Members

Education & Career

• 2021 –
• Research Director of Climate Change and Air Quality Research Program & Head of Global Atmospheric Chemistry Section, National Institute for Environmental Studies

• 2021 –
• Science and Application Lead of the GOSAT-GW project, Satellite Observation Center, National Institute for Environmental Studies

• 2010 –
• Head, National Institute for Environmental Studies

• 2005 – 2010
• Senior Research Scientist, National Institute for Environmental Studies

• 2001 – 2005
• Research Scientist, National Institute for Environmental Studies

• 1998 – 2001
• Ph.D, Department of Chemistry, Graduate School of Science, The University of Tokyo

• 1996 – 1998
• MSc, Department of Chemistry, Graduate School of Science, The University of Tokyo

• 1992 – 1996
• BS, Department of Chemistry, School of Science, The University of Tokyo

• 1988 – 1991
• Takamatsu High School, Kagawa Prefecture

Academic Societies

• Japan Society of Atmospheric Chemistry
• The Geochemical Society of Japan
• Japan Society for Atmospheric Environment
• Japan Geoscience Union
• American Geophysical Union
• The Oceanographic Society of Japan

Activities & Services

• Co-Chair (2019–Present), CEOS AC-VC (Committee on Earth Observation Satellites, Atmospheric Composition-Virtual Constellation)
• Leader of Long-term Trend Team (2021–Present), CCQM-GAWG Task Group on Ozone Cross-Section Change Management
• Co-Chair of Scientific Steering Committee (2017–2020), International Global Atmospheric Chemistry (IGAC) project
• Member of Scientific Steering Committee (2012–2021), International Global Atmospheric Chemistry (IGAC) project
• Chair of Local Organizing Committee (2016–2018), 2018 joint iCACGP Symposium/IGAC Science Conference, Takamatsu, Kagawa, Japan
• Chair (2012–2020), IGAC-Japan National Committee
• Co-Chair (2015–Present), IGAC-MANGO (Monsoon Asia and Oceania Networking Group)
• Co-Chair of IGAC Scientific Program Committee (2014–2016), 14th IGAC Open Science Conference 2016, Breckenridge, USA
• Co-Chair/Planning Group member (2010–2012), JSPS & AvH – Japanese-German Frontiers of Science (JGFoS) Symposium
• Co-Author (2010), Task Force on Hemispheric Transport on Air Pollution (TF HTAP) 2010 Assessment Report

Awards

• NIES Award 2018 (2018), “For great contributions to international activities”, NIES.
• JpGU Nishida Prize (2017), “Studies on the formation of tropospheric ozone and marine sulfate aerosol”, Japan Geoscience Union.
• Environment Prize (2008), “Development of a novel mass spectrometric instrument for real-time measurements of volatile and semi-volatile organic compounds in air”, The Hitachi Environment Foundation.
• Geochemical Society of Japan (GSJ) Award for Young Researchers (2007), “Photochemistry and transport of ozone in the troposphere: Instrumentation, field measurements, and model analysis”.
• Japan Society of Atmospheric Chemistry (JpSAC) Award for Young Scientists (2007), “A chemistry-transport model analysis on spatial and temporal variations of surface ozone based on standardization of measurements and integration of observational networks”.
• Inoue Research Award for Young Scientists (2002), “The seasonal variation of atmospheric peroxyacetyl nitrate (PAN) in east Asia observed by GC/NICI-MS technique”, Inoue Foundation for Science.

