Direct Observation of North Brazil Current Ring Structure, Evolution, and Core Water Dispersal

直接观测巴西北部海流环结构、演化和核心水扩散

• 批准号: 9729765
• 负责人: David Fratantoni
• 金额: $ 57.2万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-01 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9729765&HistoricalAwards=false
• 关键词: Direct; Observation; North; Brazil; Current

A multi-institution field experiment is designed to study the spatial and temporal evolution of North Brazil Current (NBC) retroflection and the separation of rings from the retroflection. The physical structure of the rings after separation from the NBC, including their sizes, vertical structure, horizontal swirl velocities and the volume of South Atlantic water they trap and transport will be determine. The observations will combine complementary techniques: an inverted echo sounder array within satellite altimeter tracklines, current, temperature and salinity mooring, Lagrangian surface drifters and subsurface floats and shipboard surveys.

设计了一个多机构的现场实验来研究巴西北部海流(NBC)反射的时空演变以及环与反射的分离。将确定从NBC分离后环的物理结构，包括它们的大小、垂直结构、水平漩涡速度以及它们捕获和输送的南大西洋水的体积。观测将结合互补技术：卫星高度计轨迹线内的反向回声测深仪阵列、海流、温度和盐度系泊、拉格朗日海面漂浮物和次海面漂浮物以及船上调查。