中緯度海域の大気海洋相互作用
亜熱帯モード水の変動とその影響
南大洋の海洋物理‐物質循環

Takikawa, T., Y. Tachibana, H. Nakamura, A. Nishina, A. Manda, H. Nishikawa, S. Kasuga, Y. Ando, and T. Kato (2025), Spatial structure of rain pool observed on the Kuroshio and Baiu fronts in the East China Sea. Journal of Oceanography, https://doi.org/10.1007/s10872-025-00759-7. 
Nakanowatari, T., T. Nakamura, H. Mitsudera, J. Nishioka, H. Nishikawa, H. Kuroda, and K. Uchimoto (2025), Decadal-scale reduction in net primary production in the western subarctic North Pacific: impact of lateral transport of dissolved iron from the Sea of Okhotsk. Environmental Research Letters, 20(5), https://doi.org/10.1088/1748-9326/adc614.
Hirata, H., H. Nishikawa, N. Usui, T. Miyama, S. Sugimoto, A. Kusaka, and T. Seto (2025), The Kuroshio large meander and its various impacts: a review. Journal of Oceanography, 81, 165-185,  https://doi.org/10.1007/s10872-025-00753-z.
Nishikawa, H., E. Oka, S. Sugimoto, F. Kobashi, M. Ishii, and NR. Bates (2025), Impact of Eighteen Degree Water thickness variation on the thermal and biogeochemical structure in the euphotic layer. Journal of Oceanography, 81, 235-246 https://doi.org/10.1007/s10872-025-00751-1.
Oka, E., S. Sugimoto, F. Kobashi, H. Nishikawa, S. Kanada, T. Nasuno, R. Kawamura, and M. Nonaka (2023), Subtropical Mode Water south of Japan impacts typhoon intensity. Science Advances, 9, doi: 10.1126/sciadv.adi2793.
Nishikawa, H., E. Oka, and S. Sugimoto (2023), Subtropical Mode Water in a recent persisting Kuroshio large-meander period: part II—formation and temporal evolution in the Kuroshio recirculation gyre off Shikoku. Journal of Oceanography, 79, 461–471. https://doi.org/10.1007/s10872-023-00689-2.
Tachibana, Y., M. Honda, H. Nishikawa, H. Kawase, H. Yamanaka, D. Hata, and Y. Kashino (2022), High moisture confluence in Japan Sea polar air mass convergence zone captured by hourly radiosonde launches from a ship, Scientific Reports,12, DOI:10.1038/s41598-022-23371-x.
Nishikawa, H., H. Mitsudera, T. Okunishi, S.-I. Ito, T. Wagawa, D. Hasegawa, T. Miyama, H. Kaneko, and R.-C. Lien (2021), Surface water pathways in the subtropical–subarctic frontal zone of the western North Pacific, Progress in Oceanography, 199,102691, https://doi.org/10.1016/j.pocean.2021.102691.
Shu, H. W., H. Mitsudera, K. Yamazaki, T. Nakamura, T. Kawasaki, T. Nakanowatari, H. Nishikawa, and H. Sasaki (2021), Tidally modified western boundary current drives interbasin exchange between the Sea of Okhotsk and the North Pacific. Scientific Reports, 11, 12037. https://doi.org/10.1038/s41598-021-91412-y.
Oka, E., H. Nishikawa, S. Sugimoto, B. Qiu, and N. Schneider (2021), Subtropical Mode Water in a recent persisting Kuroshio large-meander period. Part I: Formation and advection over the entire distribution region. Journal of Oceanography, 77, 781–795. https://doi.org/10.1007/s10872-021-00608-3.
Kawai Y., H. Nishikawa, and E. Oka (2019), In Situ Evidence of Low-Level Atmospheric Responses to the Oyashio Front in Early Spring, Journal of the Meteorological Society of Japan, 97, 423–438. DOI:10.2151/jmsj.2019-024.
Miyazawa Y., A. Kuwano-Yoshida, T. Doi, H. Nishikawa, T. Narazaki, T. Fukuoka, and K. Sato (2018), Temperature profiling measurements by sea turtles improve ocean state estimation in the Kuroshio-Oyashio Confluence region, Ocean Dynamics, 69 (2), 267–282, DOI: 10.1007/s10236-018-1238-5.
Mitsudera H., T. Miyama, H. Nishigaki, T. Nakanowatari, H. Nishikawa, T. Nakamura, T. Wagawa, R. Furue, Y. Fujii, and S. Ito (2018), Low ocean-floor rises regulate subpolar sea surface temperature by forming baroclinic jets, Nature Communications, 9, 1190, 10.1038/s41467-018-03526-z.
Nishikawa, H., Y. Tachibana, Y. Kawai, M. K. Yoshioka, and H. Nakamura (2016), Evidence for SST-forced anomalous winds revealed from simultaneous radiosonde launches from three ships across the Kuroshio Extension front, Monthly Weather Review, 144, 3553–3567, doi: 10.1175/MWR-D-15-0442.1.
Diawara, A., Y. Tachibana, K. Oshima, H. Nishikawa, and Y. Ando (2016), Synchrony of trend shifts in Sahel boreal summer rainfall and global oceanic evaporation, 1950–2012, Hydrology and Earth System Sciences, 20, 3789–3798, https://doi.org/10.5194/hess-20-3789-2016.
Sato, K., A. Manda, Q. Moteki, K. K. Komatsu, K. Ogata, H. Nishikawa, M. Oshika, Y. Otomi, S. Kunoki, H. Kanehara, T. Aoshima, K. Shimizu, J. Uchida, M. Shimoda, M. Yagi, S. Minobe, and Y. Tachibana (2015), Influence of the Kuroshio on Mesoscale Convective Systems in the Baiu Frontal Zone over the East China Sea. Monthly Weather Review, 144, 1017–1033, doi: 10.1175/MWR-D-15-0139.1.
Nishikawa, H., Y. Tachibana, and Y. Udagawa (2014), Radiosonde observational evidence of the impact of an extremely cold SST spot on a mesoscale anticyclone, Journal of Geophysical Research Atmospheres, 119(15), 9183–9195, DOI: 10.1002/2014JD021538.
Kasamo, K., A. Isobe, S. Minobe, A. Manda, H. Nakamura, K. Ogata, H. Nishikawa, Y. Tachibana, and S. Kako (2014), Transient and local weakening of surface winds observed above the Kuroshio front in the winter East China Sea, Journal of Geophysical Research Atmospheres, 119(3), 1277–1291, DOI: 10.1002/2013JD020610.

2010年 3月 三重大学 生物資源学部 共生環境学科 卒業
2012年3月 三重大学 生物資源学研究科 共生環境学専攻 博士前期課程 修了
2015年 3月 三重大学 生物資源学研究科 共生環境学専攻 博士後期課程 修了（博士（学術）取得）
2013年10月～2015年12月 鈴鹿工業高等専門学校 非常勤講師
2015年 4月 三重大学 生物資源学部 非常勤講師
2016年 1月 北海道大学 低温科学研究所 学術研究院
2017年 4月 北海道大学 低温科学研究所 博士研究員
2020年 4月 東京大学 大気海洋研究所 特任研究員
2024年 4月 国立研究開発法人 海洋研究開発機構 特任研究員
2025年11月 北海道大学 大学院水産科学研究院 准教授

2016年6月～　日本気象学会　人材育成男女共同参画委員

大気や海を測ることで、大気－海洋－海洋生態系の繋がりを解明していきます。一緒に楽しみながら研究しましょう。