Selected Publications

• Tanimoto, H., N. T. Kim Oanh, M. Naja, S.-C. Lung, M. T. Latif, L. Yu, A. Salam, M. O. Cambaliza, T. T. Hien, O. M. T. Hlaing, P. Lestari, H. Janz, M. F. Khokhar, B. Adhikary, M. Keywood, T. Wang, J. Crawford, M. Lawrence, and M. Melamed (2020), Atmospheric chemistry research in Monsoon Asia and Oceania: Current status and future prospects, APN Science Bulletin, 10(1), doi:10.30852/sb.2020.1246.
• Okamoto, S., Tanimoto, H., Hirota, N., Ikeda, K., & Akimoto, H. (2018). Decadal shifts in wind patterns reduced continental outflow and suppressed ozone trend in the 2010s in the lower troposphere over Japan. Journal of Geophysical Research: Atmospheres, 123, 12,980– 12,993. https://doi.org/10.1029/2018JD029266
• Tanimoto, H., R. M. Zbinden, V. Thouret, and P. Nedelec, Consistency of tropospheric ozone observations made by different platforms and techniques in the global databases, Tellus B, 67, 27073, doi: 10.3402/tellusb.v67.27073, 2015.
• Tanimoto, H., K. Ikeda, K. F. Boersma, R. J. van de A, S. Garivait, Interannual variability of nitrogen oxides emissions from boreal fires in Siberia and Alaska during 1996-2011 as observed from space, Environ. Res. Lett., 10, 065004, doi:10.1088/1748-9326/10/6/065004, 2015.
• Tanimoto H, Kameyama S, Iwata T, Inomata S, Omori Y. Measurement of air-sea exchange of dimethyl sulfide and acetone by PTR-MS coupled with gradient flux technique. Environ Sci Technol. 2014;48(1):526-33. doi: 10.1021/es4032562. Epub 2013 Dec 5. PMID: 24219807.
• Kudo, S., Tanimoto, H., Inomata, S., Saito, S., Pan, X.-L., Kanaya, Y., Taketani, F., Wang, Z.-F., Chen, H., Dong, H., Zhang, M., and Yamaji, K., Emissions of nonmethane volatile organic compounds from open crop residue burning in Yangtze River Delta region, China, J. Geophys. Res., 119, 7684-7698, doi:10.1002/2013JD021044, 2014.
• Kameyama, S., H. Tanimoto, S. Inomata, H. Yoshikawa-Inoue, U. Tsunogai, A. Tsuda, M. Uematsu, M. Ishii, D. Sasano, K. Suzuki, and Y. Nosaka, Strong relationship between dimethyl sulfide and net community production in the western subarctic Pacific, Geophys. Res. Lett., 40, 3986-3990, doi:10.1002/grl.50654, 2013.
• Parrish, D. D., Law, K. S., Staehelin, J., Derwent, R., Cooper, O. R., Tanimoto, H., Volz-Thomas, A., Gilge, S., Scheel, H.-E., Steinbacher, M., and Chan, E.: Long-term changes in lower tropospheric baseline ozone concentrations at northern mid-latitudes, Atmos. Chem. Phys., 12, 11485–11504, https://doi.org/10.5194/acp-12-11485-2012, 2012.
• Kameyama, Y., H. Tanimoto, S. Inomata, U. Tsunogai, A. Oki, S. Takeda, H. Obata, A. Tsuda, M. Uematsu (2010), High-resolution measurement of multiple volatile organic compounds dissolved in seawater using equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS), Mar.Chem., 122 (1/4), 59-73.
• Kameyama, S., H. Tanimoto, S. Inomata, U. Tsunogai, A. Ooki, Y. Yokouchi, S. Takeda, H. Obata, and M. Uematsu, Equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS) for sensitive, high-resolution measurement of dimethyl sulfide dissolved in seawater, Anal. Chem., 81(21), 9021-9026, doi: 10.1021/ac901630h, 2009.
• Tanimoto, H., Ohara, T., and Uno, I. (2009), Asian anthropogenic emissions and decadal trends in springtime tropospheric ozone over Japan: 1998–2007, Geophys. Res. Lett., 36, L23802, doi:10.1029/2009GL041382.
• 谷本浩志, 橋本茂, 向井人史, 「技術調査報告」大気レベルのオゾン標準に関する日本における進展と世界の動向, 大気環境学会誌, 44(4), 222-226, 2009. (Tanimoto, H., S. Hashimoto, and H. Mukai (2009), Recent progress in Japan and world trends of the ozone standard at ambient levels, J. Jpn. Soc. Atmos. Environ., 44(4), 222-226.)
