CEDAR/TIMED: An Intensive Co-located Intercomparison of Radar and Optical Wind and Temperature Measurements in the Mesopause Region

ATM9872814调查人员将进行两次广泛的测量活动，涉及流星和中频雷达、一台ccd光谱仪和一台激光雷达。其目的是研究30至40兆赫全天流星雷达、普拉特维尔大气观测站的中频雷达和科罗拉多州立大学的钠激光雷达之间水平风速测量的系统偏差。此外，通过进行一致的测量，研究人员将验证一种使用流星雷达数据确定中层顶温度的新技术。这些仪器将在两个月内尽可能多地夜间运行，一个在夏天，一个在冬天。将使用统计技术进行比较，以客观、定量地确定各种技术在中性风和温度测量中存在的任何系统偏差。研究结果将为雪松/Timed计划做出贡献。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。

ATM9872814absThe investigators will conduct two extended measurement campaigns involving meteor and medium frequency radars, a CCD spectrograph, and a lidar. The objective is to study systematic biases in horizontal wind measurements between the 30 and 40 MHz all-sky meteor radars, and the medium frequency radar at Platteville Atmospheric Observatory, and a sodium lidar located at Colorado State University. Also, by making coincident measurements, the investigators will validate a new technique for determining mesopause temperatures using meteor radar data. The instruments will be operated for as many nights as possible during two months, one in summer and one in winter. The comparison will be conducted using statistical techniques to provide an objective, quantitative determination of any systematic biases that exist in neutral wind and temperature measurements from the various techniques. The results will contribute to the CEDAR/TIMED program. 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.