Fig. 1

Ozone loss saturation in the Antarctic. The vertical profiles of ozone measured by ozonesondes on different dates at different stations in Antarctica. The profiles in red show the ozone distribution prior to the ozone loss period and those in blue show the ozone loss saturation observed in spring. The ozone loss saturation observed in 1987 from then available measurements are shown in green. The dotted horizontal lines represent altitude 360 K (~12 km) and 510 K (~20 km), where the loss saturation is very common and frequent. The vertical dashed lines represent 0 mPa