Antarctic Circumpolar Current: Choke Point Monitoring with Bottom Pressure Gauges

南极绕极流：使用底部压力表监测阻塞点

• 批准号: 9012443
• 负责人: R. Dale Pillsbury
• 金额: $ 77.06万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9012443&HistoricalAwards=false
• 关键词: Antarctic; Circumpolar; Current; Choke; Point

A method of measuring and monitoring the transport of the Antarctic Circumpolar Current has been developed and tested in the Drake Passage. Differences in pressure measured by deep pressure gauges on either side of a current provide a proxy for the transport. This effort will consist of the deployment of a suite of such pressure gauges south of Australia and south of Africa. A total of 6 sites will be instrumented for several years. A related deployment will be made by scientists from the UK in Drake Passage enabling an analysis of the variations in transport at the three choke points around the Southern Ocean. These data will be useful in determining the interbasin transport, an objective of the World Ocean Circulation Experiment (WOCE).

一种测量和监测南极绕极流输送的方法已经开发出来，并在德雷克海峡进行了试验。电流两边的深度压力计测量到的压力差为传输提供了一个替代指标。这项工作将包括在澳大利亚南部和非洲南部部署一套这种压力计。总共有6个站点将在几年内安装仪器。来自英国的科学家将在德雷克航道进行相关部署，以分析南大洋周围三个阻塞点的交通变化。这些数据将有助于确定世界海洋环流实验(WOCE)的目标之一--跨流域输送。