UMEZAWA Taku

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)

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)

Presenter : Oyabu I., Kawamura K., Kitamura K., Sugawara S., Ishidoya S., Umezawa T., Saito T., Goto D., Fujita R., Morimoto S., Aoki S., Motoyama H.
Title : , Polar Data Journal, 9:30-43 (2025)

Presenter : Umezawa T., Sugawara S., Hikichi S., Morimoto S., Saito T., Krummel P.B., Fraser P.J., Weiss R.F.
Title : , SOLA, 21:237-243 (2025)

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)

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

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

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

Presenter : Dasgupta B., Menoud M., van der Veen C., Levin I., Veidt C., Moossen H., Michel S.E., Sperlich P., Morimoto S., Fujita R., Umezawa T., Platt S., Zwaaftink C. G., Myhre C.L., Fisher R., Lowry D., Nisbet E., France J., Maisch C.W., Brailsford G., Moss R., Goto D., Pandey S., Houweling S., Warwick N., Rockmann T.
Title : , Atmospheric Measurement Techniques, 18:6591-6607 (2025)

Presenter : Riddell-Young B., Michel S.E., Lan X., Tans P., Röckmann T., Dasgupta B., Oh Y., Bruhwiler L.M.P., Fujita R., Umezawa T., Morimoto S., Miller J.B.
Title : , Proceedings of the National Academy of Sciences of the United States of America, 122(50):e2516543122 (2025)

Presenter : Chandra N., Patra P.K., Fujita R., Hoglund-Isaksson L., Umezawa T., Goto D., Morimoto S., Vaughn B.H., Rockmann T.
Title : , Communications Earth & Environment, 5(147): (2024)

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Title : , Atmospheric Measurement Techniques, 17:5187-5200 (2024)

Presenter : Ito A., Patra P.K., Umezawa T.
Title : , Global Biogeochemical Cycles, 37(e2023GB007723):1-25 (2023)

Presenter : Umezawa T., Sugawara S., Kawamura K., Oyabu I., Andrews S. J., Saito T., Aoki S., Nakazawa T.
Title : , Atmospheric Chemistry and Physics, 22:6899-6917 (2022)

Presenter : Naveen C., Patra P.K., Bisht J.S.H., Ito A., Umezawa T., Saigusa N., Morimoto S., Aoki S., Janssens-Maenhout G.
Title : , Journal of the Meteorological Society of Japan, 99(2):309-337 (2021)

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)

Presenter : Kawamura K., Umezawa T., Sugawara S., Ishidoya S., Ishijima K., Saito T., Oyabu I., Murayama S., Morimoto S., Aoki S., Nakazawa T.
Title : , Polar Data Journal, 5:89-98 (2021)

Presenter : Umezawa T., Andrews S., Saito T.
Title : , Journal of the Meteorological Society of Japan, 98(1):115-127 (2020)

Presenter : Umezawa T., Matsueda H., Oda T., Higuchi K., Sawa Y., Machida T., Niwa Y., Maksyutov S.
Title : , Scientific Reports, 10(7963): (2020)

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

Presenter : Fujita R., Morimoto S., Umezawa T., Ishijima K., Patra P.K., Worthy D.E.J., Goto D., Aoki S., Nakazawa T.
Title : , Journal of Geophysical Research: Atmosphere, 123: (2018)

Presenter : Umezawa T., Brenninkmeijer C. A. M., Röckmann T., van der Veen C., Tyler S.C., Fujita R., Morimoto S., Aoki S., Sowers T., Schmitt J., Bock M., Beck J., Fischer H., Michel S.E., Vaughn B.H., Miller J.B., White J.W.C., Brailsford G., Schaefer H., Sperlich P., Brand W.A., Rothe M., Blunier T., Lowry D., Fisher R.E., Nisbet E.G., Rice A.L., Bergamaschi P., Veidt C., Levin I.
Title : , Atmospheric Measurement Techniques, 11:1207-1231 (2018)

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

Presenter : Ganesan A.L., Rigby M., Lunt M.F., Parker R.J., Boesch H., Goulding N., Umezawa T., Zahn A., Chatterjee A., Prinn R.G., Tiwari Y.K., Van der Schoot M., Krummel P.B.
Title : , Nature Communications (2017)

