Horizontal and vertical transports of nutrients between the Kuroshio main stream and its inshore side

2017 Fiscal Year Final Research Report

• Project/Area Number: 26287116
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Ehime University
• Principal Investigator: Guo Xinyu 愛媛大学, 沿岸環境科学研究センター, 教授 (10322273)
• Co-Investigator(Kenkyū-buntansha): 小松 幸生 東京大学, 大学院新領域創成科学研究科, 准教授 (30371834) ; 笹井 義一 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, グループリーダー代理 (40419130) ; 宮澤 泰正 国立研究開発法人海洋研究開発機構, アプリケーションラボ, グループリーダー (90399577)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 栄養塩輸送 / 黒潮 / 黒潮続流

Outline of Final Research Achievements

Using results of a low-trophic biogeochemical model, we calculated annually averaged horizontal nutrients transport between the Kuroshio main stream and its two lateral sides and annually averaged vertical nutrients transport through the bottom of eutrophic layer within the Kuroshio main stream. Our calculation shows 1) a large horizontal nutrients transport from inshore area south of Japan to the Kuroshio main stream; 2) a horizontal nutrients transport from mixed area to the Kuroshio Extension and a further southward nutrients transport from the Kuroshio Extension to subtropical area; 3) a large vertical nutrients transport around the Luzon Strait and Kuroshio Extension.

Free Research Field

Physical Oceanography