The ozone hole about the South Pole will remain under surveillance beyond the 2020 and 2021 records. Since the end of August, it has reached dimensions greater thanAntarctica, but it now seems to be returning to the norm. Despite this, monitoring in the coming weeks will still be a crucial step in understanding how this situation will evolve.
This was announced by the CAMS (Copernicus Atmosphere Monitoring Service) on the occasion of the UN International Day for the preserving the ozone layer celebrating the 35th anniversary of the ban on substances that destroy ozone through the Montreal Protocol. The ozone hole generally begins to form in spring in the Northern Hemisphere, reaching its maximum between mid-September and mid-October.
This year’s Antarctic ozone hole began developing in late August and has so far followed similar trends to those of the past decade in terms of area, minimum total column, mass deficit and minimum temperature. According to our data from early September, the ozone hole size is within average. Nevertheless, we will keep the development under control in the coming weeks, as the ozone holes in 2020 and 2021 only started to become exceptional shortly after.
Vincent-Henri Peuch, director of Cams
The evolution of the ozone hole can be followed by combining satellite and in situ observations from detailed models of the atmosphere.
Source: Lega Nerd
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