- 2024 - 2028 大気中メタン濃度と同位体比の広域観測によるメタン濃度変動原因に関する研究
- 2023 - 2028 多成分気体分析に基づく成層圏物質循環の長期変動の評価
- 2022 - 2027 Evaluation of climate change and carbon/oxygen cycles based on innovative observations of atmospheric constituents
- 2023 - 2026 過去30年間で成層圏の大気循環は変化したか?:ハロカーボンの新規測定にもとづく推定
- 2019 - 2025 Arctic Challenge for Sustainability phase II (ArCS-II)
- 2020 - 2024 両極の氷床コアと全球気候植生モデルによる過去1万年のメタン濃度の変動要因の解明
- 2020 - 2024 同位体比を用いた大気中メタンの全球的変動原因の解明
- 2019 - 2022 Measurements of age of air by multi-clock tracers in stratosphere
- 2019 - 2022 Evaluation of an impact of global warming based on spatiotemporal variations in the atmospheric consitituents corrected for diffusive separation
- 2018 - 2022 Elucidation of global carbon cycle and its climate response
- 2015 - 2019 On the temporal variations of the atmospheric methane concentration by precise measurements of carbon and hydrogen isotopes.
- 2015 - 2018 A study on the stratospheric circulation by applying gravitational separation
- 2015 - 2018 Evaluation of global warming based on a precise observation of the atmospheric Ar/N2 ratio
- 2011 - 2015 Studies on temporal and spatial variations of atmospheric methane in the Arctic region using carbon and hydrogen isotopes
- 2011 - 2014 Global observation of the stratospheric air age
- 2010 - 2014 Antarctic haze: occurrence, spatial distribution, and long-range transport from mid-latitudes
- 2010 - 2012 A study of global methane cycle over the last 130 kyrs based on Antarctic and Greenland deep ice cores
- 2009 - 2012 Temporal and spatial variations of stratospheric greenhouse gases over the Antarctica revealed by using small-size stratospheric air samplers
- 2007 - 2010 A study on temporal variations of the atmospheric methane concentration at Canadian sub-Arctic region using its carbon and hydrogen isotope ratios
- 2006 - 2009 Study on atmospheric methane variations based on its carbon and hydrogen isotope measurements
- 2005 - 2009 Comprehensive studies of global greenhouse gas cycles in the atmosphere, terrestrial biosphere and oceans
- 2006 - 2007 Study on carbon cycle in forest ecosystem using stable oxygen isotopic measurement
- 2004 - 2007 Study on the role of aerosols in polar atmosphere and aerosol-cloud interaction obtained by comparative airborne observations in the Arctic and Antarctic
- 2005 - 2006 Development of a high-precision, continuous measurement system of atmospheric oxygen concentration in Antarctic region.
- 2003 - 2005 Study on environmental signals in polar ice core and reconstruction of environmental change
- 2003 - 2005 Tropospheric transport to Syowa Station, Antarctica : contribution from mid to low latitude
- 2003 - 2004 炭素同位体比観測による南北両極域での大気中メタン濃度変動の解明
- 1999 - 2004 北極域対流圏・成層圏物質の変動と気候影響
- 2001 - 2003 南極大気の微量気体成分・エアロゾル循環に果たす南大洋季節海氷域の役割に関する研究
- 2001 - 2002 炭素同位体比を用いた北極域における大気中のメタン濃度の変動に関する研究
- 1998 - 2000 Development of a balloon-borne stratospheric air sampler.
- 1998 - 2000 温室効果気体と気候変動研究
- 1998 - 2000 Variations and Cycles of Greenhouse Gases on the Earth's Surface
- 1997 - 1998 炭素同位体比を用いた地球表層における二酸化炭素循環の研究
- 1997 - 1998 Variations and cycles of greenhouse gases in the Arctic
- 1995 - 1997 Development of a cryogenic air sampling system for unmanned aircraft observation.
- 1995 - 1996 Observations of Polar Aerosols at Alaksa and Spitsbergen : Its influence on the global environmental change
- 1993 - 1995 Characteristics of Arctic Air-Ice-Ocean System
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