scostep 2010 (stp12) - Leibniz-Institut für Atmosphärenphysik an der ...

STP12 Abstracts
Berlin, 12 - 16 July 2010
SCOSTEP Symposium 2010
Comparative observations of gravity waves in MLT region using the Kunming MF
radar and Meteor radar
Jinsong Chen 1 , Jiyao xu 2 , Jian wu 3
1 Graduate University of Chinese Academy of Sciences, Beijing, China, 2 Center for Space Science
and Applied Research, Chinese Academy of Sciences, Beijing, China, 3 China Research Institute of
Radiowave Propagation, Qingdao, China
An all-sky meteor radar and a MF radar had been installed at Kunming station (25.1°N,
102.7°E) since July 2008, and begun routine observations subsequently after a short test
operation. The data from these two radars in November and December 2009 have been used
to analyze gravity wave activities in mesosphere and lower thermosphere (MLT) over
Kunming. For MF radar the wind variances of gravity waves during 12-180-min periods
between 80-100 km are used to calculate frequency spectra of wind velocity, then estimate
variances , and