Atmospheric Chemistry and Physics www.atmos-chem-phys.net 1680-7316 1680-7324 8 16 2008 10.5194/acp-8-4677-2008 http://www.atmos-chem-phys.net/8/4677/2008/ http://www.atmos-chem-phys.net/8/4677/2008/acp-8-4677-2008.html http://www.atmos-chem-phys.net/8/4677/2008/acp-8-4677-2008.pdf 4677 4681 2008-08-14 Mesoscale temperature fluctuations in the Southern Hemisphere stratosphere B. L. Gary blgary@umich.edu Jet Propulsion Laboratory, Pasadena, CA, USA 5320 E. Calle Manzana, Hereford, AZ 85615-9514, USA Isentrope surfaces in the Southern Hemisphere stratosphere reveal that air parcels undergo mesoscale temperature fluctuations that depend on latitude and season. The largest temperature fluctuations occur at high latitude winter, whereas the smallest fluctuations occur at high latitude summer. This is the same pattern found for the Northern Hemisphere stratosphere. However, the amplitude of the seasonal dependence in the Southern Hemisphere is only 37% of the Northern Hemisphere's seasonal amplitude. Gary, B. L.: Mesoscale temperature fluctuations in the stratosphere, Atmos. Chem. Phys., 6, 4577–4589, 2006.