Ventilation of the Western Arctic Halocline via Boundary Processes

北极西部盐跃层通过边界过程的通风

• 批准号: 0421904
• 负责人: Michael Spall
• 金额: --
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-01 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0421904&HistoricalAwards=false
• 关键词: Ventilation; Western; Arctic; Halocline; via

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.

观察表明，北极西部盐跃层的通风来自(补充)源自大陆架的水。这一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的什么地方发生，是什么控制着它的大小，它是如何发生的，或者它可能会在不断变化的气候中发生变化，人们知之甚少。提供资金，以便利用区域高分辨率海冰模式更好地了解加拿大盆地南部的这一通风过程。模式计算将允许详细检查边界-内部交换，将陆上通量与楚科奇和南部波弗特海的特定动力过程和区域联系起来，并为测试这种交换的理论约束提供基础。模型的设计、评估和分析将与作为西部北冰洋陆架-盆地相互作用计划一部分收集的数据密切结合。这将对模型场进行有价值的测试，并激励模型分析以解决仅靠数据无法解决的通风过程的各个方面。