Recent observations for the World Ocean Circulation Experiment (WOCE) period, the 1990s, will be used to extend an existing time series of the North Atlantic Circulation. The goal is to examine if the Subtropical Mode water, the Gulf Stream position and continue to co-vary with large scale atmospheric heat and buoyancy forcing and a North Atlantic Oscillation index. The feedback hypothesis to be tested is that the Gulf Stream separation point is influenced by variability of the southward transport of Labrador Sea Water which then alter storm racks and atmospheric forcing so as to negatively damp Labrador Sea Water production.
