The Northwest Corner: Its Structure and Relation to the Subpolar Front

0221073 RossbyFunds被要求分析最近从大西洋西北角（NWC）收集的大量数据。 PI将尽可能完整地表征该区域的结构。 他将构建质量，动能和涡度预算，并将评估NWC的空间和时间稳定性。 他预计，当NWC释放势能时，流动结构会发生显着的时间依赖性，势能会以环或俯冲涡旋的形式积累。 他将探讨两种解释的流量扩大，因为它离开NWC -控制大西洋中脊结构和竞争之间的纬向流的副极锋和纬向再循环的沃茨离开NWC。PI表明，在副极地锋面区域内观察到的两个锋面通过向西的Rossby波传播反映了中大西洋海岭的两个断裂带，副极地锋面沃茨通过该断裂带流动。 现有数据来自欧拉系泊、拉格朗日浮标、水文测量、声学多普勒海流剖面仪测量和卫星测高。将进行一些旋转台实验。

0221073 RossbyFunds are requested to analyze a large body of recently collected data from the Northwest Corner (NWC) of the Atlantic Ocean. The PI will characterize the structure of the region as completely as possible. He will construct mass, kinetic energy, and vorticity budgets, and will assess the spatial and temporal stability of the NWC. He anticipates that significant temporal dependence of the flow structure occurs as the NWC sheds potential energy, which accumulates either as rings or subducting eddies. He will explore two explanations for the broadening of the flow as it leaves the NWC - control by the Mid-Atlantic Ridge structure and competition between the zonal flow of the Subpolar Front and the meridional recirculation of waters leaving the NWC. The PI suggests that the two fronts observed within the Subpolar Frontal region reflect, through westward Rossby wave propagation, the two fracture zones of the Mid-Atlantic Ridge through which the Subpolar Front waters flow. Available data is from Eulerian moorings, Lagrangian floats, hydrographic surveys, acoustic Doppler current profiler surveys, and satellite altimetry. Some rotating table experiments will be performed.