Latest Dobson unit Stories
The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year’s hole was 24.1 million square kilometers (9.3 million square miles) — an area roughly the size of North America.
According to data from NASA and NOAA satellites, the average area covered by the Antarctic ozone hole this year was the second smallest in the last 20 years, which scientists attribute to warmer temperatures in the Antarctic lower stratosphere.
A new satellite instrument suite is now sending back detailed information about the health of the Earth's ozone layer, the shield that protects the world’s population from harmful levels of the sun's ultraviolet radiation.
The Antarctic ozone hole, which yawns wide every Southern Hemisphere spring, reached its annual peak on Sept. 12. It stretched to 10.05 million square miles, the ninth largest ozone hole on record.
A team of international researchers, led by NASA scientists, has discovered an unprecedented loss of protective ozone in the atmosphere above the Arctic this year.
The year is 2065 - nearly two-thirds of Earth's ozone is gone -- not just over the poles, but everywhere.
Swedenâ€™s ozone layer was thicker in February that it has been in decades, according to a report released Tuesday from the Swedish Meteorological Institute (SMHI).
The 2008 ozone hole â€“ a thinning in the ozone layer over Antarctica â€“ is larger both in size and ozone loss than 2007 but is not as large as 2006.
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