publication . Article . 1998

Sources of HOxand production of ozone in the upper troposphere over the United States

Lyatt Jaeglé; Daniel J. Jacob; William H. Brune; D. Tan; Ian Faloona; Andrew J. Weinheimer; Brian A. Ridley; Teresa Campos; G. W. Sachse;
Open Access
  • Published: 15 May 1998 Journal: Geophysical Research Letters, volume 25, pages 1,709-1,712 (issn: 0094-8276, Copyright policy)
  • Publisher: American Geophysical Union (AGU)
Abstract
The sources of HO x (OH+peroxy radicals) and the associated production of ozone at 8-12 km over the United States are examined by modeling observations of OH, HO 2 , NO, and other species during the SUCCESS aircraft campaign in April-May 1996. The HO x concentrations measured in SUCCESS are up to a factor of 3 higher than can be calculated from oxidation of water vapor and photolysis of acetone. The highest discrepancy was seen in the outflow of a convective storm. We show that convective injection of peroxides (CH 3 OOH and H 2 O 2 ) and formaldehyde (CH 2 O) from the boundary layer to the upper troposphere could resolve this discrepancy. More generally, the da...
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Subjects
free text keywords: Planetary boundary layer, Formaldehyde, chemistry.chemical_compound, chemistry, Photodissociation, Troposphere, Outflow, Ozone layer, Convective storm detection, Ozone, Atmospheric sciences, Environmental science
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