DYNAMICS OF THE MESOSPHERE AND LOWER THERMOSPHERE AS SEEN BY MF RADARS AND BY THE HIGH-RESOLUTION DOPPLER IMAGER UARS

This paper presents comparisons between wind measurements in the mesos phere and lower thermosphere by medium-frequency (MF) radars and by th e high-resolution Doppler imager onboard the Upper Atmosphere Research Satellite (UARS). Because of distinctive observational patterns, time and space averaging, and data, processing algorithms, satellites and radars observe the atmosphere from their own perspectives. Because the rmal tides are an important part of dynamics in these regions of the a tmosphere, tidal determinations from both techniques were given partic ular attention. Differences and similarities of the two methods are di scussed and analyzed.