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You are browsing the archive for atmospheres Archives - AGU Blogosphere.

15 October 2019

Radioactive chlorine from nuclear bomb tests still present in Antarctica

Antarctica’s ice sheets are still releasing radioactive chlorine from marine nuclear weapons tests in the 1950s, a new study finds. This suggests regions in Antarctica store and vent the radioactive element differently than previously thought. The results also improve scientists’ ability to use chlorine to learn more about Earth’s atmosphere.

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29 April 2019

New research takes deeper look at Venus’s clouds

Researchers have used infrared images to spy into the middle layer of Venus’s clouds and they have found some unexpected surprises.

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11 October 2018

Changes in Polar Jet Circulation Bring More Saharan Dust to the Arctic

Researchers at NYU Abu Dhabi, along with other global scientists, have identified a new mechanism by which warm dust travels from the Sahara Desert to the Arctic Circle, which has been proven to affect rising temperatures and ice melt in Greenland. Their findings highlight the role that the polar jet and associated atmospheric circulation plays in the transport of mineral dust from the Sahara Desert to the Arctic across the eastern side of the North Atlantic Ocean.

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