CEDAR: Upgrade the Optical Facilites at Thule and Calgary

这个雪松计划的目的是通过研究大气区域的耦合、能量学和动力学来更好地了解高层大气。这笔赠款支持位于格陵兰岛图勒空军基地的密歇根大学光学天文台为支持雪松计划而进行的仪器升级和数据分析。图勒光学设施位于独特的位置，可以通过观测季节在冬季一天24小时测量地磁极冠深处的大气状态变量。通过使用若干光学仪器在高光谱分辨率下观测各种光学发射特征，对极冠内的热层和中间层参数进行了测量。来自图勒光学设施的数据过去曾被用于几个雪松项目。这笔赠款将有助于确保为维持和增强这一独特设施的科学能力提供支持。

This CEDAR program is aimed at achieving a better understanding of the upper atmosphere through studies of the coupling, energetics, and dynamics of atmospheric regions. This grant supports instruments upgrade and data analysis from the University of Michigan optical observatory at Thule Air Force Base in Greenland in support of the CEDAR program. The Thule optical facility is uniquely situated to measure atmospheric state variables in the deep geomagnetic polar cap with 24-hour a day during the winter by observing season. Measurements are made of thermospheric and mesospheric parameters within the polar cap by observing various optical emission features at high spectral resolution using several optical instruments. Data from the optical facility at Thule have been used for several CEDAR programs in the past. This grant will help assure support to maintain and augment the scientific capabilities of this unique facility.