edu.ucar.opensky::articles:10445 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T14:09:03.639203 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7mc90hn Simulations of the response of the mesospheric circulation and temperature to the Antarctic ozone hole 2010-11-18T00:00:00Z publication https://n2t.org/ark:/85065/d7mc90hn https://doi.org/10.1029/2010GL045255 Smith, Anne K. author García, Rolando R. author Marsh, Daniel author Kinnison, Douglas E. author Richter, Jadwiga H. author UCAR/NCAR - Library publisher The loss of ozone that has occurred in the Antarctic lower stratosphere during each spring since 1980 has led to a decrease in the lower stratospheric temperature that persists into the summer season. The temperature changes are accompanied by changes in the zonal wind in the SH stratosphere that affect the filtering of gravity waves propagating into the mesosphere. In simulations with the Whole Atmosphere Community Climate Model (WACCM), the resulting gravity wave changes have led to a weakening of the SH summer upwelling around 65-80 km and of the equatorward flow around 0.01 hPa. The trend occurs primarily in the years 1975-1990. The circulation changes are accompanied by an increase in the SH temperature at 65-85 km and a decrease at 95 km. Comparison of the summer temperatures in the NH and SH indicates a distinctive offset beginning around 1980. The increase in temperature near the SH summer mesopause has implications for the presence of polar mesospheric clouds. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2010 American Geophysical Union. None eng geoscientificInformation