Comparison Of Simultaneous Wind Measurements Using Colocated All-Sky Meteor Radar And Mf Spaced Antenna Radar Systems

An all-sky meteor radar and a MF spaced antenna radar have been installed to measure winds in the mesosphere and lower thermosphere (MLT) over Kunming (103.7 degrees E, 25.6 degrees N), China in 2007 by CRIRP (China Research Institute of Radio Propagation), and that provide us an opportunity to carry out a comparison study of winds measured by two different techniques. The first method involves the determination of winds using meteor drifts, and the second method used to determine winds was the spaced antenna technique. The two radar systems axe independent, the all-sky meteor radar operating at 37.5 MHz and MF radar at 2.138 MHz. The spatial separation of the two radars is approximately 200 m. Simultaneous data obtained from October 1 to 8, 2008, axe presented here, and this paper will describe a preliminary comparative result derived from these two radars. Several possible reasons for those discrepancies axe discussed also.