WOCE Hydrographic Program Line S4 in the Indian Ocean Sector of the Southern Ocean

这是一项关于印度洋南部深水和底层水形成的合作研究，是世界海洋环流实验(WOCE)印度洋考察(IOE)的一部分。来自六个机构的六个PI将沿着南纬60度，从东经约20度到东经约120度，完成世界海洋经济委员会水道测量方案线S-4的最后一段。该项目旨在探测科尔盖伦高原的细微差别，这是底层水域的重要水文分界线。除了水文学，该部分还将包括标准示踪剂测量，以及氟氯化碳、氦、氚和碳-14，所有这些都符合WOCE标准。除了纬向线外，还将在东经50度和东经96度两次到大陆架进行远足，以调查南极坡锋及其相关的西向流。还将在几个地点部署消耗性海流系泊设备，以在一年内测量沿科尔盖伦高原斜坡和侧翼的海流。在这一部分，私人投资机构将提供总体的科学领导，目前的部分将与俄勒冈州立大学直接合作。

9415965NowlinThis is a collaborative study of deep and bottom water formation in the southern sector of the Indian Ocean, as part of the World Ocean Circulation Experiment (WOCE) Indian Ocean Expedition (IOE). Six PIs from six institutions will complete the final segment of the WOCE Hydrographic Program Line, S-4, along 60 degrees South from about 20 degrees East to about 120 degrees East. The program is designed to detect subtle differences across the Kerguelen Plateau, an important hydrographic boundary for bottom waters. In addition to hydrography, the section will include standard tracer measurements, as well as CFCs, Helium, Tritium, and Carbon-14, all to WOCE standards. In addition to the zonal line, two excursions to the shelf at about 50 degrees East and 96 degrees East will be made to investigate the Antarctic Slope Front and its associated westward current. Expendable current moorings will also be deployed at several locations to measure, for one year, the current along the slope and on the flanks of the Kerguelen Plateau. In this component, the PIs will provide the overall scientific leadership, and the current component in direct collaboration with Oregon State University.