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| Job title |
Resercher/The 5th lab./Department of Atmosphere, Ocean, and Earth System Modeling Research |
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| Personal |
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| Expertise |
Physical Oceanography, Data Assimilation |
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| Publications |
- Kawakami, Y. N. Hirose, H. Nakano, L. S. Urakawa, K. Aoki, S. Hirahara, and T. Toyoda (2025): Oceanic cool spot formed off Boso Peninsula in the late June 2022, J. Oceanogr., Online first
- Toyoda, T., N. Hirose, and Coauthors, (2025): Bottom Topography Effect on the Seasonal Mode Generation of the Tsugaru Warm Current, J. Clim., 38(8), 1791-1811
- Hirose, N., N. Usui, K. Sakamoto, N. Kohno, and G. Yamanaka (2022): Superposition of coastal-trapped waves and Kuroshio warm water intrusions caused unusually high sea levels around the southern coasts of Japan in early September 1971, J. Oceanogr., 78(6), 475-493.
- Toyoda, T., K. Sakamoto, N. Usui, N. Hirose, K. Tanaka, T. Katsumata, D. Takahashi, M. Niki, K. Kutsuwada, T. Miyama, H. Nakano, L. S. Urakawa, K. K. Komatsu, Y. Kawakami, and G. Yamanaka (2021): Surface-layer circulations in Suruga Bay induced by intrusions of Kuroshio branch water, Frontiers in Marine Science, 8, 721500.
- Kosugi, N., N. Hirose, N., T. Toyoda, M. Ishii (2021): Rapid freshening of Japan Sea Intermediate Water in the 2010s. J Oceanogr. 77, 269–281.
- Hirose, N., N. Usui, K. Sakamoto, H. Tsujino, G. Yamanaka, H. Nakano, S. Urakawa, T. Toyoda, Y. Fujii, N. Kohno (2019): Development of a new operational system for monitoring and forecasting coastal and open-ocean states around Japan, Ocean Dyn,, 69, 1333-1357.
- Sakamoto, K., H. Tsujino, H. Nakano, S. Urakawa, T. Toyoda, N. Hirose, N. Usui, G. Yamanaka (2019): Development of a 2-km resolution ocean model covering the coastal seas around Japan for operational application, Ocean Dyn., 69, 1181-1202.
- Toyoda, T., N. Hirose, L. S. Urakawa, H. Tsujino, H. Nakano, N. Usui, Y. Fujii, K. Sakamoto, G. Yamanaka (2019): Effects of inclusion of adjoint sea ice rheology on backward sensitivity evolution examined using an adjoint ocean–sea ice model. Monthly Weather Review, 147, 2145-2162.
- Usui, N., T. Wakamatsu,Y. Tanaka, N. Hirose, T. Toyoda, S. Nishikawa, Y. Fujii, Y. Takatsuki, H. Igarashi, H. Nishikawa, Y. Ishikawa, T. Kuragano, M. Kamachi (2017): Four-dimensional variational ocean reanalysis: a 30-year high-resolution dataset in the western North Pacific (FORA-WNP30), J. Oceanogr., 73(2), 205-233.
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