Arctic ozone loss and climate change
Article first published online: 28 FEB 2004
Copyright 2004 by the American Geophysical Union.
Geophysical Research Letters
Volume 31, Issue 4, February 2004
How to Cite
2004), Arctic ozone loss and climate change, Geophys. Res. Lett., 31, L04116, doi:10.1029/2003GL018844., , , , , and (
- Issue published online: 28 FEB 2004
- Article first published online: 28 FEB 2004
- Manuscript Accepted: 21 JAN 2004
- Manuscript Revised: 5 DEC 2003
- Manuscript Received: 15 OCT 2003
 We report the first empirical quantification of the relation between winter-spring loss of Arctic ozone and changes in stratospheric climate. Our observations show that ∼15 DU additional loss of column ozone can be expected per Kelvin cooling of the Arctic lower stratosphere, an impact nearly three times larger than current model simulations suggest. We show that stratospheric climate conditions became significantly more favorable for large Arctic ozone losses over the past four decades; i.e., the maximum potential for formation of polar stratospheric clouds increased steadily by a factor of three. Severe Arctic ozone loss during the past decade occurred as a result of the combined effect of this long-term climate change and the anthropogenic increase in stratospheric halogens.