Ventilation of the Western Arctic Halocline via Boundary Processes

观测表明，北极西部盐斜层是由源自冰架的水进行通风（补充）的。这种通风过程对北冰洋的物理、生物和化学系统至关重要。关于这种通风在北极西部发生的地方，是什么控制了它的大小，它是如何发生的，以及它在气候变化中如何变化，人们知之甚少。利用区域高分辨率海冰模型，为更好地了解加拿大盆地南部的通风过程提供了资金。模型计算将允许对边界-内部交换进行详细检查，将陆上通量与楚科奇海和波弗特海南部的具体动力过程和区域联系起来，并为检验这种交换的理论限制提供基础。模型设计、评估和分析将与作为北极西部陆架-盆地相互作用项目的一部分收集的数据紧密结合。这将为模型域提供有价值的测试，并激励模型分析，以解决仅凭数据无法解决的通风过程的各个方面。

Observations indicate that the western Arctic halocline is ventilated from (replenished by) waters that originate on the shelf. This ventilation process is of fundamental importance to the physical, biological, and chemical systems in the Arctic Ocean. Little is known about where this ventilation takes place in the western Arctic, what controls its magnitude, how it occurs, or how it might vary in a changing climate. Funds are provided to better understand this ventilation process in the southern Canada Basin using a regional, high resolution ocean-ice model. The model calculations will allow for a detailed examination of the boundary - interior exchange, relate the onshore flux to specific dynamical processes and regions of the Chukchi and southern Beaufort Seas, and provide a basis for testing of theoretical constraints on this exchange. The model design, evaluation, and analysis will be closely coupled to the data being collected as part of the western Arctic Shelf-Basin Interactions program. This will provide a valuable test of the model fields, as well as motivate the model analysis to address aspects of the ventilation process that cannot be resolved with the data alone.