Xin Yang from the British Antarctic Survey will be conducting a session on polar near surface ozone depletion.

In this talk he will briefly introduce an atmospheric chemistry phenomenon in polar regions – near surface ozone (O3) concentration drops quickly from a background level to almost zero in polar spring. This phenomenon is very similar but different to the well-known Antarctic ozone hole, which occurs high in the stratosphere (20 -30 km above the ground). He will give explanations to the cause of the ozone loss in near surface layer such as via halogen chemistry and then introduce proposed sources of bromine species in the sea ice zone.

26 Sept 2022

Time: 9:30

Suitable for: 15-18 years

Field of expertise: Polar atmospheric chemistry, sea salt aerosol modelling

To register visit https://setpointherts-org-uk.zoom.us/meeting/register/tZMrceGqrDMvEtDd1br1wmFyKDrNMWzwhfKw