17th International Workshop on Greenhouse Gas Measurement from Space (2021)
  Name of Proceedings : -
• 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
  Changes in the atmospheric CO2/CH4 variability in the East Asian outflow region caused by plummet of fossil fuel-derived CO2 in China due to COVID-19 outbreak

  Presenter : Tohjima Y., Niwa Y., Mukai H., Sasakawa M., Machida T., Nakaoka S., Patra P. K.
  Name of Society : Japan Geoscience Union Meeting 2021 (2021)
  Name of Proceedings : -, ACG34-03
• Research Presentation
  Inverse analysis of atmospheric CO2 for elucidating seasonal and interannual variations of natural carbon fluxes

  Presenter : Niwa Y., Ito A., Iida Y.
  Name of Society : 日本地球惑星科学連合2021年大会 (2021)
  Name of Proceedings : Abstracts
• Research Presentation
  Asian methane outflow captured by the CONTRAIL flask air samplings

  Presenter : Niwa Y., Machida T., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Saito T.
  Name of Society : 日本地球惑星科学連合2021年大会 (2021)
  Name of Proceedings : Abstracts
• Research Presentation
  Inverse analysis of fire-induced carbon emission from Equatorial Asia in 2015 with CONTRAIL and NIES-VOS data

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
  Name of Society : EGU General Assembly 2021 (2021)
  Name of Proceedings : Abstracts
• Research Lecture
  Monitoring of GHG sinks & sources to contribute to the Global Stocktake: Challenges in Asia and Oceania

  Presenter : Saigusa N., Ito A., Niwa Y., Machida T., Matsunaga T., Tanimoto H.
  Name of Society : CoCO2 1st General Assembly (2021)
  Name of Proceedings : -
• 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
  Preliminaries for GOSAT-2 Level 4 Global Surface Fluxes

  Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Cong R., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
  Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Research Presentation
  Toward a long-term global inversion of atmospheric CO2 for elucidating seasonal and interannual variations of natural carbon fluxes

  Presenter : Niwa Y.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Research Presentation
  Seasonal variations in the atmospheric Ar/N2 ratio observed at ground-based stations in Japan and Antarctica and its application to an evaluation of the air-sea heat flux

  Presenter : Ishidoya S., Ishijima K., Sugawara S., Niwa Y., Tohjima Y., Goto D., Tsuboi K., Murayama S., Aoki N., Maki T., Tanaka T. Y., Nakamura T.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Research Presentation
  The CONTRAIL commercial aircraft monitoring CO2 emissions from cities

  Presenter : Umezawa T., Matsueda H., Oda T., Higuchi K., Sawa Y., Machida T., Niwa Y., Maksyutov S.
  Name of Society : GML Virtual Global Monitoring Annual Conference 2020 (2020)
  Name of Proceedings : Abstracts
• Research Presentation
  Recent stagnation of CH4 emission growth from East Asia based on the analysis of synoptic variations of atmospheric CH4 and CO2 observed at Hateruma Island

  Presenter : Tohjima Y., Zeng J., Ito A., Naveen C., Niwa Y., Mukai H., Shirai T., Sasakawa M., Patra P. K., Machida T.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -, AAS07-P02
• 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 Presentation
  Global Surface CO2 Flux estimates using GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
  Name of Society : AGU Fall meeting (2020)
• Research Presentation
  Statistical characterization of atmospheric CO2 in airport proximity from the CONTRAIL commercial aircraft measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Machida T., Niwa Y., Higuchi K., Oda T., Maksyutov S.
  Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2019)
  Name of Proceedings : Abstracts
• Research Presentation
  Recent progress of GOSAT and GOSAT-2 SWIR L2 products

  Presenter : Yoshida Y., Oshio H., Someya Y., Ohyama H., Kamei A., Morino I., Uchino O., Saeki T., Niwa Y., Saito M., Noda H., Matsunaga T.
  Name of Society : The 15th International Workshop on Greenhouse Gas Measurements from Space (2019)
  Name of Proceedings : Abstract Collection, 19
• Research Presentation
  Transport pathways of high CH4 events observed over the western North Pacific

