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AASE-2 in-situ tracer correlations of methane, nitrous oxide, and ozone as observed aboard the DC-8We report in situ stratospheric measurements of CH4, N2O, and O3 obtained aboard the NASA DC-8 during the January-March 1992 Airborne Arctic Stratospheric Expedition 2 field campaign. These data demonstrate a strong linear correlation between N2O and CH4 in the lower stratosphere thus indicating that both species are effective tracers of stratospheric air motion. Measurements of both species on constant geometric height surfaces indicate that significant subsidence of the arctic stratospheric air mass occurred at DC-8 altitudes over the course of the AASE-2 expedition. In addition, a widespread reduction in O3 mixing ratios (up to 20%) relative to these conserved tracers was also observed in the lower stratosphere in March as compared to January and February results.
Document ID
19950044324
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Collins, J. E., Jr.
(Science and Technology Corporation Hampton, VA, United States)
Sachse, G. W.
(NASA Langley Research Center Hampton, VA, United States)
Anderson, B. E.
(NASA Langley Research Center Hampton, VA, United States)
Weinheimer, A. J.
(National Center for Atmospheric Research, Boulder, CO United States)
Walega, J. G.
(National Center for Atmospheric Research, Boulder, CO United States)
Ridley, B. A.
(National Center for Atmospheric Research, Boulder, CO United States)
Date Acquired
August 16, 2013
Publication Date
November 19, 1993
Publication Information
Publication: Geophysical Research Letters
Volume: 20
Issue: 22
ISSN: 0094-8276
Subject Category
Environment Pollution
Accession Number
95A75923
Distribution Limits
Public
Copyright
Other

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