Rchr
J-GLOBAL ID：201801014011493849
Update date: Jun. 24, 2024
Akira Oka
Akira Oka
Affiliation and department：
Research field (1)：
Atmospheric and hydrospheric science
Research theme for competitive and other funds (13)：
- 2024 - 2029 グローバル南極学:大変化する氷床と地球環境の連鎖をつなぐ
- 2024 - 2029 南極システムダイナミクスの数値モデリング
- 2023 - 2026 過去の温暖期の大西洋子午面循環弱化イベントに対する中緯度偏西風帯の応答
- 2022 - 2026 Study of the internal cycles of trace metals in the western North Pacific by using ship observation and modeling
- 2021 - 2025 Mechanism and impact of enhanced thermal diffusivity due to double-diffusive convection on ocean circulation, climate and ecosystem
- 2019 - 2022 Modeling the global ocean circulation and biogeochemical cycles in the glacial climate
- 2017 - 2022 Integrative modeling of the Antarctic Ice Sheet, ocean, and climate
- 2016 - 2018 Nd isotope modelling for clarifying the ocean mixing processes
- 2014 - 2018 Early history of NADW: proposal and verification of Pacific inflow hypothesis
- 2014 - 2017 Modeling the deep ocean circulation which controls the glacial abrupt climate changes
- 2013 - 2016 Understanding the interaction between abrupt climate change and glacial cycle using earth system modeling
- 2011 - 2014 Simulation of long-term ocean variability by integrative modeling approach
- 2005 - 2007 海洋深層循環が海洋炭素循環に果たす役割とその気候への影響の評価に関する研究
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Papers (58)：
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Hidetaka Kobayashi, Akira Oka, Takashi Obase, Ayako Abe-Ouchi. Assessing transient changes in the ocean carbon cycle during the last deglaciation through carbon isotope modeling. 2023
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Sam Sherriff-Tadano, Ayako Abe-Ouchi, Masakazu Yoshimori, Rumi Ohgaito, Tristan Vadsaria, Wing-Le Chan, Haruka Hotta, Maki Kikuchi, Takanori Kodama, Akira Oka, et al. Southern Ocean surface temperatures and cloud biases in climate models connected to the representation of glacial deep ocean circulation. Journal of Climate. 2023. 1-38
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Yoshio Masuda, Yasuhiro Yamanaka, Sherwood Lan Smith, Takafumi Hirata, Hideyuki Nakano, Akira Oka, Hiroshi Sumata, Maki Noguchi Aita. Acclimation by diverse phytoplankton species determines oceanic carbon to nitrogen ratios. Limnology and Oceanography Letters. 2023
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Kiminori Sugino, Akira Oka. Zinc and silicon biogeochemical decoupling in the North Pacific Ocean. Journal of Oceanography. 2022. 79. 1. 61-76
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Yusuke Sasaki, Hidetaka Kobayashi, Akira Oka. Global simulation of dissolved <sup>231</sup>Pa and <sup>230</sup>Th in the ocean and the sedimentary <sup>231</sup>Pa∕<sup>230</sup>Th ratios with the ocean general circulation model COCO ver4.0. Geoscientific Model Development. 2022. 15. 5. 2013-2033
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MISC (6)：
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岡顕, 阿部彩子, シェリフ多田野サム, 横山祐典, 川村賢二, 羽角博康. 南大洋の温暖化が引き起こす氷期大西洋深層循環のモード遷移. 日本海洋学会大会講演要旨集. 2021. 2021
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岡顕, 小畑元, 田副博文. 海洋大循環モデルによる希土類元素濃度全球分布の再現. 日本海洋学会大会講演要旨集. 2020. 2020
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阿部 彩子, 大垣内 るみ, 高橋 邦生, シェリフ多田野 サム, 近本 めぐみ, 岡 顕, 吉森 正和, 川村 賢二. B170 氷期の海洋深層循環と気候形成メカニズム : 大気海洋結合モデル比較実験からの示唆(気候システムII,一般口頭発表). 大会講演予講集. 2015. 108. 142-142
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Simulation of the thermohaline circulation at the Last Glacial Maximum. Kaiyo monthly. 2010. 42. 3. 180-184
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Study on vertical profiles of rare earth elements by using an ocean general circulation model. Kaiyo monthly. 2010. 42. 1. 31-38
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