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : 8th International Symposium on Non-CO2 Greenhouse Gases (NCGG8) (2019)
  Name of Proceedings : -
• Research Presentation
  Asian summer monsoon signatures observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Machida T., Matsueda H., Sawa Y., Niwa Y.
  Name of Society : 4th Atmospheric Composition and Asian Monsoon Workshop (2019)
  Name of Proceedings : -
• Research Presentation
  Carbon flux estimation using NICAM-TM 4D-Var and GOSAT data towards GOSAT-2 Level 4 product

  Presenter : Saeki T., Niwa Y., Saito M.
  Name of Society : JpGU Meeting 2019 (2019)
  Name of Proceedings : Abstracts
• Research Presentation
  Accurate estimation of posterior error covariance in a 4D-Var inverse analysis

  Presenter : Niwa Y., Fujii Y.
  Name of Society : 日本地球惑星科学連合2019年大会 (2019)
  Name of Proceedings : -
• 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
  Fire-induced CO2 emission in Equatorial Asia during the 2015 drought estimated by aircraft and ship observations

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H.
  Name of Society : AGU Fall Meeting 2019 (2019)
  Name of Proceedings : -
• Research Presentation
  Recent progress of SWIR L2 products of GOSAT and GOSAT-2

  Presenter : Yoshida Y., Oshio H., Someya Y., Ohyama H., Kamei A., Morino I., Uchino O., Saeki T., Niwa Y., Saito M., Noda H., Matsunaga T.
  Name of Society : 2019 AGU Fall Meeting (2019)
  Name of Proceedings : -
• Research Presentation
  Early Results of GOSAT-2 Level 2 Products

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Niwa Y., Yashiro H., Kamei A., Kawazoe F., Saeki T., Ishihara Y., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : American Geophysical Union Fall Meeting 2019 (2019)
  Name of Proceedings : Abstracts
• Research Presentation
  A global carbon cycle model system for the GOSAT-2 project

  Presenter : Saito M., Niwa Y., Goto D., Saeki T., Murakami K., Cong R., Miyauchi T., Shiraishi T., Hirata R., Yoshida Y., Matsunaga T.
  Name of Society : AsiaFlux2019 (2019)
  Name of Proceedings : Abstracts, 166
• Research Presentation
  New BFGS-based methods to accurately estimate a posterior error covariance matrix

  Presenter : Niwa Y., Fujii Y.
  Name of Society : IG3IS/TRANSCOM workshop on inverse modelling of greenhouse gas fluxes from atmosphere observations (2018)
  Name of Proceedings : Abstracts
• Inverse modeling with aircraft observations for constraining CO2 flux estimates in Asia

  Presenter : Niwa Y.
  Name of Society : Asia Oceania Geosciences Society 15th Annual Meeting (2018)
  Name of Proceedings : Abstracts
• Research Presentation
  Adjoint analysis on high CH4 mole fractions observed by aircraft

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : Asia Oceania Geosciences Society 15th Annual Meeting (2018)
  Name of Proceedings : Abstracts
• Research Presentation
  Forward and backward model analyses on high CH4 events observed over the western North Pacific

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : Japan Geoscience Union Meeting 2018 (2018)
  Name of Proceedings : Abstracts
• Research Presentation
  Climatological variations of tropospheric CO2 over the Asia-Pacific region observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Niwa Y., Machida T., Zhou L.
  Name of Society : EGU General Assembly 2018 (2018)
  Name of Proceedings : Abstracts

• GOSAT Series: 16 Years' Satellite Observation of CO2 and CH4 by GOSAT and GOSAT-2, and the Latest Status of GOSAT-GW

