CEDAR: Investigation of Baroclinic Disturbances in the Polar Wintertime Middle Atmosphere

CEDAR：极地冬季中层大气斜压扰动的调查

• 批准号: 0940174
• 负责人: Jeffrey Thayer
• 金额: $ 42.15万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-01-15 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0940174&HistoricalAwards=false
• 关键词: CEDAR; Investigation; Baroclinic; Disturbances; Polar

The research is to study vertical coupling in the wintertime polar regions between the stratosphere and mesosphere and to investigate the mechanisms leading to significant disturbances of the polar wintertime mesosphere during strong baroclinic conditions in the stratosphere. The project will explore and study these baroclinic structures in detail by utilizing global temperature measurements of the stratosphere and mesosphere from satellite observations combined with extensive ground-based observations. Furthermore, empirical and numerical models will be employed to reproduce the observed phenomena and develop a more complete physical understanding of the vertical coupling, planetary wave activity, and mechanistic processes. The ground-based measurements will include Rayleigh LIDAR measurements from Greenland and hydroxyl temperatures from interferometric measurements in Arctic and Antarctic. In addition to the atmospheric observations, the PIs will combine their observations with atmospheric community models such as the Whole-Atmosphere Climate Community Model (WACCM).

这项研究的目的是研究冬季极地地区平流层和中间层之间的垂直耦合，并调查在平流层强斜压条件下导致极地冬季中间层显著扰动的机制。 该项目将利用卫星观测所得的平流层和中间层全球温度测量值，结合广泛的地面观测，详细探索和研究这些斜压结构。 此外，经验和数值模型将被用来再现所观察到的现象，并开发一个更完整的物理理解的垂直耦合，行星波活动，和机械过程。地面测量将包括格陵兰的瑞利激光雷达测量和北极和南极干涉测量的羟基温度。 除大气观测外，研究所还将联合收割机将其观测结果与大气群落模式（如全大气气候群落模式）相结合。