Weddell Gyre Physical Oceanographic Studies

威德尔环流物理海洋学研究

• 批准号: 9024755
• 负责人: Arnold Gordon
• 金额: $ 114.56万
• 依托单位: Columbia 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: 1991-07-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9024755&HistoricalAwards=false
• 关键词: Weddell; Gyre; Physical; Oceanographic; Studies

The proposed work is the lead project in an integrated research program into the oceanographic structure of the western Weddell Sea. It is to be carried out from an ice camp jointly occupied by U.S. and USSR scientists from February to June 1992. This project concerns the large-scale oceanographic circulation and the variability of the Weddell Sea boundary current, and how these affect and are affected by the regional water mass formation and modification processes. The Weddell Sea may be divided into three regions on the basis of the energy exchange mode. The warm regime occurs in the east where the intrusion of warm circumpolar deep water keeps the water temperature nea +1 deg C. The cold regime occurs in the center, where deep water is overlain by a thick near freezing mixed layer. In both regions however enough heat is seasonally carried to the sea ice to melt it completely. In the western region, the sea ice cover does not melt, and it is expected that the thermodynamics processes will be different. Hydrographic data, coupled with the current meter observations, chemical tracer experiments, turbulent flux measurements, and sea ice dynamics that are part of this project, will provide a unique picture of the Weddell Sea continental slope processes.

拟议的工作是一个综合研究的领先项目 研究威德尔西部海洋结构的计划 海 它将在一个冰营地进行， 1992年2月至6月，美国和苏联科学家进行了一项研究。 这 项目涉及大规模海洋环流， 威德尔海边界流的变化，以及如何 这些影响并受区域水团的影响 形成和修饰过程。 威德尔海可能是 根据能量交换分为三个区域 模式 暖区出现在东部， 温暖的环极深水使水温保持在nea +1 ℃的 冷态发生在中心，那里有深水 上面覆盖着一层厚厚的接近冰点的混合层。 在这两个地区 然而，季节性地将足够的热量带到海冰上融化， 它完全。 在西部地区，海冰覆盖面积 融化，预计热力学过程将 与众不同 水文数据，加上海流计 观测，化学示踪实验，湍流通量 测量和海冰动力学是这个项目的一部分， 将提供一幅威德尔海大陆的独特图片 斜坡过程