  Presenter : Saeki T., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Name of Society : Asia Oceania Geosciences Society (AOGS) 2025, 22nd Annual Meeting (2025)
  Name of Proceedings : -
• Investigating anomalous growth of atmospheric CO2 in 2023–2024 using GOSAT XCO2-constrained inverse modeling

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : 21st International Workshop on Greenhouse Gas Measurements from space (IWGGMS-21) (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
• Inverse Modeling of 2023-24 CO2 surge using GOSAT XCO2 observations

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : Japan Meteorological Society Autumn meeting 2025 (2025)
  Name of Proceedings : 2025 年度秋季大会講演予稿集, B(360):186
• Estimation of NOx emission using satellite observations and a chemistry-transport model

  Presenter : Yamashita Y., Niwa Y., Goto D., Yashiro H., Ikeda K., Uchida J., Saito M., Saeki T., Satoh M., Nagashima T., Liu G., Tanimoto H.
  Name of Society : Symposium on High-Resolution Numerical Simulation of Atmospheric Environment between China and Japan (2025)
  Name of Proceedings : Abstracts
• Inverse analyses of atmospheric GHG using observation from multiple platforms

  Presenter : Niwa Y.
  Name of Society : Symposium on High-Resolution Numerical Simulation of Atmospheric Environment between China and Japan under JSPS-CAS seminar program (2025)
  Name of Proceedings : -
• GOSAT series: 15 years' satellite observation of CO2 and CH4 by GOSAT and GOSAT-2, and the preparation status of GOSAT-GW

  Presenter : Saeki T., Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Yashiro H., Tanimoto H., Sugita T., Fujinawa T., Inomata S., Mueller A.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Monitoring megacity CO2 emissions using long-term atmospheric observations from commercial airliners

  Presenter : Fujita R., Machida T., Ishijima K., Niwa Y., Umezawa T., Matsueda H., Tsuboi K., Sasakawa M., Sawa Y., Oda T.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Carbon and hydrogen isotope ratios of methane in the upper troposhere/lowermost stratosphere(UT/LMS) observed by commercial airliners

  Presenter : Fujita R., Morimoto S., Machida T., Tsuboi K., Matsueda H., Ishijima K., Umezawa T., Niwa Y., Sasakawa M., Goto D., Inai Y., Aoki S., Nakazawa T.
  Name of Society : 22nd WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Tracers Measurement Techniques (GGMT-2024) (2024)
  Name of Proceedings : -
• 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 : -
• The next stage of observation project for atmospheric greenhouse gases by commercial aircraft -CONTRAIL-

  Presenter : Machida T., Niwa Y., Tsu, Umezawa T., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Goto D., Murayama S., Morimoto S.
  Name of Society : 11th International Carbon Dioxide Conference (2024)
  Name of Proceedings : -
• Development of an integrated modeling analysis system for inferring emissions of GHGs and SLCFs

  Presenter : Niwa Y., Goto D., Yashiro H., Yamashita Y., Ikeda K., Yamada K.
  Name of Society : The 1st NIES-IAP Young Scientists Symposium on Atmospheric Environment and Climate Change (2024)
  Name of Proceedings : -
• GOSAT Series and Climate Change Mitigation Policies

  Presenter : Matsunaga T., Tanimoto H., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Someya Y., Niwa Y., Inomata S., Sugita T., Yashiro H., Saeki T., Fujinawa T., Mueller A.
  Name of Society : Japan Geoscience Union Meeting 2024 (2024)
  Name of Proceedings : 同予稿集
• 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 : -
• Global CO2 and CH4 flux estimates based on GOSAT and GOSAT-2 satellite observations

  Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yashiro H., Yoshida Y., Maksyutov S., Matsunaga T.
  Name of Society : iLEAPS–OzFlux Joint Conference 2023 (2023)
  Name of Proceedings : -
• GOSAT-2 Observation in Southeastern Asia Over the Past Three Years: CO2, CH4, CO, and Aerosol