Presenter : Patra P.K., Saeki T., Dlugokencky E.J., Ishijima K., Umezawa T., Ito A., Aoki S., Morimoto S., Kort E.A., Crotwell A., Ravi Kumar K., Nakazawa T.
Title : , Journal of the Meteorological Society of Japan. Ser. II, 94(1):91-113 (2016)

Presenter : Umezawa T., Niwa Y., Sawa Y., Machida T., Matsueda H.
Title : , Geophysical Research Letters (2016)

Presenter : Ghosh A., Patra P. K., Ishijima K., Umezawa T., Ito A., Etheridge D. M., Sugawara S., Kawamura K., Miller J. B., Dlugokencky E. J., Krummel P. B. , Fraser P. J., Steele L. P., Langenfelds R. L., Trudinger C. M., White J. W. C., Vaughn B., Saeki T., Aoki S., Nakazawa T.
Title : , Atmospheric Chemistry and Physics, 15(5):2595-2612 (2015)

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

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

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

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 : -

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 : -

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 : -

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

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

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 : -

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

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 : -

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

Presenter : Chandra N., Patra P. K., Fujita R., Umezawa T., Goto D., Morimoto S., Vaughn B. H., Rockmann T.
Name of Society : Seventh International Symposium on Arctic Research (2023)
Name of Proceedings : Abstracts

Presenter : Chandra N., Patra P.K., Isaksson L.H., Fujita R., Umezawa T., Goto D., Morimoto S., Vaughn B.H., Rockmann T.
Name of Society : AGU annual meeting 2023 (2023)
Name of Proceedings : Abstracts

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 : -

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 : -

Presenter : Nara H., Saito T., Umezawa T., Tohjima Y.
Name of Society : 21th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2022) (2022)
Name of Proceedings : Abstracts, 39

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

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 : -

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

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

Presenter : Fujiwara M., Sakai T., Shiraishi K., Hayashi M., Nishi N., Ogino S.-Y., Patra P., Umezawa T., Inai Y., Shiotani M., Eguchi N., Shibata T., Khaykin S., Pan L.L.
Name of Society : JpGU - AGU Joint Meeting 2020 (2020)
Name of Proceedings : Abstracts

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

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

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

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

Presenter : Umezawa T., Andrews S., Saito T.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2019)
Name of Proceedings : Abstracts

Presenter : Sperlich P., Brailsford G., Moss R., Bromley T., Gray S., Martin R., Moossen H., Rothe M., Brand W., Englund-Michel S., Vaughn B., White J., Umezawa T., Röckmann T., van der Veen C., Nisbet E., Fisher R., Lowry D.
Name of Society : The 20th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (2019)
Name of Proceedings : Abstracts

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 : -

Presenter : Fujiwara M., Hayashi M., Ogino S., Shiraishi K., Sakai T., Umezawa T., Inai Y., Shiotani M., Nishi N., Patra P.K., Eguchi N.
Name of Society : 4th Atmospheric Composition and Asian Monsoon Workshop (ACAM 2019) (2019)
Name of Proceedings : -

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 : -

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 : -

Presenter : Jagat B., Patra P.K., Chandra N., Gromov S., Umezawa T., Zahn A., Brenninkmeijer C.A.M.
Name of Society : Japan Geoscience Union Meeting 2019 (2019)
Name of Proceedings : Abstracts

Presenter : Umezawa T., Saito T.
Name of Society : Japan Geoscience Union Meeting 2019 (2019)
Name of Proceedings : Abstracts

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 : -

Presenter : Fujiwara M., Hayashi M., Ogino S., Shiraishi K., Sakai T., Umezawa T., Inai Y., Shiotani M., Nishi N., Patra P. K., Eguchi N., Pan L.
Name of Society : AGU Fall Meeting 2019 (2019)
Name of Proceedings : Abstracts

Presenter : Umezawa T., Sugawara S, Kawamura K., Sugiyama T., Patra P.K., Ishijima K., Saito T., Morimoto S., Aoki S., Nakazawa T.
Name of Society : 2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference (2018)
Name of Proceedings : Abstracts

