Investigations of Katabatic Wind and its Interaction with Sea Ice

下降风及其与海冰相互作用的研究

• 批准号: 9413879
• 负责人: Gerd Wendler
• 金额: $ 40.91万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-01-01 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9413879&HistoricalAwards=false
• 关键词: Investigations; Katabatic; Wind; its; Interaction

9413879 Wendler This project is an internationally collaborative (U.S.-French- Australian) study of katabatic winds along the coast of East Antarctica, based on two lines of automatic weather stations, one from the French station inland to Dome C, the other along the coast. The coastal array includes stations at Cape Denison and Port Martin, which have recorded the highest average surface wind speeds on the globe. These winds drive the sea ice offshore, and are responsible for extremely high heat fluxes from the ocean to the atmosphere. Satellite-based active microwave imagery (Synthetic Aperture Radar) will be combined with the observed meteorological data to analyze the formation persistence and size of offshore polynyas as a function of wind speed. The coastal array of weather stations will be augmented by three additional instruments, and the University of Alaska receiving station for Synthetic Aperture Radar data will be utilized to downlink images of East Antarctica. These images will be supplemented with images from the Australian receiving station in Hobart, and, when it becomes operational, from the Radarsat receiving station at McMurdo. ***

9413879 Wendler该项目是一个国际合作项目（美国-法国-澳大利亚）对东南极洲沿海沿着下降风的研究，以两条自动气象站线为基础，一条从法国内陆站到圆顶C，另一条沿沿着海岸。 沿海阵列包括丹尼森角和马丁港的台站，这两个台站记录了地球仪上最高的平均表面风速。 这些风将海冰推向近海，并导致从海洋到大气的极高热通量。 卫星主动微波成像（合成孔径雷达）将与观测到的气象数据相结合，分析作为风速函数的近海冰穴的形成、持续性和大小。 沿海气象站阵列将增加三台仪器，阿拉斯加大学合成孔径雷达数据接收站将用于东南极洲图像的下行传输。 这些图象将由澳大利亚霍巴特接收站提供的图象补充，并在麦克默多雷达卫星接收站投入使用后提供。 ***