Temperature profiles in the MLT region using radar-meteor trail decay times: Comparison with TIMED/SABER observations

Details Temperature profiles in the MLT region using radar-meteor trail decay times: Comparison with TIMED/SABER observations Temperature profiles in the MLT region using radar-meteor trail decay times: Comparison with TIMED/SABER observations

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3416811k&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 16, CiteID L16811

Physics

8

Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Processes: Remote Sensing, Atmospheric Processes: Instruments And Techniques, Radio Science: Radar Atmospheric Physics (1220), Ionosphere: Meteor-Trail Physics

Scientific paper

A method for obtaining the height profiles of the temperature in the MLT region using the radar-meteor trail decay times is discussed. The present method combines the two existing methods for estimating the temperature-pressure parameter and the temperature from the meteor radar observations. Using these two measurements, pressure is obtained around 90 km and subsequently the height profile of pressure is obtained in the MLT region by assuming a scale height of 5-7 km. The height profile of the pressure is then used to obtain the temperature profile. The real-time pressure measurements are used to obtain the temperature profiles. Day-to-Day variability of the pressure around 90 km is compared with the monthly mean pressure values of CIRA-86 model and the temperature/pressure profiles are compared with the TIMED/SABER satellite measurements. The comparison of radar and SABER observations is very encouraging and reinforces the need of real-time pressure measurements for estimation of temperature from radar-meteor trail decay time technique.

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