High arctic ultraviolet (UV) radiation levels in the spring of 2011 caused by unprecedented chemical ozone loss.

Bernhard, G.; Fioletov, V.; Heikkilä, A.; Johnsen, B.; Koskela, T.; Lakkela, K.; Myhre, C.L.

Book: Program & abstracts, 40th Annual ESRL Global Monitoring Annual Conference, Boulder, Colorado, 15-17 May 2012., P-63, 2012