Eddy Distributions in the Northwestern Pacific and Their Impacts on the Kuroshio

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Project title

Code/計畫編號

MOST103-2611-M019-012

Translated Name/計畫中文名

西北太平洋渦漩分布與對黑潮的影響

Project Coordinator/計畫主持人

Chung-Ru Ho

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Marine Environmental Informatics

Website

https://www.grb.gov.tw/search/planDetail?id=8359535

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

31-07-2015

Bugetid/研究經費

1932千元

ResearchField/研究領域

海洋科學

"黑潮為北太平洋的西側邊界流，它將水體與熱量從低緯度往高緯度區域運輸，對北半球的天氣甚至於氣候變動有著顯著的影響，因此有必要對於黑潮流域的變動性做進一步的了解，尤其是臺灣附近海域。台灣東部海域是海洋中尺度渦漩豐富區，而中尺度渦漩不論對大氣、海洋或環境的變化皆有重大影響。而這些渦漩，若與黑潮發生交互作用，對於黑潮的擺動、流速、流量都會有影響。因此，本研究將以衛星測高資料及 Argo 資料，詳細分析西北太平洋的中尺度渦漩分布，並再進一步了解其對黑潮的影響。本計畫將深入探討並解答下列幾個科學議題：(1)與台灣東部黑潮交互作用之渦漩的來源與分布；(2)影響黑潮之中尺度渦漩的影響深度與特性；(3)不同撞擊分布對黑潮之影響與可能機制。""The Kuroshio is a western boundary current in the North Pacific. It transports water and heat from low latitudes to high latitudes and affects the weather and climate of the Northern Hemisphere. Therefore, to further understand the variation of Kuroshio is very important, especially in the region near eastern Taiwan because it is an eddy-rich zone. Meso-scale eddies profoundly influence the flux of momentum, heat, salt and even ocean-atmosphere systems. When eddies interact with the Kuroshio, it would affect the path, transport, and velocity of Kuroshio. Hence, the aims of this proposal are to investigate the distributions of eddies in the northwestern Pacific and to examine their impacts on the Kuroshio when they interact with the Kuroshio. The absolute dynamic topography data derived from multi-satellite altimetry and the Argo drifter data are employed in this study. The following issues might be answered after the project is finished. They are 1) the distributions and sources of eddies interacting with the Kuroshio off the eastern Taiwan; 2) the influence depths of these eddies can be reached; and 3) the effect and mechanism of different impacts on the Kuorshio."

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Eddy Distributions in the Northwestern Pacific and Their Impacts on the Kuroshio

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