Ozone hole: The size has increased to 24.8 million square kilometers this year, eight times larger than India

Agency, New Delhi

Published by: Dev Kashyap
29 October 2021 02:36 AM Updated to IS

Summary

Scientists expect the ozone hole, which is generally cooler than southern Hampshire, to last until November and December.

The growing ozone hole over Antarctica
– Photo: NASA

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Satellite images show that the ozone hole has grown to 24.8 million square kilometers. It is estimated to be eight times higher than India. According to the National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA), the size of the ozone hole peaked in 2021. In 2021, the Antarctic ozone hole peaked on October 7, the 13th largest since 1979.

Scientists say the ozone hole, which is generally cooler than southern Hampshire, will last until November and December. Paul Newman, NASA’s chief geologist, said such a huge ozone hole would be colder than average in 2021 and would have been much larger without the Montreal Protocol.

Scientists at the South Pole Center monitor the ozone hole by flying an atmospheric balloon equipped with an ozone measuring device. The ozone hole is expected to be much larger at the start of the season this year.

Every September in the stratosphere over Antarctica, the ozone hole grows larger due to the thinning of the ozone layer. In fact, this is due to the release of chemically active chlorine and bromine produced in September by the reaction of high altitude ice clouds and man-made compounds.

As Antarctica grows in late winter, reactive chlorine and bromine begin to break down ozone. Although experts say the ozone hole will be larger than average in 2021, it will be much smaller than it was in the 1990s and early 2000s.

Expansion

Satellite images show that the ozone hole has grown to 24.8 million square kilometers. It is estimated to be eight times higher than India. According to the National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA), the size of the ozone hole peaked in 2021. In 2021, the Antarctic ozone hole peaked on October 7, the 13th largest since 1979.

Scientists say the ozone hole, which is generally cooler than southern Hampshire, will last until November and December. Paul Newman, NASA’s chief geologist, said such a huge ozone hole would be colder than average in 2021 and would have been much larger without the Montreal Protocol.

Scientists at the South Pole Center monitor the ozone hole by flying an atmospheric balloon equipped with an ozone measuring device. The ozone hole is expected to be much larger at the start of the season this year.

Every September in the stratosphere over Antarctica, the ozone hole grows larger due to the thinning of the ozone layer. In fact, this is due to the release of chemically active chlorine and bromine produced in September by the reaction of high altitude ice clouds and man-made compounds.

As Antarctica grows in late winter, reactive chlorine and bromine begin to break down ozone. Although experts say the ozone hole will be larger than average in 2021, it will be much smaller than it was in the 1990s and early 2000s.

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