Observing and Understanding the Dynamics of the Mesosphere and Lower Thermosphere

观察和了解中间层和低层热层的动力学

• 批准号: 227519-2013
• 负责人: Ward, William
• 金额: $ 1.97万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=524003
• 关键词: Observing; Understanding; Dynamics; Mesosphere; Lower

Understanding the Sun/Earth system is important so that future changes to the environment that we live in can be predicted and planned for. My research advances our knowledge of the mesosphere and lower thermosphere (MLT, ~50 -150 km), a poorly understood but fascinating region in the Earth's atmosphere. It acts as a buffer between the lower/middle atmosphere (a fluid capable of many types of motion) and the near-Earth Space Environment (an ionized medium whose movement is constrained and directly forced by external influences associated with the Sun). This region absorbs the energy and momentum associated with upward moving waves (tides, gravity waves and planetary waves) forced below and radiates to space much of the Solar energy absorbed at higher altitudes. The details of how this is accomplished are still unclear.

了解太阳/地球系统是很重要的，这样我们就可以预测和计划未来我们生活的环境的变化。我的研究推进了我们对中间层和低热层（MLT，~50 - 150 km）的了解，这是地球大气中一个鲜为人知但令人着迷的区域。它是低层/中层大气（一种能够进行多种运动的流体）和近地空间环境（一种电离介质，其运动受到与太阳有关的外部影响的限制和直接影响）之间的缓冲。这个区域吸收与向上运动的波（潮汐，重力波和行星波）相关的能量和动量，并将在较高高度吸收的大部分太阳能辐射到太空。如何实现这一点的细节仍不清楚。