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Shiraishi T., Hirata R., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : International Workshop On Land Cover/Land Use Changes, Forestry, and Agriculture in South/Southeast Asia (2022)
  Name of Proceedings : -
• GOSAT and GOSAT-2 Level4 global surface flux estimates

  Presenter : Saito M., Niwa Y., Takagi H., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Saeki T., Shiraishi T., Yoshida Y., Maksyutov S., Matsunaga T.
  Name of Society : the 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
  Name of Proceedings : -
• Current Status and Recent Topics on GOSAT and GOSAT-2 Standard Products and Other Data

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Yashiro H., Someya Y., Saeki T., Niwa Y., Kamei A., Kawazoe F., Zeng J., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : The 18th International Workshop on Greenhouse Gas Measurements from Space (2022)
  Name of Proceedings : -
• Estimated regional CO2 flux and uncertainty based on an ensemble of atmospheric CO2 inversions

  Presenter : Chandra N., Patra P.K., Niwa Y., Ito A., Iida Y., Goto D., Morimoto S., Kondo M., Takigawa M., Hajima T., Watanabe M.
  Name of Society : JpGU2022 (2022)
  Name of Proceedings : -
• Global carbon dioxide flux estimates based on GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Saeki T., Hirata R., Kamei A., Miyauchi T., Morino I., Murakami K., Shiraishi T., Yoshida Y., Matsunaga T.
  Name of Society : AGU fall meeting 2022 (2022)
  Name of Proceedings : -
• The CONTRAIL commercial airliner measurements during the ACCLIP campaign

  Presenter : Umezawa T., Machida T., Niwa Y., Matsueda H., Tsuboi K., Ishijima K., Fujita R.
  Name of Society : ACCLIP Science Team Meeting (2022)
  Name of Proceedings : -
• Toward multi-scale greenhouse gas monitoring system for supporting global stock take

  Presenter : Ito A., Saigusa N., Niwa Y., Hajima T.
  Name of Society : Asia Oceania Geosciences Society (AOGS) 2021 Annual Meeting (2021)
  Name of Proceedings : Abstracs
• Toward multi-scale greenhouse gas monitoring system for supporting the global stocktake

  Presenter : Ito A., Niwa Y., Hajima T., Saigusa N.
  Name of Society : JpGU Meeting 2021 (2021)
  Name of Proceedings : Abstracts
• The Status of GOSAT and GOSAT-2 Higher Level Products

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Ohyama H., Yashiro H., Someya Y., Niwa Y., Kamei A., Kawazoe F., Saeki T., Imasu R., Saito N., Nakajima T., Hashimoto M., Nakajima T.
  Name of Society : The 17th International Workshop on Greenhouse Gas Measurement from Space (2021)
  Name of Proceedings : -
• Changes in the atmospheric CO2/CH4 variability in the East Asian outflow region caused by plummet of fossil fuel-derived CO2 in China due to COVID-19 outbreak

  Presenter : Tohjima Y., Niwa Y., Mukai H., Sasakawa M., Machida T., Nakaoka S., Patra P. K.
  Name of Society : Japan Geoscience Union Meeting 2021 (2021)
  Name of Proceedings : -, ACG34-03
• Inverse analysis of atmospheric CO2 for elucidating seasonal and interannual variations of natural carbon fluxes

  Presenter : Niwa Y., Ito A., Iida Y.
  Name of Society : 日本地球惑星科学連合2021年大会 (2021)
  Name of Proceedings : Abstracts
• The CONTRAIL commercial aircraft monitoring CO2 emissions from cities

  Presenter : Umezawa T., Matsueda H., Oda T., Higuchi K., Sawa Y., Machida T., Niwa Y., Maksyutov S.
  Name of Society : GML Virtual Global Monitoring Annual Conference 2020 (2020)
  Name of Proceedings : Abstracts
• Statistical characterization of atmospheric CO2 in airport proximity from the CONTRAIL commercial aircraft measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Machida T., Niwa Y., Higuchi K., Oda T., Maksyutov S.
  Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2019)
  Name of Proceedings : Abstracts
• Recent progress of GOSAT and GOSAT-2 SWIR L2 products