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

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

Presenter : Umezawa T., Brenninkmeijer C.A.M., Röckmann T., van der Veen C., Tyler S.C., Fujita R., Morimoto S., Aoki S., Sowers T., Schmitt J., Bock M., Beck J., Fischer H., Michel S.E., Vaughn B.H., Miller J.B., White J.W.C., Brailsford G., Schaefer H., Sperlich P., Brand W.A., Rothe M., Blunier T., Lowry D., Fisher R.E., Nisbet E.G., Rice A.L., Bergamaschi P., Veidt C., Levin I.
Name of Society : EGU General Assembly 2018 (2018)
Name of Proceedings : Abstracts

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

Presenter : Fujita R., Morimoto S., Umezawa T., Ishijima K., Patra P.K., Worthy D.E.J., Goto D., Aoki S., Nakazawa T.
Name of Society : Fifth International Symposium on Arctic Research (ISAR-5) (2018)
Name of Proceedings : Abstracts

Presenter : Umezawa T., Matsueda H., Sawa Y., Niwa Y., Machida T., Zhou L.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts

Presenter : Saigusa N., Machida T., Umezawa T., Patra P.K., Saeki T., Niwa Y., Ichii K., Kondo M.
Name of Society : The joint conference of AsiaFlux Workshop 2017 and the 15th Anniversary Celebration of ChinaFLUX (2017)
Name of Proceedings : Abstracts - OS1-1

Presenter : Sugawara S., Ishidoya S., Morimoto S., Aoki S., Nakazawa T., Umezawa T., Toyoda S., Honda H.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstratcts

Presenter : Machida T., Matsueda H., Sawa Y., Niwa Y., Umezawa T., Tsuboi K.
Name of Society : 10th International Carbon Dioxide Conference (2017)
Name of Proceedings : Abstracts

Presenter : Machida T., Aoki S., Matsueda H., Sawa Y., Ishidoya S., Umezawa T., Sugawara S., Goto D., Niwa Y., Tsuboi K., Katsumata K., Nakazawa T., Morimoto S.
Name of Society : JpGU-AGU Joing Meeting 2017 (2017)
Name of Proceedings : Abstracts

Presenter : Umezawa T., Niwa Y., Machida T., Sawa Y., Matsueda H.
Name of Society : 13th Annual Meeting Asia Oceania Geosciences Society (2016)
Name of Proceedings : -

Presenter : Umezawa T., Machida T., Niwa Y., Sawa Y., Matsueda H., Zhou L.
Name of Society : 13th Annual Meeting Asia Oceania Geosciences Society (2016)
Name of Proceedings : -

Presenter : Umezawa T., Matsueda H., Machida T., Sawa Y., Niwa Y.
Name of Society : 日本地球惑星科学連合2016年大会 (2016)
Name of Proceedings : -

Presenter : Machida T., Umezawa T., Sawa, Y., Niwa, Y., Matsueda, H.
Name of Society : EGU General Assembly 2016 (2016)
Name of Proceedings : Abstracts

Presenter : Machida T., Sasakawa M., Umezawa T., Sawa Y., Matsueda H., Niwa Y., Tsuboi K., Murayama S., Morimoto S., Aoki S.
Name of Society : InGos International Conference (2015)
Name of Proceedings : Abstracts

Presenter : Umezawa T., Brenninkmeijer C.A.M., Roeckmann T., Tyler S., Aoki S., Morimoto S.
Name of Society : InGOS International Conference (2015)
Name of Proceedings : -

Presenter : Niwa Y., Machida T., Sawa Y., Matsueda H., Umezawa T.
Name of Society : 11th International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-11) (2015)
Name of Proceedings : Abstracts, 89-89

Presenter : Umezawa T., Machida T., Sawa Y., Matsueda H., Niwa Y.
Name of Society : The 43rd NOAA ESRL Global Monitoring Annual Conference (2015)
Name of Proceedings : -

Presenter : Umezawa T., Baker A.K., Brenninkmeijer C.A.M., Zahn A., Oram D., Velthoven P.V.
Name of Society : The 43rd NOAA ESRL Global Monitoring Annual Conference (2015)
Name of Proceedings : -

Presenter : Machida T., Sawa, Y., Matsueda, H., Niwa, Y., Tsuboi, K., Katsumata K., Umezawa T., Eto, H., Morimoto, S., Aoki, S.
Name of Society : IAGOS-IGAS Joint Meeting (2015)