| 事項 |
詳細 |
| 所属・職名 |
気象観測研究部・第二研究室・室長 |
| 連絡先 |
 |
| 個人ページ |
Researchmap ORCID WebofScience
|
| 専門分野 |
ライダー、水蒸気、エアロゾル・雲微物理
レーザー光を用いた大気リモートセンシング（ライダー）技術の研究を行っています。 |
| 学位 |
博士（理学） |
| 受賞歴、委員等 |
受賞歴
- 気象研究所長表彰（グループ受賞）（2023年）
- NASA Group Achievement awards for the CAMP2Ex campaign（グループ受賞）（2020年）
- (社)計測自動制御学会計測部門リモートセンシング部会奨励賞（2006年）
委員
- 世界気象機関 （WMO） インフラ委員会（INFOCOM）高層観測技術に関するエキスパートチーム（ET-UAM）委員
- レーザーセンシング学会 理事（国際交流担当）, 衛星搭載ライダーに関するプロジェクト調査委員会
- レーザー大気研究に関する国際調整グループ（International Coordination Group on Laser Atmospheric Studies，ICLAS）委員
|
| 発表論文 |
- Sakai, T., O. Uchino, T. Nagai, B. Liley, R. Querel, I. Morino, Y. Jin, T. Fujimoto, E. Oikawa, N. Oshima, 2025: Stratospheric aerosol backscatter and depolarization ratio observed with ground-based lidar at Tsukuba, Japan, and Lauder, New Zealand. J. Geophysical Research: Atmosphere, 130, e2024JD041329.
- Inoue, J., H. Seko, K. Sato, and T. Sakai, 2025: Operational capability of drone-based meteorological profiling in an urban area. J. Geophysical Research: Atmosphere, 130, e2024JD041927.
- Asher, E., A. Baron, P. Yu, M. Todt, P. Smale, B. Liley, R. Querel, T. Sakai, I. Morino, Y. Jin, T. Nagai, O. Uchino, E. Hall, P. Cullis, B. Johnson, T.D. Thornberry, 2024: Balloon baseline stratospheric aerosol profiles (B2SAP)—Perturbations in the southern hemisphere, 2019-2022. J. Geophysical Research: Atmosphere, 129, e2024JD041581.
- Yoshida, S., T. Sakai, T. Nagai, Y. Ikuta, T. Kato, K. Shiraishi, R. Kato, and H. Seko, 2024: Water vapor lidar observation and data assimilation for a moist low-level jet triggering a mesoscale convective system. Mon. Wea. Rev., 152, 1119–1137.
- Khaykin, S., G. Taha, T. Leblanc, T. Sakai, I. Morino, B. Liley, and S. Godin-Beekmann , 2024: Stratospheric aerosols [in “State of the Climate in 2023”]. Bull. Amer. Meteor. Soc., 105(8), S96–S98.
- Hofer, J., Seifert, P., Liley, J. B., Radenz, M., Uchino, O., Morino, I., Sakai, T., Nagai, T., and Ansmann, A., 2024: Aerosol-related effects on the occurrence of heterogeneous ice formation over Lauder, New Zealand∕Aotearoa, Atmos. Chem. Phys., 24, 1265–1280.
- Sakai, T., Yoshida, S., Nagai, T., Ikuta, Y., Shoji, Y., 2023: Comparison of lower tropospheric water vapor vertical distribution measured with Raman lidar and DIAL and the impact of data assimilation in numerical weather prediction model. In: Sullivan, J.T., et al. Proceedings of the 30th International Laser Radar Conference. ILRC 2022. Springer Atmospheric Sciences.
- T. T. Ngoc Trieu, I. Morino, O. Uchino, Y. Tsutsumi, T. Izumi, T. Sakai, T. Shibata, H. Ohyama, T. Nagahama, 2023: Long-range transport of CO and aerosols from Siberian biomass burning over northern Japan during 18–20 May 2016, Environmental Pollution, 32, 12119.
- Yoshida, S., T. Sakai, T. Nagai, Y. Ikuta, Y. Shoji, H. Seko, and K. Shiraishi, 2022: Lidar observations and data assimilation of low-level moist inflows causing severe local rainfall associated with a mesoscale convective system. Mon. Wea. Rev., 150,1781-1798.
- Khaykin, S., A. Podglajen, F. Ploeger, J. Grooß, F. Tence, S. Bekki, K. Khlopenkov, K. Bedka, L. Rieger, A. Baron, S. Beekmann, B. Legras, P. Sellitto, T. Sakai, J. Barnes, O. Uchino, I. Morino, T. Nagai, R. Wing, G. Baumgarten, M. Gerding, V. Duflot, G. Payen, J. Jumelet, R. Querel, B., A. Bourassa, B. Clouser, A. Feofilov, A. Hauchecorne, and F. Ravetta, 2022: Global perturbation of stratospheric water and aerosol burden by Hunga eruption, Commun Earth Environ,3, 316.
- Tran Thi Ngoc Trieu, I. Morino, O. Uchino, Y. Tsutsumi, T. Sakai, T. Nagai, A. Yamazaki, H. Okumura, K. Arai, K. Shiomi, D. F. Pollard, and B. Liley , 2022: Influences of aerosols and thin cirrus clouds on GOSAT XCO2 and XCH4 using Total Carbon Column Observing Network, sky radiometer, and lidar data. Int. J. Remote Sensing, 43:5, 1770-1799.
