Wy. Zhong et al., CLIMATE FORCING BY STRATOSPHERIC OZONE DEPLETION CALCULATED FROM OBSERVED TEMPERATURE TRENDS, Geophysical research letters, 23(22), 1996, pp. 3183-3186
The radiative forcing of the surface-troposphere system caused by stra
tospheric ozone depletion in the 1980s is calculated using observed va
lues of change in ozone, from TOMS data, and temperature, from MSU dat
a. The seasonal variation of the ozone and temperature trends produces
strong seasonal and latitudinal variations in radiative forcing. The
balance between peak positive solar forcing and maximum negative longw
ave forcing shifts the peak negative forcing at the South Pole from No
vember to October. The time difference between peak ozone loss and max
imum temperature decrease results in net positive values in Southern H
emisphere mid-latitudes in August and September. Positive values also
occur at low latitudes in both hemispheres. The globally and annually
averaged net radiative forcing is about -0.025W m(-2) between 1979 and
1990, much less than that previously reported using fixed dynamical h
eating model temperature changes, although inclusion of the ozone 14 m
u m band would somewhat narrow this gap. Ozone radiative forcing is ve
ry sensitive to the vertical profile of temperature change.