South Atlantic Interocean Linkages Study (SAILS)

南大西洋海洋间联系研究 (SAILS)

• 批准号: 0118363
• 负责人: Ricardo Matano
• 金额: $ 48.16万
• 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: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0118363&HistoricalAwards=false
• 关键词: South; Atlantic; Interocean; Linkages; Study

0118363Matano/OSUThe purpose of the is project is to use numerical modeling to examine the routes by which the upper return flow in the South Atlantic carries heat and salt across the basin and the role that mesoscale eddies play in this transport. First, diagnostic studies of existing global and Atlantic simulations will be made. This will be followed by process studies designed to test hypotheses about the paths of Pacific and Indian Ocean upper thermocline waters through the South Atlantic to the tropics. The project's broad goals are: (1) to understand how changes in magnitude of southern sources of water, the Antarctic Circumpolar Current and the Agulhas Current, affect the magnitude and relative composition of South Atlantic upper ocean export to the tropics, (2) to understand the mechanisms that regulate the mean circulation and variability of the subtropical gyre and their linkage to interocean exchanges, and (3) to determine the sensitivity of the South Atlantic circulation to changes in wind forcing in the southern hemisphere.

IS项目的目的是利用数值模拟来研究南大西洋的高空回流通过盆地输送热量和盐分的路径，以及中尺度涡旋在这种输送中所起的作用。首先，将对现有的全球和大西洋模拟进行诊断性研究。随后将进行过程研究，旨在检验关于太平洋和印度洋上层温跃层水通过南大西洋到达热带的路径的假设。该项目的广泛目标是：(1)了解南方水源、南极绕极流和阿古拉斯流的大小变化如何影响南大西洋上层海洋向热带出口的大小和相对构成；(2)了解调节副热带环流平均环流和变异性的机制及其与大洋间交换的联系；(3)确定南大西洋环流对南半球风强迫变化的敏感性。