- Huang, Y., J. Kok, K. Kandler, H. Lindqvist, T. Nousiainen, T. Sakai, A. Adebiyi, O. Jokinen, 2020: Climate models and remote sensing retrievals neglect substantial desert dust asphericity. Geophys. Res. Lett., 47, e2019GL086592.
- Sakai, T., S. Yoshida, T. Nagai, and Y. Shoji, 2020: Development of water vapor lidar and observational studies for heavy rain prediction. The Review of Laser Engineering, 48, 595-598 (in Japanese).
- Yoshida, S., S. Yokota, H. Seko, T. Sakai, T. Nagai, 2020: Observation System Simulation Experiments of Water Vapor Profiles Observed by Raman Lidar using LETKF System. SOLA, 16, 43-50.
- Sakai, T., Nagai, T., Izumi, T., Yoshida, S., and Shoji, Y., 2019: Automated compact mobile Raman lidar for water vapor measurement: instrument description and validation by comparison with radiosonde, GNSS, and high-resolution objective analysis. Atmos. Meas. Tech., 12, 313-326.
- Bagtasa, G., M. G. Cayetano, C-S. Yuan, O. Uchino, T. Sakai, T. Izumi, I. Morino, T. Nagai, R. C. Macatangay, V. A. Velazco, 2019: ALong-range transport of aerosols from East and Southeast Asia to northern Philippines and its direct radiative forcing effect. Atmos. Environ., 218, 11707.
- Velazco, V.A., I. Morino, O. Uchino, A. Hori, M. Kiel, B. Bukosa, N.M. Deutscher, T. Sakai, T. Nagai, G. Bagtasa, T. Izumi, Y. Yoshida, D.W.T. Griffith, 2017: TCCON Philippines: First measurement results, satellite data and model comparisons in Southeast Asia. Remote Sensing, 9, 1228.
- Uchino, O., Sakai, T., Izumi, T., Nagai, T., Morino, I., Yamazaki, A., Deushi, M., Yumimoto, K., Maki, T., Tanaka, T. Y., Akaho, T., Okumura, H., Arai, K., Nakatsuru, T., Matsunaga, T., and Yokota, T., 2017: Lidar detection of high concentrations of ozone and aerosol transported from northeastern Asia over Saga, Japan. Atmospheric Chemistry and Physics, 17,1865-1879.
- Sakai, T., O. Uchino, T. Nagai, B. Liley, I. Morino, and T. Fujimoto, 2016: Long-term variation of stratospheric aerosols observed with lidars over Tsukuba, Japan, from 1982 and Lauder, New Zealand, from 1992 to 2015. Journal of Geophysical Research-Atmosphere, 121,110283-10293.
- Walker, M., D. Venable, D. N. Whiteman, T. Sakai, 2016: Application of the lamp mapping technique for overlap function for Raman lidar systems. Applied Optics, 55,2551-2558.
- Ohyama, H., S. Kawakami, T. Tanaka, I. Morino, O. Uchino, M. Inoue, T. Sakai, T. Nagai, A. Yamazaki, A. Uchiyama, T. Fukamachi, M. Sakashita, T. Kawasaki, T. Akaho, K. Arai, and H. Okumura, 2015: Observations of XCO2 and XCH4 with ground-based high-resolution FTS at Saga, Japan, and comparisons with GOSAT products. Atmospheric Measurement Techniques, 8, 5263-5276.
- Jin, Y., K. Kai, K. Kawai, T. Nagai, T. Sakai, A. Yamazaki, A. Uchiyama, D. Batdorj, N. Sugimoto, T. Nishizawa, 2015: Ceilometer calibration for retrieval of aerosol optical properties. Journal of Quantitative Spectroscopy and Radiative Transfer, 153, 49-56.
- Sakai, T., O. Uchino, I. Morino, T. Nagai, T. Akaho, T. Kawasakai, H. Okumura, K. Arai, A. Uchiyama, A. Yamazaki, T. Matsunaga, T. Yokota, 2014: Vertical distribution and optical properties of volcanic ash from Mt. Sakurajima detected with lidar and skyradiometer over Saga. Journal of The Remote Sensing Society of Japan, 34, 197-204.
- Ridley, D. A, S. Solomon, J. E. Barnes, V. D. Burlakov, T. Deshler, S. I. Dolgii, A. B. Herber, T. Nagai, R. R. Neely III, A.V. Nevzorov, C. Ritter, T. Sakai, B. D. Santer, M. Sato, A. Schmidt, O. Uchino and J. P. Vernier, 2014: Total volcanic stratospheric aerosol optical depths and implications for global climate change. Geophysical Research Letters, 41, 7763–7769. /doi:doi:10.1002/2014GL061541
- Sakai, T., N. Orikasa, T. Nagai, M. Murakami, T. Tajiri, A. Saito, K. Yamashita, and A. Hashimoto, 2014: Balloon-borne and Raman lidar observations of Asian dust and cirrus cloud properties over Tsukuba, Japan. Journal of the Geophysical Research - Atmosphere, 119, 3295–3308. /doi:doi:10.1002/2013JD020987
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