Recent observations from satellites and ground stations suggest that atmospheric ozone levels for March in the Arctic were approaching the lowest levels in the modern instrumental era.
Published Mar 30, 2011
While such low concentrations of ozone are unusual, they are not unprecedented.
Published Apr 16, 2020Image of the Day Atmosphere Heat Drought Fires Remote Sensing Temperature Extremes
Patterns of ozone accumulation and depletion are very different around the North Pole.
Published Jun 8, 2014
New research from NASA scientists shows that the amount of chlorine in the stratosphere over the South Pole is declining at the same time that ozone holes are becoming less severe.
Published Feb 13, 2018
The hole in the ozone layer over Antarctica was slightly above average size in 2018, but smaller than expected for the weather conditions.
Published Nov 14, 2018
Blues and purples in this image of Antarctic ozone concentrations reveal the developing ozone hole of 2009.
Published Sep 17, 2009
On September 12, 2008, the Antarctic ozone hole reached its maximum size for the year.
Published Oct 25, 2008
An unusually long period of cold temperatures and strong winds allowed an Arctic ozone hole to form in March 2011.
Published Oct 6, 2011
Abnormal weather patterns in the upper atmosphere over Antarctica dramatically limited ozone depletion.
Published Oct 22, 2019
The smaller ozone hole was strongly influenced by an unstable and warmer-than-usual Antarctic vortex.
Published Nov 3, 2017
