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).

这项研究是研究平流层和中层之间冬季极性区域的垂直耦合，并研究在平流层强烈的斜压条件下极性冬季中层严重干扰的机制。 该项目将通过从卫星观测值以及广泛的地面观测结果结合使用平流层和中层的全球温度测量来详细探讨和研究这些斜视结构。 此外，将采用经验和数值模型来重现观察到的现象，并对垂直耦合，行星波活动和机械过程产生更完整的物理理解。基于地面的测量将包括北极和南极的干涉测量值的雷利激光雷达测量和羟基温度。 除了大气观测外，PI还将其观察结果与大气社区模型（例如全大气气候社区模型（WACCM））相结合。