  Presenter : Yoshida Y., Oshio H., Someya Y., Ohyama H., Kamei A., Morino I., Uchino O., Saeki T., Niwa Y., Saito M., Noda H., Matsunaga T.
  Name of Society : The 15th International Workshop on Greenhouse Gas Measurements from Space (2019)
  Name of Proceedings : Abstract Collection, 19
• Transport pathways of high CH4 events observed over the western North Pacific

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : 8th International Symposium on Non-CO2 Greenhouse Gases (NCGG8) (2019)
  Name of Proceedings : -
• Carbon flux estimation using NICAM-TM 4D-Var and GOSAT data towards GOSAT-2 Level 4 product

  Presenter : Saeki T., Niwa Y., Saito M.
  Name of Society : JpGU Meeting 2019 (2019)
  Name of Proceedings : Abstracts
• Early Results of GOSAT-2 Level 2 Products

  Presenter : Matsunaga T., Morino I., Yoshida Y., Saito M., Noda H., Ohyama H., Niwa Y., Yashiro H., Kamei A., Kawazoe F., Saeki T., Ishihara Y., Imasu R., Nakajima T., Nakajima T., Saitoh N., Hashimoto M.
  Name of Society : American Geophysical Union Fall Meeting 2019 (2019)
  Name of Proceedings : Abstracts
• New BFGS-based methods to accurately estimate a posterior error covariance matrix

  Presenter : Niwa Y., Fujii Y.
  Name of Society : IG3IS/TRANSCOM workshop on inverse modelling of greenhouse gas fluxes from atmosphere observations (2018)
  Name of Proceedings : Abstracts
• Climatological variations of tropospheric CO2 over the Asia-Pacific region observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Matsueda H., Sawa Y., Niwa Y., Machida T., Zhou L.
  Name of Society : EGU General Assembly 2018 (2018)
  Name of Proceedings : Abstracts
• Global carbon dioxide and methane flux estimates based on GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Yoshida Y., Kamei A., Saeki T., Yashiro H., Matsunaga T.
  Name of Society : 21st International Workshop on Greenhouse Gas Measurements from Space (2025)
  Name of Proceedings : Abstracts
• Development of a simple NOx emission estimation method using satellite observations and a chemistry-transport model

  Presenter : Yamashita Y., Niwa Y., Goto D., Yashiro H., Ikeda K., Uchida J., Saito M., Saeki T., Satoh M., Nagashima T., Liu G., Tanimoto H.
  Name of Society : IWGGMS-21 (2025)
  Name of Proceedings : -
• Global CO2 flux estimation using NISMON-CO2 and GOSAT for carbon cycle analysis improvement

  Presenter : MAITY S., Niwa Y., Saeki T., Someya Y., Yoshida Y.
  Name of Society : European Geophysical Union (EGU) General Assembly 2025 (2025)
  Name of Proceedings : -
• Emission estimation of CO2 over major cities of Japan using NICAM and WRF-GHG

  Presenter : BISHT J., Niwa Y., Nakaoka S., Terao Y., Sasakawa M., Tanimoto H., Machida T.
  Name of Society : The 2025 Autumn Meeting of the Meteorological Society of Japan (2025)
  Name of Proceedings : 2025 年度秋季大会講演予稿集, P(359):590
• Unveiling Multi-Scale Emissions and their sources in Japan: Results from First Continuous Cargo Ship observations of Greenhouse Gases and Air Pollutants

  Presenter : Srivastava P., Tanimoto H., Mueller A., Zeng J., Nakaoka S., Niwa Y., Nara H.
  Name of Society : iCACGP-IGAC 2024 (2024)
  Name of Proceedings : -
• 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 : -
• Characteristics and the causes of CO2 concentration variations in Minamitorishima

