TY  - JOUR
AU  - Goutail, F.
PY  - 2004//
TI  - Early unusual ozone loss during the Arctic winter 2002/03 compared to other winters
JO  - Atmospheric chemistry and physics
SP  - 5019–5044
VL  - 4
N2  - Total column ozone reduction in the Arctic is evaluated each winter since 1993/1994 by the transport method (3-D CTM passive ozone minus measurements). The cumulative loss from 1 December to the end of the season ranges from 5–10% during warm winters like 1998/1999, 2000/2001 and 2001/2002 up to 30%–32% during cold winters like 1994/1995 and 1995/1996. The 23% cumulative loss observed during the winter 2002/2003 is similar in amplitude to the 20–24% measured in 1996/1997 and 1999/2000 but the timing is different. It started unusually early in December after the occurrence of very low temperature at all stratospheric levels between 550 K and 435 K allowing PSC formation and thus chlorine activation. The early ozone loss of 2002/2003 is well captured by current 3-D CTM models.
SN  - 1680-7316
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=3229), last updated on Mon, 27 Apr 2009 11:54:11 +0200
ID  - Goutail2004
ER  -