Decadal Variability of Subtropical Mode Water, Gulf Stream Separation and Large-Scale Atmospheric Fields in the N. Atlantic Ocean from 1954-1999

20世纪90年代世界海洋环流实验（WOCE）期间的最新观测结果将用于延长现有的北大西洋环流时间序列。目的是检查副热带模态水、墨西哥湾流的位置和是否继续与大尺度大气热、浮力强迫和北大西洋涛动指数共同变化。待验证的反馈假设是，墨西哥湾流分离点受到拉布拉多海水向南输送的变率的影响，从而改变风暴架和大气强迫，从而对拉布拉多海水产生负阻尼。

Joyce / OCE-9818465Recent observations for the World Ocean Circulation Experiment (WOCE)period, the 1990s, will be used to extend an existing time series of the NorthAtlantic Circulation. The goal is to examine if the Subtropical Mode water, theGulf Stream position and continue to co-vary with large scale atmospheric heatand buoyancy forcing and a North Atlantic Oscillation index. The feedbackhypothesis to be tested is that the Gulf Stream separation point is influenced byvariability of the southward transport of Labrador Sea Water which then alterstorm racks and atmospheric forcing so as to negatively damp Labrador SeaWater production.