Collaborative Research: Export Pathways from the Subpolar North Atlantic; with S. Lozier, Duke

提案编号0136215该项目将收集RAFOS浮标数据、水文数据和测高，以更好地了解离开亚极区水域的航道。顺序释放的声学跟踪RAFOS浮标将部署在拉布拉多海西部边界的深西部边界流(DWBC)的拉布拉多海平面。这些花车将在三年内按季节释放，并将在佛兰德海角附近的道路上通过交叉口时进行跟踪。这些观测还将被用来解决现有的关于亚极地地区通过DWBC输出新通风的水的理论与最近的漂流轨迹之间的明显矛盾，这些漂流轨迹显示轮廓浮标沿着副极地-副热带涡旋边界向东转向。新的数据还将被用来解决与狭窄的DWBC路径的结构、拉布拉多海水路径的时间变异性和间歇性、深海通风的程度以及这种通风的时间尺度有关的假设。

Proposal Number 0136215Bower / LozierThis project will collect RAFOS float data, hydrographic data and altimetry to pursue a greater understanding of the pathways of waters exiting the subpolar regions. Sequentially released, acoustically-tracked, RAFOS floats will be deployed at the Labrador Sea Water level in the Deep Western Boundary Current (DWBC) along the western boundary of the Labrador Sea. The floats will be released on a seasonal basis for three years and they will be tracked as they transit through the junction in pathways near Flemish Cap. These observations will also be used to address an apparent contradiction between existing theory of the export of newly ventilated waters from the sub-polar regions via the DWBC and recent drifter tracks that show the profiling floats turning eastward along the subpolar-subtropical gyre boundary. The new data will also be used to address hypothesis related to the structure of the narrow DWBC path, the temporal variability and intermittency in Labrador Sea Water pathways, the extent to which the deep ocean is ventilated, and the time scale of that ventilation.