Winter mesospheric temperatures above South Pole (90°S) and their relationship to the springtime ozone hole size

Details Winter mesospheric temperatures above South Pole (90°S) and their relationship to the springtime ozone hole size Winter mesospheric temperatures above South Pole (90°S) and their relationship to the springtime ozone hole size

Apr 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3107109h&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 7, CiteID L07109

Physics

1

Atmospheric Composition And Structure: Middle Atmosphere-Energy Deposition, Global Change: Atmosphere (0315, 0325), Meteorology And Atmospheric Dynamics: Mesospheric Dynamics, Meteorology And Atmospheric Dynamics: Polar Meteorology, Planetology: Solid Surface Planets: Atmospheres-Structure And Dynamics

Scientific paper

Mesospheric kinetic temperatures measured above South Pole Station (90°S) during the austral polar winter show significant changes, which have been found to be associated with changes in the size of the polar stratospheric clouds temperature area (PSC-1), vortex area, and ozone hole area later in the austral spring. Linear regression fits show a statistically significant correlation -95% confidence level- between the mesospheric temperature and the stratospheric dynamic variables. These results show the sensitivity of the mesosphere to changes in the atmosphere below. Thus, the mesospheric temperatures measured above South Pole provide a quantitative indication of the dynamic scenario upon which the ozone hole chemistry will be played later in the spring. That is, these mesospheric temperatures can be used as a forecasting tool with which some of the stratospheric dynamical variables affecting the area of the ozone hole can be estimated with statistical confidence.

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