CEDAR: Detectors and Data Acquisition System for the Rayleigh and Resonance Lidars at USU/CASS Atmospheric Lidar Observatory (ALO)

这一研究人员将升级犹他州立大学大气与空间科学中心大气激光雷达观测站的瑞利散射和共振激光雷达。这次升级包括探测器和一个数据采集系统，这样就可以用两个激光雷达系统从平流层到较低的热层进行科学观测。目前，有一个探测器和一个单通道数据采集系统。这笔资金将用于购买激光雷达的新探测器、数据采集系统以及控制数据采集和望远镜指向的软件。这种硬件和软件的结合将使ALO能够贡献中等大气温度和风的观测，以支持雪松/定时科学目标。Cedar是大气区域耦合、能量和动力学的缩写，是一个将理论建模与地面测量相结合来研究高层大气和电离层的全球变化计划。Timed是NASA的一个卫星项目，用于研究热层、电离层、中间层能量学和动力学，以研究类似的大气区域。Cedar/Timed联合方案旨在协调地面和空间观测，以更好地了解较低热层和电离层的物理过程。

This investigators will upgrade Rayleigh scatter and resonance lidars at the Atmospheric Lidar Observatory (ALO) at the Center for Atmospheric and Space Sciences (CASS) at Utah State University. The upgrade includes detectors and a data acquisition system so that scientific observations can be made with the two lidar systems from the stratosphere into the lower thermosphere. Currently, there is one detector and a one-channel data acquisition system. The funds will be used to purchase new detectors for both lidars, a data acquisition system, and software for controlling the data acquisition and telescope pointing. This combination of hardware and software will enable ALO to contribute middle atmosphere temperature and wind observations in support of CEDAR/TIMED science goals. CEDAR, which stands for Coupling, Energetics, and Dynamics of Atmospheric Regions, is a global change program that combines theoretical modeling with ground-based measurements to study the upper atmosphere and ionosphere. TIMED, for Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics, is a NASA satellite program to study similar regions of the atmosphere. The joint CEDAR/TIMED program aims to coordinate ground-based and space-based observations to achieve better understanding of physical processes in the lower thermosphere and ionosphere.