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Observed and model-calculated NO2/NO ratios in tropospheric air sampled during the NASA GTE/CITE-2 field studyAirborne measurements of NO2/NO ratios in the free troposphere, obtained using two-photon LIF (TP-LIF) and chemiluminescence (CL) detectors during the NASA Global Tropospheric Experiment Chemical Instrumentation Test and Evaluation 2 (CITE 2) program in summer 1986, are analyzed and compared with the predictions of a photochemical model. The derivation of the model is outlined, with an emphasis on the role of peroxy radicals in the fast photochemical cycling of NO and NO2 and the production of O3; the CITE 2 instruments and flight protocols are described; and the results are presented in extensive tables and graphs and discussed in detail. It was found that on three CITE 2 flights the CL data were systematically greater than the TP-LIF data; when these data were removed, the averaged values of the two instruments agreed to within 1 percent. The NO2/NO ratios predicted by the model are shown to be consistent with the measurements, although usually 20-25 percent lower.
Document ID
19900053208
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chameides, W. L.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Davis, D. D.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Bradshaw, J.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Sandholm, S.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Rodgers, M.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Baum, B.
(Georgia Institute of Technology Atlanta, United States)
Ridley, B.
(NCAR Boulder, CO, United States)
Gregory, G.
(NASA Langley Research Center Hampton, VA, United States)
Torres, A.
(NASA Wallops Flight Center Wallops Island, VA, United States)
Condon, E.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
June 20, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A40263
Funding Number(s)
CONTRACT_GRANT: NAG1-385
CONTRACT_GRANT: NSF ATM-86-00888
CONTRACT_GRANT: NAG1-50
Distribution Limits
Public
Copyright
Other

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