• Tanimoto, H., K. Sato, T. Butler, M. G. Lawrence, J. A. Fisher, M. Kopacz, R. M. Yantosca, Y. Kanaya, S. Kato, T. Okuda, S. Tanaka, and J. Zeng (2009), Exploring CO pollution episodes observed at Rishiri Island by chemical weather simulations and AIRS satellite measurements: Long-range transport of burning plumes and implications for emissions inventories, Tellus B, 61, 394-407, doi: 10.1111/j.1600-0889.2008.00407.x.
• Tanimoto, H. (2009), Increase in springtime tropospheric ozone at a mountainous site in Japan for the period 1998-2006, Atmos. Environ., 43, 1358-1363, doi:10.1016/j.atmosenv.2008.12.006.
• Inomata, S., Tanimoto, H., Kameyama, S., Tsunogai, U., Irie, H., Kanaya, Y., and Wang, Z.: Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements, Atmos. Chem. Phys., 8, 273–284, https://doi.org/10.5194/acp-8-273-2008, 2008.
• Tanimoto, H., Sawa, Y., Yonemura, S., Yumimoto, K., Matsueda, H., Uno, I., Hayasaka, T., Mukai, H., Tohjima, Y., Tsuboi, K., and Zhang, L.: Diagnosing recent CO emissions and ozone evolution in East Asia using coordinated surface observations, adjoint inverse modeling, and MOPITT satellite data, Atmos. Chem. Phys., 8, 3867–3880, https://doi.org/10.5194/acp-8-3867-2008, 2008.
• Tanimoto, H., K. Matsumoto, and M. Uematsu (2008), Ozone-CO correlations in Siberian wildfire plumes observed at Rishiri Island, SOLA, 4, 65-68, doi:10.2151/sola.2008-017.
• Tanimoto, H., N. Aoki, S. Inomata, J. Hirokawa, and Y. Sadanaga (2007), Development of a PTR-TOFMS instrument for real-time measurements of volatile organic compounds in air, Intern. J. Mass Spectrom., doi:10.1016/j.ijms.2007.01.009, 263, 1-11.
• Tanimoto, H., H. Mukai, Y. Sawa, H. Matsueda, S. Yonemura, T. Wang, S. Poon, A. Wong, G. Lee, J.Y. Jung, K.R. Kim, M.H. Lee, N.H. Lin, J.L. Wang, C.F. Ou-Yang, C.F. Wu, H. Akimoto, P. Pochanart, K. Tsuboi, H. Doi, C. Zellweger, and J. Klausen (2007), Direct assessment of international consistency of standards for ground-level ozone: Strategy and implementation toward metrological traceability network in Asia, J. Environ. Monit., 9, doi:10.1039/b701230f, 1183-1193.
• Tanimoto, H., Mukai, H., Hashimoto, S., and Norris, J. E. (2006), Intercomparison of ultraviolet photometry and gas-phase titration techniques for ozone reference standards at ambient levels, J. Geophys. Res., 111, D16313, doi:10.1029/2005JD006983.
• Tanimoto, H., Sawa, Y., Matsueda, H., Uno, I., Ohara, T., Yamaji, K., Kurokawa, J., and Yonemura, S. (2005), Significant latitudinal gradient in the surface ozone spring maximum over East Asia, Geophys. Res. Lett., 32, L21805, doi:10.1029/2005GL023514.
• Tanimoto, H., J. Hirokawa, Y. Kajii, and H. Akimoto, Characterization of gas chromatography/negative ion chemical ionization mass spectrometry for ambient measurement of PAN: Potential interferences and long-term sensitivity drift, Geophys. Res. Lett., 27(14), 2089-2092, 2000.
• Tanimoto, H., Y. Kajii, J. Hirokawa, H. Akimoto, and N.P. Minko, The atmospheric impact of boreal forest fires in far eastern Siberia on the seasonal variation of carbon monoxide: Observations at Rishiri, a northern remote island in Japan, Geophys. Res. Lett., 27(24), 4073-4076, 2000.
• Tanimoto, H., J. Hirokawa, Y. Kajii, and H. Akimoto, A new measurement technique of peroxyacetyl nitrate at parts per trillion by volume levels: Gas chromatography/negative ion chemical ionization mass spectrometry, J. Geophys. Res., 104(17), 21,343-21,354, 1999.

