Member

OKA, Eitarou Professor Atmosphere and Ocean Research Institute Office: AORI Building-611 TEL: +81-4-7136-6042 FAX: +81-4-7136-6056 E-mail: HP: http://ocg.aori.u-tokyo.ac.jp/member/eoka/
Research Field Physical Oceanography, Ocean Observations Current Research Based on observations, I am investigating variability in ocean circulation on basin to meso (~100 km) scales spatially and day to interdecadal scales temporally. I analyze data from Argo (global temperature and salinity observing system with 3000 autonomous profiling floats), satellites, research vessels, as well as conduct research cruises. I am also examining the influence of ocean circulation variability on biogeochemical structure of the ocean. Representative Publications 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, eadi2793. 2. 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. 3. Oka, E., M. Ishii, T. Nakano, T. Suga, S. Kouketsu, M. Miyamoto, H. Nakano, B. Qiu, S. Sugimoto, and Y. Takatani, 2018: Fifty years of the 137E repeat hydrographic section in the western North Pacific Ocean. Journal of Oceanography, 74, 115-145.

OKA, Eitarou

Professor
Atmosphere and Ocean Research Institute

Office: AORI Building-611
TEL: +81-4-7136-6042
FAX: +81-4-7136-6056
E-mail:
HP: http://ocg.aori.u-tokyo.ac.jp/member/eoka/

Research Field

Physical Oceanography, Ocean Observations

Current Research

Based on observations, I am investigating variability in ocean circulation on basin to meso (~100 km) scales spatially and day to interdecadal scales temporally. I analyze data from Argo (global temperature and salinity observing system with 3000 autonomous profiling floats), satellites, research vessels, as well as conduct research cruises. I am also examining the influence of ocean circulation variability on biogeochemical structure of the ocean.

Representative Publications

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, eadi2793.
2. 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.
3. Oka, E., M. Ishii, T. Nakano, T. Suga, S. Kouketsu, M. Miyamoto, H. Nakano, B. Qiu, S. Sugimoto, and Y. Takatani, 2018: Fifty years of the 137E repeat hydrographic section in the western North Pacific Ocean. Journal of Oceanography, 74, 115-145.