Dynamics of the Antarctic Mesosphere and Lower Thermosphere

这是一个跨国的，多。调查员，项目分析一个 现有光学和雷达数据集的多样性， 70.100千米高空的大气气候 南极洲，并建立一个该地区动态的模型 南极大气层的观测结果 的 目的是描述南极洲的气象特征， 中层和低热层（MALT），并确定它是如何 与互补的北极地区相比（也不同）。 重点将放在了解风和潮汐。 特别令人感兴趣的专题是研究的高度和 湍流扩散系数的季节性纬度结构， 重力波和潮汐破碎，特别是对 评价氮氧化物（NO）的可及性， 高磁纬高能粒子降水 从高层大气到平流层 催化破坏臭氧层。

This is a multinational, multi.investigator, project to analyze a diversity of existing optical and radar data sets describing the climatology of the atmosphere at 70.100 kilometers over Antarctica, and to develop a model of the dynamics of this region of the antarctic atmosphere based on the observations. The objective is to characterize the meteorology of the antarctic mesosphere and lower thermosphere (MALT), and to determine how it compares with (and differs from) the complementary arctic region. The emphasis will be placed on understanding the winds and tides. Of particular topical interest are studies of the height and seasonal.latitude structures of turbulent diffusivities implied by gravity wave and tidal breaking, with a particular view towards evaluating the accessibility of nitrogen oxide (NO), produced by energetic particle precipitation in the high magnetic latitude upper atmosphere, to stratospheric levels where it can catalytically destroy ozone.