Ocean mixing

海洋混合

• 批准号: 313012-2011
• 负责人: Kunze, Eric
• 金额: $ 0.27万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=481388
• 关键词: Ocean; mixing

Canada is bounded on three coasts by the Pacific, Arctic and Atlantic Oceans, making understanding them vital for the country's commerce and well-being. Ocean mixing plays a critical role in controlling the meridional thermohaline overturning circulation (global conveyor belt) which operates on climatological timescales of 1000's of years, nutrient supply to sunlit surface waters, and dispersal of natural and anthropogenic materials dissolved or suspended in seawater. In the stratified open ocean interior, turbulence is largely controlled by breaking of internal gravity waves and appears to be concentrated on ocean boundaries. As well as process-oriented collection and interpretation of field data, public-domain data sets such as WOCE hydrography and ARGO float will be analyzed to assess the role of mixing in the world ocean. My group will continue to study the physics of turbulence production by finescale internal waves and the resulting products, focusing on flow/topography interactions as well as interactions of internal waves with lower-frequency currents. We are also developing dye-release and -tracking abilities in order to follow water, dispersal of contaminants and explore the pathways of water transport and mixing in the ocean with an emphasis on the coastal environment, submarine canyons, the continental slope and shelf.

加拿大的三个海岸分别是太平洋、北极和大西洋，这使得了解它们对该国的商业和福祉至关重要。 海洋混合在控制南北向温盐翻转环流（全球传送带）方面起着关键作用，该环流在1000年的气候时间尺度上运作，向阳光照射的表面沃茨提供营养物，以及溶解或悬浮在海水中的自然和人为物质的扩散。 在分层的开放海洋内部，湍流主要是由内部重力波的破碎控制，并似乎集中在海洋边界。 除了注重过程的实地数据收集和解释外，还将分析海洋环流实验水文学和实时地转海洋学阵列浮标等公共领域的数据集，以评估混合在世界海洋中的作用。 我的小组将继续研究细尺度内波和由此产生的产品的湍流生产的物理学，重点是流/地形的相互作用，以及与低频电流的内波的相互作用。 我们还在发展染料释放和跟踪能力，以便跟踪水、污染物的扩散，并探索水在海洋中的迁移和混合途径，重点是沿海环境、海底峡谷、大陆坡和大陆架。