CEDAR: Temperature Variability in the High-Latitude Mesosphere: Normal Mode Oscillations and Wave-Wave Interactions

CEDAR：高纬度中间层的温度变化：简正模态振荡和波-波相互作用

• 批准号: 9714933
• 负责人: Patrick Espy
• 金额: $ 10万
• 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: 1998
• 资助国家: 美国
• 起止时间: 1998-01-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9714933&HistoricalAwards=false
• 关键词: CEDAR; Temperature; Variability; Latitude; Mesosphere

The investigator quantifies the variability induced in the high-latitude mesospheric airglow and temperature by planetary-scale waves, and determines the nature of wave signatures by quantifying their relationship to variations of gravity-wave flux and tidal amplitudes. In conjunction with observations at Stockholm University, he is continuing a measurement program of high latitude dynamics and chemistry, extending the existing data base of hydroxyl radiance and temperature where normal mode periodicities and their transience is observed. In addition, he is analyzing measurements to identify the time history of long-period temperature and composition variations in the mesosphere.

研究人员量化了行星尺度波在高纬度中层气辉和温度中引起的变化，并通过量化波特征与重力波通量和潮汐幅度变化的关系来确定波特征的性质。 结合斯德哥尔摩大学的观测，他正在继续进行高纬度动力学和化学测量项目，扩展现有的羟基辐射和温度数据库，在其中观察到正常模式周期性及其瞬态。 此外，他正在分析测量结果，以确定中间层长期温度和成分变化的时间历史。