10 February 2016
Unusual cold spell in the stratosphere creates conditions for severe ozone depletion in the Arctic
AWI researchers measure temperatures of minus 90 degrees Celsius and lower at 20 kilometres altitude.
Bremerhaven, 10 February 2016. Unusual weather development in the Arctic leads to ozone depletion. According to the researchers of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, in the past weeks an extreme cold spell in the Arctic stratosphere has created conditions that might cause severe ozone depletion over the Arctic in March - if the next few weeks will not bring a significant warming. Read more...

chemistry conditions (ATLAS model calculations with ECMWF forecast) Integrated chemical column ozone loss (ATLAS model calculations with ECMWF forecast)
(click pictures to enlarge)

News - 7 Sep 2015
DACCIWA Publication in Nature Climate Change.

17. June 2015
First DACCIWA Newsletter published.

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