A Modeling Investigation of Ducted Gravity Waves in the Mesosphere/Lower Thermosphere (MLT) Region: Energetics, Airglow Response, and Relation to "Wall" Events

中层/低热层 (MLT) 区域管道重力波的建模研究：能量学、气辉响应以及与“壁”事件的关系

• 批准号: 0408407
• 负责人: Michael Hickey
• 金额: --
• 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: 2004
• 资助国家: 美国
• 起止时间: 2004-07-15 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0408407&HistoricalAwards=false
• 关键词: Modeling; Investigation; Ducted; Gravity; Waves

A model to quantify the stead-state propagation of gravity waves, in particular ducted gravity waves, is expanded to investigate the time dependence of wave propagation and the impact of these waves on airglow in the mesosphere. The research is expected to establish, for the first time, a coherent theory for the creation of "Wall Events" sometimes seen in OH airglow images as large amplitude, distinct, airglow brightness gradients. The model to be used is an established Spectral Full-Wave model, which is adapted to treat transient wave phenomena in the time domain.

扩展了一个定量化重力波，特别是导管重力波的定态传播的模型，以研究波传播的时间依赖性以及这些波对中间层大气辉光的影响。这项研究有望首次建立一个连贯的理论，用于创造有时在OH气辉图像中被视为大幅度、明显的气辉亮度梯度的“墙事件”。所使用的模型是已建立的频谱全波模型，适用于在时间域中处理暂态波现象。