Denitrification and polar stratospheric cloud formation during the Arctic winter 2009/2010

• Published in: Atmospheric Chemistry and Physics
• Main Authors: F. Khosrawi, J. Urban, M. C. Pitts, P. Voelger, P. Achtert, M. Kaphlanov, M. L. Santee, G. L. Manney, D. Murtagh, K.-H. Fricke
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2011
• Subjects: Physics; QC1-999; Chemistry; QD1-999; Arctic; Esrange; Kiruna; Northern Sweden
• Online Access: https://doi.org/10.5194/acp-11-8471-2011; https://doaj.org/article/ba15a78963c84a938501006e406fab6b

The sedimentation of HNO 3 containing Polar Stratospheric Cloud (PSC) particles leads to a permanent removal of HNO 3 and thus to a denitrification of the stratosphere, an effect which plays an important role in stratospheric ozone depletion. The polar vortex in the Arctic winter 2009/2010 was very...