Vortex-averaged Arctic ozone depletion in the winter 2002/2003

T. Christensen (1) , B. M. Knudsen (1) , M. Streibel (2) , S. B. Andersen (1) , A. Benesova (3) , G. Braathen (4) , H. Claude (5) , J. Davies (6) , H. de Backer (7) , H. Dier (5) , V. Dorokhov (8) , M. Gerding (9) , M. Gil (10) , B. Henchoz (11) , H. Kelder (12) , R. Kivi (13) , E. Kyrö (13) , Z. Litynska (14) , D. Moore (15) , G. Peters (5) , P. Skrivankova (3) , R. Stübi (11) , T. Turunen (13) , G. Vaughan (16) , P. Viatte (11) , A. F. Vik (4) , P. von Der Gathen (2) , I. Zaitcev (8)

1 DMI - Danish Meteorological Institute
2 Department of Bentho-pelagic processes
3 CHMI - Czech Hydrometeorological Institute
4 NILU - Norwegian Institute for Air Research
5 DWD - Deutscher Wetterdienst [Offenbach]
6 ECCC - Environment and Climate Change Canada
7 IRM - Institut Royal Météorologique de Belgique [Bruxelles] - Royal Meteorological Institute of Belgium
8 CAO - Central Aerological Observatory
9 IAP - Leibniz-Institut für Atmosphärenphysik
10 Instituto Nacional de Téchnica Aerospacial
11 Federal Office of Meteorology and Climatology MeteoSwiss
12 KNMI - Royal Netherlands Meteorological Institute
13 FMI - Finnish Meteorological Institute
14 IMWM
15 United Kingdom Met Office [Exeter]
16 University of Wales

A total ozone depletion of 68 Dobson units from 10 December 2002 to 10 March 2003 is derived by the vortex-average method taking into account both diabatic descent of the air masses and transport of air into the vortex. When the vortex is divided into three equal-area regions, the results are 85 DU for the collar region (closest to the edge), 52 DU for the vortex centre and 68 DU for the middle region in between centre and collar.

Domaines: Océan, Atmosphère

T. Christensen, B. M. Knudsen, M. Streibel, S. B. Andersen, A. Benesova, et al.. Vortex-averaged Arctic ozone depletion in the winter 2002/2003. Atmospheric Chemistry and Physics Discussions, 2004, 4 (5), pp.6667-6689. ⟨hal-00301469⟩