Fig. 5: Extent of recovery for Antarctic ozone hole showing the influence of varying chlorine loading.
From: Delay in recovery of the Antarctic ozone hole from unexpected CFC-11 emissions
Extent of recovery (%) for the metrics of a September mean column ozone (90oS–60oS), b October mean column ozone, c area contained within the 220 DU contour (averaged September 7–October 13), d ozone mass deficit (averaged September 21–October 13) and e minimum column ozone (between September 21 and October 16) from TOMCAT simulations R2000 (2000 meteorology), R2000_CFC11_B (with additional CFC-11 emissions from box model), R2000_CFC11_67 (with constant CFC-11 emissions of 67 Gg yr−1) and R2000_NoVSLS (no chlorinated very short-lived substances) (see legend) from 1980 to 2080. For the metrics 0% recovery is defined as the maximum depletion (which occurs around 1998) and 100% recovery is defined as return to the 1980 value. The blue horizontal and vertical lines indicate 100% recovery and 2050, respectively.