  Presenter : Hasegawa A., Imasu R., Ohashi M., Niwa Y., Ishidoya S., Tsuboi K.
  Name of Society : AGU Fall Meeting 2024 (2024)
  Name of Proceedings : -
• Development of short-term prediction system for greenhouse gases and SLCFs linked with GOSAT-GW TANSO-3 observations

  Presenter : Yashiro H., Niwa Y., Goto D., Someya Y., Saeki T., Matsunaga T.
  Name of Society : 19th International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-19) (2023)
  Name of Proceedings : -
• Observation of global CO2 and CH4 by GOSAT series satellites and our efforts toward observation by GOSAT-GW

  Presenter : Yashiro H., Fujinawa T., Goto D., Ikeda K., Inomata S., Kamei A., Kawazoe F., Kikuchi S., Morino I., Murakami K., Niwa Y., Noda H., Ohyama H., Saeki T., Saito M., Someya Y., Sugita T., Tanimoto H., Yamashita Y., Yoshida Y., Zeng J., Matsunaga T.
  Name of Society : The Workshop on Observations within the Global Greenhouse Gas Watch (GGGW) (2023)
  Name of Proceedings : -
• Observation activities for atmospheric greenhouse gases by CONTRAIL and other platforms by NIES and collaborators

  Presenter : Machida T., Niwa Y., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Sasakawa M., Terao Y., Tohjima Y., Nara H., Saito T., Nakaoka S., Takao S., Aramaki T., Takahashi Y., Hirata R., Mueller A., Srivastava P., Morino I., Ohyama H., Frey M., Noda H., Mukai H., Shirai T., Tanimoto H.
  Name of Society : WMO International Greenhouse Gas Monitoring Symposium (2023)
  Name of Proceedings : -
• Recovery of CO2 emissions from China after COVID-19 lockdown estimated from the atmospheric observation at Yaeyama Islands

  Presenter : Tohjima Y., Niwa Y., Mukai H., Sasakawa M., Machida T., Patra P. K., Tsuboi K., Saito K.
  Name of Society : Japan Geoscience Union Meeting 2022 (2022)
  Name of Proceedings : -
• Multi-species inversion for better constraining Asian GHG emissions

  Presenter : Niwa Y.
  Name of Society : JpGU2022 (2022)
  Name of Proceedings : -
• Near-real-time estimation of fossil fuel CO2 emissions from China based on atmospheric observations at remote islands in Japan

  Presenter : Tohjima Y., Niwa Y., Patra P.K., Mukai H., Machida T., Sasakawa M., Tsuboi K., Saito K., Ito A.
  Name of Society : AGU Fall Meeting 2022 (2022)
  Name of Proceedings : -
• Asian methane outflow captured by the CONTRAIL flask air samplings

  Presenter : Niwa Y., Machida T., Umezawa T., Tsuboi K., Ishijima K., Fujita R., Matsueda H., Saito T.
  Name of Society : 日本地球惑星科学連合2021年大会 (2021)
  Name of Proceedings : Abstracts
• Inverse analysis of fire-induced carbon emission from Equatorial Asia in 2015 with CONTRAIL and NIES-VOS data

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H., Tohjima Y.
  Name of Society : EGU General Assembly 2021 (2021)
  Name of Proceedings : Abstracts
• Preliminaries for GOSAT-2 Level 4 Global Surface Fluxes

  Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Cong R., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
  Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Toward a long-term global inversion of atmospheric CO2 for elucidating seasonal and interannual variations of natural carbon fluxes

  Presenter : Niwa Y.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Seasonal variations in the atmospheric Ar/N2 ratio observed at ground-based stations in Japan and Antarctica and its application to an evaluation of the air-sea heat flux

