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Arctic Ozone Depletion Observed by UARS MLS During the 1994-95 WinterDuring the unusually cold 1994-95 Arctic winter, the Microwave Limb Sounder observed enhanced chlorine monoxide (ClO) in late Dec and throughout Feb and early Mar. Late Dec ClO was higher than during any of the previous 3 years, consistent with the colder early winter. Between late Dec 1994 and early Feb 1995, 465 K (about 50 hPa) vortex-averaged ozone (03) decreased by about 15%, with local decreases of about 30%; additional local decreases of about 5% were seen between early Feb and early Mar. Transport calculations indicate that vortex-averaged chemical loss between late Dec and early Feb was about 20% at 465 K, with about 1/4 of that masked by downward transport of O3. This Arctic chemical O3 loss is not readily detectable in MLS column O3 data.
Document ID
19990076689
Acquisition Source
Jet Propulsion Laboratory
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Manney, G. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Froidevaux, L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Waters, J. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Santee, M. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Read, W. G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Flower, D. A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Jarnot, R. F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Zurek, R. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1996
Publication Information
Publication: Geophysical Research Letters
Publisher: American Geophysical Union
Volume: 23
Issue: 1
ISSN: 0094-8534
Subject Category
Geophysics
Report/Patent Number
Paper-95GL03591
Distribution Limits
Public
Copyright
Other

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