Na Lidar Studies of the Antarctic Upper Atmosphere at the Amundsen-Scott South Pole Station

该项目的目的是安装和操作一个钠 在南极站的激光雷达，研究动力学行为， 上层大气。 激光雷达可以探测到钠层， 大约90公里的高度，通过测量高度， 层的密度决定了上层的垂直运动 气氛 最近人们对这方面的兴趣有所增加 由于该研究者发现， 斯瓦尔巴特群岛上空的钠含量急剧下降了50倍 1987年7月在北极 造成这一损失的原因是 未知，重要的是要确定是否类似 现象发生在南极洲。 结果，特别是对大气重力波的研究， 可能会揭示一些动力学特性的 南极臭氧空洞 这项研究是由极地部联合支持的。 方案和大气科学司

The purpose of this project is to install and operate a sodium lidar at the South Pole Station to study the dynamical behavior of the upper atmosphere. The lidar can detect the sodium layer at about 90 kilometers altitude, and by measuring the height and density of the layer determine the vertical motion of the upper atmosphere. There has been a recent increase in interest in this subject due to the discovery, by this investigator, that there was a dramatic decrease, by a factor of 50, in sodium above Svalbard in the arctic during July of 1987. The reason for this loss is unknown, and it is important to determine whether a similar phenomenon occurs over the antarctic. The results, particularly the study of atmospheric gravity waves, may shed some light on the dynamical characteristics of the antarctic ozone hole. This research is jointly supported by the Division of Polar Programs and the Division of Atmospheric Sciences