CEDAR: Dynasonde Doppler Measurements at Mid-Latitude

调查人员将开发和应用奇异值分解方法来解释数字电离层探测仪的测量结果。该方法可以同时获得电离层回波的多普勒速度和空间位置。该技术基于在几十秒内用扫频探测进行的测量。将对来自犹他州州立大学中纬度熊湖观测站的现有数据以及1992年秋季在阿拉斯加进行电离层加热活动期间获得的数据进行分析。多普勒速度将与法布里-珀罗干涉仪测量的中性风和模型计算得出的中性风的纬向分量进行比较。

The investigators will develop and apply the method of singular value decomposition to interpret measurements made by a digital ionosonde. Both the Doppler velocity and spatial location of ionospheric echoes can be obtained by this method. The technique is based on measurements made in a few tens of seconds with a sweep-frequency sounding. Existing data from the Utah State University mid-latitude Bear Lake Observatory will be analyzed as well as data obtained during an ionospheric heating campaign in Alaska during the Fall of 1992. The Doppler velocities will be compared with measurements of the neutral wind from a Fabry-Perot interferometer and with the meridional component of the neutral wind derived from model calculations.***