Dynamics of Intermediate and Deep Water Formation, Recirculation, and Export in the Subpolar Gyre

9531874 层裂 该项目是对拟作为世界海洋环流实验下的大西洋环流和气候实验的一部分进行的建模部分的贡献。 重点将是升级现有的等密度模型、数据同化和整合不同类型的区域模型。 将对不同的模拟方法进行比较，以评估每种方法的优缺点，并确定在气候模拟中包括海洋变率的最佳总体方法。 将特别注意将ACCE实地阶段的数据以及历史数据库的数据纳入模型。 在这个特殊的项目中，PI将专注于控制中间和深沃茨远离其在副极地环流的源区的时间依赖性扩散的物理学，以及这些水团对盆地尺度的上层海洋流动和海洋表面温度的影响。 具体的影响包括斜压性，底部地形，等密度和diapycnal混合，涡流通量，和时间依赖性划分的沃茨边界电流传输和内部再循环环流。

9531874 Spall This project is a contribution to the modeling component to be carried out as part of the Atlantic Circulation and Climate Experiment (ACCE) under the World Ocean Circulation Experiment (WOCE). The focus will be on upgrading existing isopycnal models, data assimilation, and integrating different types of regional models. Comparisons will be made among different modeling approaches in order to assess the strngths and weaknesses of each, and to determine the best overall approach for including ocean variability in climate modeling. Particular attention will be paid to assimilating, into the models, data from the field phase of ACCE, as well as from historical data bases. In this particular project, the PI will focus on the physics that control the time dependent spreading of intermediate and deep waters away from their source regions in the subpolar gyre, and the influences of these water masses on the basin-scale upper ocean flow and Sea Surface Temperature. Specific influences include baroclinicity, bottom topography, isopycnal and diapycnal mixing, eddy fluxes, and time dependence in partitioning the waters into boundary current transports and interior recirculation gyres.