  Presenter : Ishidoya S., Ishijima K., Sugawara S., Niwa Y., Tohjima Y., Goto D., Tsuboi K., Murayama S., Aoki N., Maki T., Tanaka T. Y., Nakamura T.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -
• Recent stagnation of CH4 emission growth from East Asia based on the analysis of synoptic variations of atmospheric CH4 and CO2 observed at Hateruma Island

  Presenter : Tohjima Y., Zeng J., Ito A., Naveen C., Niwa Y., Mukai H., Shirai T., Sasakawa M., Patra P. K., Machida T.
  Name of Society : JpGU-AGU Joint Meeting 2020 (2020)
  Name of Proceedings : -, AAS07-P02
• 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
• Global Surface CO2 Flux estimates using GOSAT-2 observations

  Presenter : Saito M., Niwa Y., Saeki T., Murakami K., Miyauchi T., Yashiro H., Shiraishi T., Hirata R., Yoshida Y., Morino I., Noda H., Ohyama H., Kamei A., Matsunaga T.
  Name of Society : AGU Fall meeting (2020)
• Asian summer monsoon signatures observed by the CONTRAIL commercial airliner measurements

  Presenter : Umezawa T., Machida T., Matsueda H., Sawa Y., Niwa Y.
  Name of Society : 4th Atmospheric Composition and Asian Monsoon Workshop (2019)
  Name of Proceedings : -
• Accurate estimation of posterior error covariance in a 4D-Var inverse analysis

  Presenter : Niwa Y., Fujii Y.
  Name of Society : 日本地球惑星科学連合2019年大会 (2019)
  Name of Proceedings : -
• 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 : -
• Fire-induced CO2 emission in Equatorial Asia during the 2015 drought estimated by aircraft and ship observations

  Presenter : Niwa Y., Sawa Y., Nara H., Machida T., Matsueda H., Umezawa T., Ito A., Nakaoka S., Tanimoto H.
  Name of Society : AGU Fall Meeting 2019 (2019)
  Name of Proceedings : -
• Recent progress of SWIR L2 products of GOSAT and GOSAT-2

  Presenter : Yoshida Y., Oshio H., Someya Y., Ohyama H., Kamei A., Morino I., Uchino O., Saeki T., Niwa Y., Saito M., Noda H., Matsunaga T.
  Name of Society : 2019 AGU Fall Meeting (2019)
  Name of Proceedings : -
• A global carbon cycle model system for the GOSAT-2 project

  Presenter : Saito M., Niwa Y., Goto D., Saeki T., Murakami K., Cong R., Miyauchi T., Shiraishi T., Hirata R., Yoshida Y., Matsunaga T.
  Name of Society : AsiaFlux2019 (2019)
  Name of Proceedings : Abstracts, 166
• Adjoint analysis on high CH4 mole fractions observed by aircraft

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : Asia Oceania Geosciences Society 15th Annual Meeting (2018)
  Name of Proceedings : Abstracts
• Forward and backward model analyses on high CH4 events observed over the western North Pacific

  Presenter : Niwa Y., Machida T., Sawa Y., Umezawa T., Tsuboi K., Saito K., Matsueda H., Saigusa N.
  Name of Society : Japan Geoscience Union Meeting 2018 (2018)
  Name of Proceedings : Abstracts

• 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 of GHG sinks & sources to contribute to the Global Stocktake: Challenges in Asia and Oceania

  Presenter : Saigusa N., Ito A., Niwa Y., Machida T., Matsunaga T., Tanimoto H.
  Name of Society : CoCO2 1st General Assembly (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)
• Development of a short-term prediction system for greenhouse gases and SLCFs in conjunction with GOSAT-GW and TANSO-3 observations

  Presenter : Yashiro H., Niwa Y., Goto D., Someya Y., Saeki T., Matsunaga T.
  Name of Society : The 1st NIES-IAP Young Scientists Symposium on Atmospheric Environment and Climate Change (2024)
  Name of Proceedings : -

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