Summary

The upper troposphere and lower stratosphere (UTLS) is a highly coupled region of the atmosphere where radiation, dynamics, clouds and chemical processes interact on a wide variety of spatial and temporal scales. We use a suite of instruments at Davis, Antarctica (69S, 78E) to investigate clouds and dynamics in the high southern latitude UTLS during a variety of meteorological conditions. A Rayleigh lidar provides observations of tropospheric cirrus clouds and (wintertime) polar stratospheric clouds; a Very High Frequency (VHF) radar resolves the year-round radar tropopause and provides wind data; and co-located vertically-resolved ozone profiles are available from ozonesondes. Using these data, we will present case studies of sub-visual and visual clouds (including their thickness and composition) and illustrate gravity wave generation and propagation through this region.

Authors:Alexander S.P. Klekociuk A.R. Murphy D.J. French W.J.R. Love P. Published in: 2013 Category 3: Verbal presentation Program area: Climate Processes and Change
Read publication at asiaoceania.org
Alexander S.P., Klekociuk A.R., Murphy D.J., French W.J.R., Love P. (2013) Wave Dynamics in the Antarctic Regio, Asia Oceania Geosciences Society 10th Annual Meeting, Brisbane, Queensland, Australia 24-28 June 2013 .; http://www.asiaoceania.org/aogs2013/public.asp?page=home.htm;

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