ANZFLUX (Antarctic Zone Flux Experiment) Modeling and Analysis

ANZFLUX（南极区通量实验）建模与分析

• 批准号: 9615279
• 负责人: Douglas Martinson
• 金额: $ 14.9万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 2000-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9615279&HistoricalAwards=false
• 关键词: ANZFLUX; Antarctic; Zone; Flux; Experiment

*** 9615279 Martinson The proposed work is an extended analysis of a data set generated as part of an integrated research program ("Anzflux") into the oceanographic structure of upper mixed layer of the eastern Weddell Sea. It was carried out from the RVIB Nathaniel B. Palmer in the austral winter of 1994. The work proposed here concerns the integration of hydrographic and geochemical tracer data to determine the three-dimensional oceanic structure on various spatial scales for the validation of oceanic models, and specifically to determine the magnitude of the heat flux from the ocean to the atmosphere. The eastern Weddell Sea is a region where a warm regime, defined by the intrusion of warm circumpolar deep water with temperatures near +1 deg C, and a cold regime exist side by side. The cold regime occurs to the west, 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. The specific objective of the proposed work is to improve our understanding of how the intense mixing events associated with frequent storms affect the structure and seasonal evolution of the upper layers of the ocean and the sea ice cover. The structure of the upper layers in turn affects the stability of the deeper ocean, and determines the depth of convection and the longer term variability in temperature and salinity of the deep ocean. *** ??

*** 9615279 Martinson提出的工作是对作为综合研究计划（“ Anzflux”）的一部分生成的数据集的扩展分析，以进入韦德尔海的上层混合层的海洋结构。 它是从RVIB Nathaniel B. Palmer在1994年冬季从RVIB Nathaniel B. Palmer进行的。此处提出的工作涉及水文和地球化学示踪剂数据的整合，以确定各种空间尺度上的三维海洋结构，以验证海洋模型的验证，以确定从海洋到大气层的热量量的大小。 东韦德尔海是一个地区，温暖的状态是由温度接近+1摄氏度C的温度侵入温度的深水所定义的，并且并排存在寒冷的状态。 西部发生了冷的状态，那里的深水被厚厚的近冻结混合层覆盖。然而，在这两个地区，季节性的热量都充满了季节性，以将其完全融化。 拟议工作的具体目标是提高我们对与频繁风暴相关的激烈混合事件的理解，影响海洋上层和海冰覆盖的结构和季节性演变。 上层的结构反过来影响了更深的海洋的稳定性，并决定了对流的深度以及深海温度和盐度的长期变化。 *** ??