CEDAR: Collaborative All-Sky Measurement for CEDAR-TIMED Investigations of Small-Scale Gravity Wave Dynamics in the MLT Region

该项目的主要目标是测量小尺度重力波及其特征和季节变化，以确定输送到MLT的动量和能量以及相关的化学加热速率。这将通过操作由三个全天CCD成像仪组成的“纬向链”站来实现，这些成像仪具有重叠的视场，每个都能够对夜光波结构进行定量测量。pi位于落基山脉地区的三个战略性中纬度地点：熊湖天文台（BLO）， UT, Grand Junction， CO和Starfire光学范围，NM， pi将能够在大地理区域（1,000,000平方公里）上进行小尺度波的综合现场测量，足以与TIMED边缘观测仪器进行频繁和有意义的比较。在为期两年的TIMED任务期间，测量将在“连续”的基础上进行（以新月为中心的15个夜晚/月）。在TIMED飞越期间，TIDI将测量纬向链以上的中间层风场，而SABER将观测MLT温度并采样辐射物质的分布。通过这种方式，监测站将获得小尺度波浪的协调测量，用于覆盖几个季节和当地时间的多次定时飞越。这条链还将把柯林斯堡、BLO和Starfire的拟议群集测量“连接”在一起，从而进一步增强在这一重要源区域协调测量的潜力。

The primary goal of this program is to make measurements of small-scale gravity waves, their characteristics and seasonal variability with a view to ascertaining the momentum and energy transported into the MLT and associated chemical heating rates. This will be achieved by operating a "Latitudinal Chain" of stations consisting of three all-sky CCD imagers with overlapping fields of view each capable of quantitative measurements of nightglow wave structure. Located at three strategic mid-latitude sites in the Rocky Mountain area: Bear Lake Observatory (BLO), UT, Grand Junction, CO and Starfire Optical Range, NM, the PIs will be able to make composite field measurements of small-scale waves over a large geographic area (1,000,000km2) sufficient to permit frequent and meaningful comparisons with the TIMED limb viewing instruments. Measurements will be performed on a "continuous" basis (15 nights/month centered on the new moon) for the 2 year duration of the TIMED mission. During TIMED overflights TIDI will measure the mesospheric wind field above the latitudinal chain while SABER will observe the MLT temperatures and will sample the distribution of radiating species. In this manner the PIs will obtain coordinated measurements of small-scale waves for repeated TIMED overflights covering several seasons and local times. This chain will also "link" together proposed cluster measurements at Ft. Collins, BLO and Starfire thereby further enhancing the potential of coordinated measurements over this important source region.