Evolution of Sea Ice Characteristics, Cloud Properties and Radiation Fluxes During the Autumnal Freezing of the Beaufort Sea Coastal Waters

[9320938] Curry本项目是一项综合实验和建模工作，旨在了解和解释波弗特海沿岸水域秋季结冰期间海冰特征、云特性和辐射通量的演变。它将在波弗特和北极海洋实验（BASE）的科学背景下进行，这是一个加拿大项目，其目标是提高对加拿大北极天气系统的了解，其重点是麦肯齐河的水文平衡。该项目将利用NCAR的C-130飞机，BASE将提供大量的协同观测设施。直接的飞机观测将由卫星数据补充，以扩展分析的时间和空间尺度，并将用于解释和验证卫星检索算法。三维大气中尺度模式将用于解释海冰覆盖的时空演变和大气边界层特征。一个耦合的海冰模式将用于解释海冰响应大气强迫的物理过程。研究结果将增进对大气对地表辐射平衡的调制以及辐射平衡对沿海水域冻结的影响的认识。＊＊＊

9320938 Curry This project is an integrated experimental and modeling effort to understand and interpret the evolution of sea ice characteristics, cloud properties, and radiation fluxes during the autumnal freezing of the coastal waters of the Beaufort Sea. It will carried out in the scientific context of the Beaufort and Arctic Seas Experiment (BASE), a Canadian program whose objective is an improved understanding of weather systems in the Canadian Arctic, and whose focus is the hydrologic balance of the Mackenzie River. This project will make use of the NCAR C-130 aircraft, and BASE will provide substantial synergistic observational facilities. The direct aircraft observations will be supplemented by satellite data to extend the time and space scales of the analyses, and will be used to interpret and validate satellite retrieval algorithms. A three-dimensional mesoscale model of the atmosphere will be used to interpret the temporal and spatial evolution of the sea ice cover and the atmospheric boundary layer characteristics. A coupled sea ice model will be used to interpret the physical processes of the sea ice that respond to atmospheric forcing. The result of the research will be an improved understanding of the atmospheric modulation of the surface radiation balance and the effect of the radiation balance on the freezing of coastal waters. ***