Analysis of the WOCE ACM-1 Array: A Decadal Record of DWBC Variability East of the Bahamas

WOCE ACM-1 阵列分析：巴哈马东部 DWBC 变化的十年记录

• 批准号: 9811374
• 负责人: Thomas Lee
• 金额: $ 27.5万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9811374&HistoricalAwards=false
• 关键词: Analysis; WOCE; ACM; Array; Decadal

In this project, the Investigators will complete the processing, analysis, interpretation, and publication of data from a long term array of current meter moorings that was maintained at 26.5 degrees North for the 11 year period 1986 1997 in the western boundary system of the Atlantic Ocean. The overall focus will be on the nature and variability of deep recirculation, current structure and transport on interannual time scales in relation to large scale forcing changes such as the North Atlantic Oscillation (NAO). Investigators will collaborate with NOAA scientists at the Atlantic Oceanographic and Meteorological Laboratories. Specific objectives are to: 1 . Determine the mean transport structure east of the Bahamas, including the western boundary currents and deep recirculations extending to 600 km offshore 2. Investigate variability on interannual time scales and its relationship to basinwide wind forcing and changes in high latitude convective activity related to the NAO, 3. Improve estimates of the meridional ocean heat transport in the subtropical Atlantic and its annual and interannual variability using the current meter data along with Florida Current and interior XBT (EXpendable BathyThermograph) section data, and 4. Compare the current meter results with high resolution general circulation models.

在该项目中，研究人员将完成对来自大西洋西部边界系统 1986 年至 1997 年 11 年间保持在北纬 26.5 度的长期海流计系泊装置数据的处理、分析、解释和发布。总体重点将是与北大西洋涛动（NAO）等大规模强迫变化相关的年际时间尺度上的深层再循环、海流结构和输送的性质和变化。研究人员将与美国国家海洋和大气管理局大西洋海洋和气象实验室的科学家合作。具体目标是： 1．确定巴哈马以东的平均输送结构，包括西部边界流和延伸至离岸 600 公里的深层再循环 2. 研究年际时间尺度的变化及其与流域风力强迫的关系以及与 NAO 相关的高纬度对流活动的变化， 3. 使用海流表数据以及佛罗里达洋流和内陆，改进对副热带大西洋经向海洋热输送及其年度和年际变化的估计 XBT（EXpendable BathyThermograph）剖面数据，以及 4. 将当前测量仪结果与高分辨率大气环流模型进行比较。