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Validation of SAGE II NO2 measurementsThe validity of NO2 measurements from the stratospheric aerosol and gas experiment (SAGE) II is examined by comparing the data with climatological distributions of NO2 and by examining the consistency of the observations themselves. The precision at high altitudes is found to be 5 percent, which is also the case at specific low altitudes for certain latitudes where the mixing ratio is 4 ppbv, and the precision is 0.2 ppbv at low altitudes. The autocorrelation distance of the smoothed profile measurement noise is 3-5 km and 10 km for 1-km and 5-km smoothing, respectively. The SAGE II measurements agree with spectroscopic measurements to within 10 percent, and the SAGE measurements are about 20 percent smaller than average limb monitor measurements at the mixing ratio peak. SAGE I and SAGE II measurements are slightly different, but the difference is not attributed to changes in atmospheric NO2.
Document ID
19910062722
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cunnold, D. M.
(Georgia Institute of Technology Atlanta, United States)
Zawodny, J. M.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Chu, W. P.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Mccormick, M. P.
(NASA Langley Research Center Hampton, VA, United States)
Pommereau, J. P.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Goutail, F.
(CNRS Service d'Aeronomie, Verrieres-le-Buisson, France)
Date Acquired
August 14, 2013
Publication Date
July 20, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
91A47345
Funding Number(s)
CONTRACT_GRANT: NAS1-18460
CONTRACT_GRANT: NAS1-18487
CONTRACT_GRANT: NAS1-18938
CONTRACT_GRANT: NAS1-18306
Distribution Limits
Public
Copyright
Other

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