Severe 2011 ozone depletion assessed with 11 years of ozone, NO2, and OClO measurements at 80°N

被引：32

作者：

Adams, C. ^{[1
]}

Strong, K. ^{[1
]}

Zhao, X. ^{[1
]}

Bassford, M. R. ^{[1
]}

Chipperfield, M. P. ^{[2
]}

Daffer, W. ^{[3
]}

Drummond, J. R. ^{[1
,4
]}

Farahani, E. E. ^{[1
]}

Feng, W. ^{[5
]}

Fraser, A. ^{[1
]}

Goutail, F. ^{[6
]}

Manney, G. ^{[3
,7
]}

McLinden, C. A. ^{[8
]}

Pazmino, A. ^{[6
]}

Rex, M. ^{[9
]}

Walker, Kaley A. ^{[1
,10
]}

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[2] Univ Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England

[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[4] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

[5] Univ Leeds, Sch Earth & Environm, Natl Ctr Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England

[6] CNRS, LATMOS, F-78280 Guyancourt, France

[7] New Mexico Inst Min & Technol, Dept Phys, Socorro, NM 87801 USA

[8] Environm Canada, Toronto, ON M3H 5T4, Canada

[9] Alfred Wegener Inst Polar & Marine Res, D-14473 Potsdam, Germany

[10] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

来源：

GEOPHYSICAL RESEARCH LETTERS | 2012年 / 39卷

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

CHEMISTRY; WINTER;

D O I：

10.1029/2011GL050478

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Unusually cold conditions in Arctic winter 2010/11 led to large stratospheric ozone loss. We investigate this with UV-visible measurements made at Eureka, Canada (80.05 degrees N, 86.42 degrees W) from 1999-2011. For 8-22 March 2011, OClO was enhanced, indicating chlorine activation above Eureka. Ozone columns were lower than in any other year in the record, reaching minima of 237 DU and 247 DU in two datasets. The average NO2 column inside the vortex, measured at visible and UV wavelengths, was 46 +/- 30% and 45 +/- 27% lower in 2011 than the average NO2 column from previous years. Ozone column loss was estimated from two ozone datasets, using a modeled passive ozone tracer. For 12-20 March 2011, the average ozone loss was 27% and 29% (99 DU and 108 DU). The largest percent ozone loss in the 11-year record of 47% (250 DU and 251 DU) was observed on 5 April 2011. Citation: Adams, C., et al. (2012), Severe 2011 ozone depletion assessed with 11 years of ozone, NO2, and OClO measurements at 80 degrees N, Geophys. Res. Lett., 39, L05806, doi:10.1029/2011GL050478.

引用

页数：4

共 21 条

[1]

Adams C., 2012, ATMOS MEAS TECHNIQUE, V5, P517, DOI DOI 10.5194/AMTD-5-517-2012

[2] Observed and modelled record ozone decline over the Arctic during winter/spring 2011 [J].