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首页> 外文期刊>Journal of Geophysical Research, C. Oceans: JGR >Impact of the Surface Stress on the Volume and Freshwater Transport Through the Canadian Arctic Archipelago From a High-Resolution Numerical Simulation
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Impact of the Surface Stress on the Volume and Freshwater Transport Through the Canadian Arctic Archipelago From a High-Resolution Numerical Simulation

机译：从高分辨率数值模拟中通过加拿大北极群岛对体积和淡水输送的影响

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摘要

We use a numerical model forced with high temporal and spatial resolution atmospheric forcing to evaluate the volume and freshwater transport through the Canadian Arctic Archipelago (CAA). On average, the simulated inflow through the Queen Elizabeth Islands represents 40% of the transport entering the CAA through M'Clure Strait. The transport through Admunsden Gulf represents less than 10% of the total inflow. The impact of sea ice and winds on the volume and freshwater transports into and through this region is also investigated. At Nares Strait and West Lancaster Sound, the transport is overestimated due to too-mobile sea ice but different physical processes related to surface stress. The ice is driving larger ocean flow in the first case, while causing less flow reduction in the second case. While the transport through the Queen Elizabeth Islands responds to the changes in surface stress over the Beaufort Gyre and northern Baffin Bay, local surface stress opposed to the mean flow over the straits tends to reduce the throughflow transport. In Parry Channel and the southern CAA, the surface stress tends to enhance the transport and have a greater impact locally. Finally, the surface stress related to sea ice motion can significantly change the transport in the CAA during the winter months.
机译：我们使用强制使用高时和空间分辨率大气强制使用的数值模型来评估通过加拿大北极群岛（CAA）的体积和淡水输送。平均而言，通过女王伊丽莎白岛的模拟流入代表了通过M'Clure海峡进入CAA的40％的运输。通过Admunsden Gulf的运输代表总流入的不到10％。还研究了海冰和风对体积和淡水进入和通过该地区的影响。在纳雷斯海峡和西兰卡斯特的声音，由于过于移动的海冰，而且与表面应力相关的不同物理过程，运输过多。在第一种情况下，冰正在驾驶大的海洋流动，同时在第二种情况下导致减少流量。虽然通过女王伊丽莎白岛的运输回应了博福景的表面应力的变化，而北葡萄干湾的表面压力变化，则局部表面应力与海峡上的平均流量相反，往往会减少通风运输。在招架频道和南部CAA中，表面应力倾向于增强运输并在本地产生更大的影响。最后，与海冰运动相关的表面应力可以在冬季的冬季显着改变CAA的运输。

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