Bottom Boundary Layer Structure in a Shelfbreak Frontal Zone

断架锋区的底部边界层结构

• 批准号: 9217029
• 负责人: Robert Houghton
• 金额: $ 14.5万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-11-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217029&HistoricalAwards=false
• 关键词: Bottom; Boundary; Layer; Structure; Shelfbreak

The goal of this project is to increase the understanding of how the dynamics of the bottom boundary layer affect coastal circulation on continental margins containing a shelfbreak front. Data collected in the Mid-Atlantic Bight were chosen for this study because the shelfbreak front in that region is a robust and persistent feature. The major scientific goals of this project are: evaluate the bottom boundary layer thickness, conduct an analysis of the circulation near the shelfbreak front, and study the bottom flow on the slope. In addition, the study of the bottom flow on the slope will test some scientific hypothesis derived from the models of Lentz and Trowbridge (1991) and Gawarkiewicz and Chapman (1992) which identify the dependence of the boundary layer thickness on the stratification, alongshore flow, and steepness of bottom topography.

这个项目的目标是增加对如何 底边界层的动力影响海岸 大陆边缘的环流包含一个陆架断裂前缘。 本研究选择了在中大西洋湾收集的数据 因为该区域的货架断裂前缘是坚固的， 持久性特征。 该项目的主要科学目标是： 边界层厚度，进行环流分析 在陆架坡折前缘附近，研究斜坡上的底层流。 此外，对坡面上的底流的研究将检验 一些科学假设来自伦茨的模型， 特罗布里奇（Trowbridge）（1991）以及Gawarkiewicz和Chapman（1992），其中 确定边界层厚度对 分层、沿岸流和底部陡度 地形