CAREER: Mesospheric Dynamics during Stratospheric Warming Events

职业：平流层变暖事件期间的中层动力学

• 批准号: 0449864
• 负责人: Gulamabas Sivjee
• 金额: $ 44.66万
• 依托单位: Embry-Riddle Aeronautical University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0449864&HistoricalAwards=false
• 关键词: CAREER; Mesospheric; Dynamics; during; Stratospheric

Dynamical and thermal changes in the mesosphere driven by sudden stratospheric warming events are investigated using a ten-year database of ground-based spectroscopic data from the pole regions and satellite data from lower latitudes. The observations are compared with the Thermosphere-Ionosphere-Exosphere Global Circulation Model (TIEGCM) to untangle the drivers associated with amplification of the four-day mesospheric tidal wave, breakdown of the polar vortex, and mesospheric cooling during periods of stratospheric warming. The required data analysis and interpretation is brought into the graduate and undergraduate classrooms as special projects and as new classes. Special outreach in space physics education includes the collaboration of Bethune-Cookman College students in the research.

本文利用一个由极地地区地基光谱数据和低纬度卫星数据组成的十年数据库，研究了平流层突然变暖事件驱动的中间层动力和热变化。将观测结果与热层-电离层-外逸层全球环流模式（TIEGCM）进行比较，以解开与4天中间层潮汐波放大、极地涡旋破裂和平流层变暖期间中间层冷却相关的驱动因素。所需的数据分析和解释作为特殊项目和新课程引入研究生和本科生课堂。空间物理教育的特别拓展包括白求恩-库克曼学院学生在研究中的合作。