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模拟研究的继续进行，该研究旨在了解中间层和低层热层（MLT）区域潮汐变化的来源。稳态全球尺度波浪模式将通过若干次对水汽、云和潜热对太阳日照的吸收对大气潮汐的强迫的基本物理的升级而得到改进。基于非线性时间依赖方法的谱动力学模型将用于原始方程的解，以捕获典型的2天、5天和10天行星波事件，以了解次波的激发及其对潮汐变化的影响。