Near-Surface Transport Pathways in the North Atlantic Ocean: Looking for Throughput from the Subtropical to the Subpolar Gyre
Near-Surface Transport Pathways in the North Atlantic Ocean: Looking for Throughput from the Subtropical to the Subpolar Gyre
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北大西洋近地表传输路径：寻找从副热带到副极地环流的吞吐量
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Pratt
中科院分区：
文献类型：
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作者：
Irina;I.;Rypina;Lawrence;J.;Pratt
基于欧拉输运估计值和拉格朗日表面漂移物行为之间的差异，利用数据、测高表面高度、轨迹统计分析和动力系统技术相结合的方法研究了北大西洋近地表输运路径和过程。特别注意的问题，副热带到副极地涡旋间的流体交换。在这项研究中使用的速度场是由一个稳定的漂移衍生的背景流，其上叠加了一个随时间变化的高度计为基础的扰动。这一分析表明，在两年内从亚热带环流进入副极地环流的大部分流体来自一个狭窄的区域，位于墨西哥湾流核心的近岸，而在墨西哥湾流的离岸侧的流体在很大程度上阻止这样做的墨西哥湾流核心，这是一个强大的运输障碍，在协议与过去的研究。墨西哥湾流核心附近的运输障碍是r...
AbstractMotivated by discrepancies between Eulerian transport estimates and the behavior of Lagrangian surface drifters, near-surface transport pathways and processes in the North Atlantic are studied using a combination of data, altimetric surface heights, statistical analysis of trajectories, and dynamical systems techniques. Particular attention is paid to the issue of the subtropical-to-subpolar intergyre fluid exchange. The velocity field used in this study is composed of a steady drifter-derived background flow, upon which a time-dependent altimeter-based perturbation is superimposed. This analysis suggests that most of the fluid entering the subpolar gyre from the subtropical gyre within two years comes from a narrow region lying inshore of the Gulf Stream core, whereas fluid on the offshore side of the Gulf Stream is largely prevented from doing so by the Gulf Stream core, which acts as a strong transport barrier, in agreement with past studies. The transport barrier near the Gulf Stream core is r...
影响因子：
5.2
作者：
Bingham, Rory J.;Hughes, Chris W.;Williams, Richard G.
通讯作者：
Williams, Richard G.