North Atlantic Subpolar Gyre CFC Measurements in the WOCE/ACCE

在这个项目中，PI将参加1997年春季的水文调查，作为大西洋环流和气候实验（ACCE）的一部分，这是美国对国际世界海洋环流实验（WOCE）的贡献。这次调查将涵盖格陵兰岛和亚速尔群岛之间北大西洋亚极地环流的中部/东部盆地。具体而言，项目将支持收集和分析水样中海洋氟氯化碳示踪剂F-11、F-12和F-113的含量，以便利用它们研究水团的形成和循环。具体研究包括确定冬季对流的位置和深度，以及表征地表水进入深层环流的速率和途径。氟氯化碳衰变的时间尺度补充了氦-3和氚的时间尺度，为北大西洋环流模式中的这些过程提供了更严格的约束。

9531884 Weiss In this project the PI will participate in the Spring, 1997 hydrographic survey as part of the Atlantic Circulation and Climate Experiment (ACCE), a U.S. contribution to the International World Ocean Circulation Experiment (WOCE). The survey will cover the central/eastern basin of the sub polar gyre in the North Atlantic between Greenland and the Azores. Specifically, the PI will provide support to collect and analyze water samples for their content of oceanic chlorofluorocarbon (CFC) tracers F-11, F-12, and F-113 in order to use them to study water mass formation and circulation. Specific studies include identification of location and depths of wintertime convection , and characterization of the rates and pathways for the communication of surface water into the deep circulation. The time scales of CFC decay complement those of Helium-3 and Tritium in providing firmer constraints on these processes in models of the North Atlantic circulation.