Polar stratospheric clouds over Western Europe
Published in Weather 64, 87-92, doi:10.1002/wea.318 in 2009
Claudia Hinz, Peter Krämer and Gunther P. Können
The anomalous red twilights observed in mid-February 2008 over Western Europe can be attributed to the presence of a large field of Stratospheric Polar Clouds (PSCs). The vertical sounding of De Bilt indicates that a tropospheric high pressure system triggered an excess stratospheric cooling. Pictures of the twilight taken from several spots are shown.