The C3S (Copernicus Climate Change Service) and CAMS (Copernicus Atmosphere Monitoring Service) confirmed that the hole in the Ozone layer has healed itself.
Highlights
- The hole was 1 million square kilometres wide above the Arctic.
- The hole was identified by the scientists in March 2020.
- It was formed due to unusual climatic conditions.
How did the hole close?
- The main reason for the hole to heal by itself is the polar vortex.
- Also, according to the scientists the closure of the hole is not due to the reduced pollution levels due to COVID-19 lock down.
Threats
- The hole possessed greater threats. It was the largest pole that was found in the history of Ozone layer.
- If the hole had moved towards south, it would have created catastrophic results in the mid latitudes.
Polar Vortex
- The Polar Vortex is a winter phenomenon.
- Polar Vortex is cyclonic circular winds that blow in the stratosphere from west to east.
- Polar Vortex extends from tropopause through the stratosphere and into the mesosphere.
- When the vorticity is high, values of ozone is minimum and the temperature is at its highest cold.
- Thus, the hole has closed as the vorticity has decreased.
Ozone Layer
The Ozone Layer is a shield in the earth’s stratosphere that protects the planet from the harmful UV radiation from the sun.
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