Tidal Variability in the Mesosphere and Thermosphere

中间层和热层的潮汐变化

• 批准号: 0097829
• 负责人: Jeffrey Forbes
• 金额: $ 32.25万
• 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: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0097829&HistoricalAwards=false
• 关键词: Tidal; Variability; Mesosphere; Thermosphere

The award would support the continuation of a numerical modeling study that seeks to understand the sources of tidal variability in the mesosphere and lower thermosphere (MLT) region. The steady state Global Scale Wave Model would be improved through several upgrades of the basic physics in the forcing of atmospheric tides by solar insolation absorption by water vapor, clouds, and latent heating. A Spectral Dynamics Model based upon a nonlinear time dependent approach to the solution of the primitive equations would be exercised to capture the typical 2-day, 5-day, and 10-day planetary wave events to understand the excitation of secondary waves and their impact upon tidal variability.

该奖项将支持一项数值建模研究的延续，该研究旨在了解中层和较低热球（MLT）区域中潮汐变异性的来源。 稳态全球尺度波模型将通过基本物理学的几次升级在通过水蒸气，云和潜在加热来吸收大气潮中的基本物理学中进行多次升级。 将采用基于非线性时间依赖性方法的光谱动力学模型来捕获典型的2天，5天和为10天的行星波事件，以了解次级波的激发及其对潮汐变异性的影响。