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Net ozone photochemical production over the eastern and central North Pacific as inferred from GTE/CITE 1 observations during fall 1983The role of photochemistry in the budget of tropospheric ozone is studied. Measurements of O3, NO, CO, H2O vapor, and temperature obtained during the fall of 1983 during the GTE/CITE project over the eastern and central North Pacific Ocean are analyzed. The effect of altitude on the measurements is discussed. The analysis reveals a correlation between ozone and NO levels; both increase in concentration and variability with altitude. It is observed that an additional source of secondary importance associated wih CO-rich air parcels exists. A photochemical model is utilized to calculate the net rate of ozone production by photochemical reactions. A net photochemical source of ozone in the free troposphere and a net sink in the boundary layer are detected. The relation between the ozone source in the free troposphere and NO is examined. It is estimated that photochemistry provides a net ozone source to the free troposphere overlying the eastern and central North Pacific Ocean of about 5 x 10 to the 10th molecules/sq cm sec and a net sink of ozone to the boundary layer overlying this region of about 3 x 10 to the 10th molecules/sq cm sec.
Document ID
19870046165
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)
Rodgers, M. O.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Bradshaw, J.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Sandholm, S.
(Georgia Institute of Technology Atlanta, United States)
Sachse, G.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Hill, G.
(Georgia Inst. of Tech. Atlanta, GA, United States)
Gregory, G.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
February 20, 1987
Publication Information
Publication: Journal of Geophysical Research
Volume: 92
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
87A33439
Funding Number(s)
CONTRACT_GRANT: NAG1-50
CONTRACT_GRANT: NSF ATM-82-08828
CONTRACT_GRANT: NAG1-385
Distribution Limits
Public
Copyright
Other

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