Severe chemical ozone loss inside the Arctic Polar Vortex during winter 
1999-2000 inferred from in-situ airborne measurements

Richard, E. C.; Aikin, K. C.; Andrews, A. E.; Daube, B. C.; Gerbig, Christoph; Wofsy, S. C.; Romashkin, P. A.; Hurst, D. F.; Ray, E. A.; Moore, F. L.; Elkins, J. W.; Deshler, T.; Toon, G. C.

doi:10.1029/2001GL013627

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Severe chemical ozone loss inside the Arctic Polar Vortex during winter 1999-2000 inferred from in-situ airborne measurements

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http://dx.doi.org/10.1029/2001GL013627
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Richard, E. C., Aikin, K. C., Andrews, A. E., Daube, B. C., Gerbig, C., Wofsy, S. C., et al. (2001). Severe chemical ozone loss inside the Arctic Polar Vortex during winter 1999-2000 inferred from in-situ airborne measurements. Geophysical Research Letters, 28(16), 3167-3167. doi:10.1029/2001GL013627.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-D646-E

Abstract

Lower stratosphericin situ observationsa re usedt o quantify both the accumulated ozone loss and the ozone chemical loss rates in the Arctic polar vortex during the 1999- 2000 winter. Multiple long-lived trace gas correlations are used to identify parcels in the inner Arctic vortex whose chemical loss rates are unaffected by extra-vortex intrusions. Ozone-tracer correlations are then used to calculate ozone chemical loss rates. During the late winter the ozone chemical loss rate is found to be-46 q- 6 (1•) ppbv/day. By mid-March 2000, the accumulated ozone chemical loss is 58 q- 4 % in the lower stratosphere near 450 K potential temperature(- 19 km altitude).