Collaborative Research: A Three-Dimensional and Time Dependent Study of the Katabatic Winds at Terra Nova Bay

合作研究：特拉诺瓦湾下降风的三维和时间相关研究

• 批准号: 9218544
• 负责人: Thomas Parish
• 金额: $ 5.67万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218544&HistoricalAwards=false
• 关键词: Collaborative; Research; Three; Dimensional; Time

9218544 Parish This project is a one-year continuation of a successful investigation into the antarctic surface and boundary layer wind field, with specific emphasis on the extremely strong down-slope katabatic winds in the vicinity of Terra Nova Bay. The outward flowing surface air is an integral part of the meridional circulation, together with inflow and convergence aloft, and generally sinking motion over the continent. The pattern of katabatic winds over the sloping ice sheet is highly irregular, with air converging into several narrow coastal regions to produce locally what are recognized as the strongest and most persistent surface winds in the world. Known examples are at Cape Denison and Port Martin in Adelie Land (facing Australia), and in Terra Nova Bay on the western coast of the Ross Sea. Specific tasks to be undertaken as part of this project are to complete the kinematic, dynamic, and climatological analysis of specific katabatic events. Automatic weather station observations from the vicinity of Terra Nova Bay, satellite imagery collected at McMurdo Station, and synoptic weather analyses from the Australian Bureau of Meteorology will be examined for the period of 1988 to 1991 to determine the broadscale conditions associated with variations in the katabatic wind regime at Terra Nova Bay. ***

9218544教区该项目是一个为期一年的成功调查的南极表面和边界层风场的延续，特别强调在Terra Nova湾附近的极强的下坡下降风。 向外流动的地面空气是经向环流的一个组成部分，与高空的流入和会聚以及大陆上空的一般下沉运动一起。 倾斜冰盖上的下降风模式非常不规则，空气汇聚到几个狭窄的沿海地区，在当地产生被认为是世界上最强和最持久的地面风。 已知的例子是在丹尼森角和马丁港在阿德利地（面对澳大利亚），并在特拉诺瓦湾的西海岸的罗斯海。 作为该项目的一部分，要承担的具体任务是完成特定的下降事件的运动学、动力学和气候学分析。 将对1988年至1991年期间Terra Nova湾附近的自动气象站观测结果、在麦默多站收集的卫星图像和澳大利亚气象局的天气分析进行审查，以确定与Terra Nova湾下降风态变化有关的大尺度条件。 ***