Deep‐Ocean Circulation in the Southwest Pacific Ocean Interior: Estimates of the Mean Flow and Variability Using Deep Argo Data
Deep‐Ocean Circulation in the Southwest Pacific Ocean Interior: Estimates of the Mean Flow and Variability Using Deep Argo Data
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西南太平洋内陆深海环流：利用 Deep Argo 数据估计平均流量和变率
DOI：
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发表时间：
2020
影响因子：
5.2
通讯作者：
J. Gilson
中科院分区：
文献类型：
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作者：
N. Zilberman;D. Roemmich;J. Gilson
全球深海环流的空间结构和时间变异性由于2,000米深度以下的有限采样而知之甚少。2016年部署的Deep Argo阵列显着增加了从海洋表面到西南太平洋盆地内部海底附近的海洋测量。2016年至2019年期间收集的深海阿尔戈剖面显示，相对于4 800米，1 500米至4 800米之间的4.3-4.7希沃特的深海西部边界流沿着汤加Kermadec海脊流动，在汤加Kermadec海脊和东太平洋海隆之间的深海平原上向南改道。向南回流的深层西边界流表现出季节性，可能会受到埃克曼抽水。
The spatial structure and time variability of the global deep‐ocean circulation are poorly understood due to limited sampling below 2,000‐m depth. A Deep Argo array deployed in 2016 has significantly increased oceanic measurements from the ocean surface to near the sea floor in the Southwest Pacific Basin interior. Deep Argo profiles collected between 2016 and 2019 show that 4.3–4.7 Sv between 1,500 and 4,800 m, relative to 4,800 m, of the Deep Western Boundary Current flowing along the Tonga Kermadec Ridge is redirected southward over the abyssal plain between the Tonga Kermadec Ridge and the East Pacific Rise. The southward recirculation of the Deep Western Boundary Current exhibits seasonality that may be influenced by Ekman pumping.