Invited Presentations

• Tanimoto, H., Ozone pollution in East Asia: Current state and control strategies, 2013 International Workshop on Environment and Resources (Air Quality and its Monitoring and Control Technique), Ming Chi University of Technology, 2013. (invited lecture)
• Tanimoto, H., Ground-level ozone regulations in East Asia: Lesson learned and future directions of control strategies, International Seminar: Science and Policy of Ground-level Ozone Issues for Thailand Air Quality Management, Bangkok, July 2012. (invited lecture)
• Tanimoto, H., et al., Decadal trends in tropospheric ozone over East Asian Pacific rim during 1998-2007: Implications for emerging Asian emissions impacts and comparison to European and North American records, American Geophysical Union 2010 Fall Meeting, San Francisco, 13-17 December 2010. (invited talk)
• Tanimoto, H., et al., Exploring CO pollution episodes observed at Rishiri Island by AIRS satellite measurements and chemical transport model simulations: Long-range transport of burning plumes and implications for emissions inventories, 2009 NASA Sounder Science Team Meeting, Greenbelt, Maryland, 13-16 October, 2009. (invited talk)
• Tanimoto, H., et al., Recent PTR-MS activities at NIES: Instrumentation and field measurements, 4th international PTR-MS conference 2009, Obergurgl, 16-21 February, 2009. (invited talk)
• Tanimoto, H., et al., The NIES PTR-TOFMS instrument: design, performance, and application, 3rd international PTR-MS conference 2007, Obergurgl, 27 January-1 February, 2007. (invited talk)
• Tanimoto, H., et al., Impact of changing climate and emissions on surface ozone distributions and evolution, Regional climate variability and its impacts in the Mediterranean Area, NATO Advanced Research Workshop, Marrakech, 23-27 November 2006. (invited talk)

Books

• Tanimoto, H., S. Kameyama, Y. Omori, S. Inomata, and U. Tsunogai, High-resolution measurement of volatile organic compounds dissolved in seawater using equilibrator inlet-proton transfer reaction-mass spectrometry (EI-PTR-MS), pp. 89-115, in Western Pacific Air-Sea Interaction Study, Eds. M. Uematsu, Y. Yokouchi, Y. W. Watanabe, S. Takeda, and Y. Yamanaka, TERRAPUB, Tokyo, pp. 284, doi:10.5047/w-pass.a02.001, ISBN: 978-4-88704-165-3, 2014. (http://www.terrapub.co.jp/e-library/w-pass/index.html)
• Ohara, T., K. Yamaji, I. Uno, H. Tanimoto, S. Sugata, T. Nagashima, J. Kurokawa, N. Horii, H. Akimoto, Long-term simulations of surface ozone in East Asia During 1980-2020 with CMAQ and REAS inventory. In: Borrego C., Miranda A.I. eds., Air Pollution Modeling and Its Application 19 (NATO Science for Peace and Security Series C: Environmental Security), Springer Verlag GmbH, pp.136-144, 2008.
• Tanimoto, H., H. Mukai, T. Ohara, I. Uno, Impact of changing climate and emissions on surface ozone distributions and evolution, Regional climate variability and its impacts in the Mediterranean area, edited by A. Mellouki and A.R. Ravishankara, NATO Science Series IV. Earth and Environmental Sciences – Vol. 79, 113-127, ISBN: 978-1-4020-6428-9, Springer Verlag GmbH, pp.113-127, 2007.
• Hatakeyama, S., A. Takami, H. Tanimoto, T. Miyoshi, Aerial measurements of SO2 in APEX project and continuous measurements of aerosol chemical composition on Fukue-jima Island during APEX-E3 campaign, Findings Curr. Probl. Asian Part. Environ. Change Stud., 2003.