Enhanced production of stratospheric OH from methane oxidation at elevated reactive chlorine levels in northern midlatitudes

Autor:	Elizabeth Beaver Burnett, Clyde R. Burnett
Rok vydání:	1995
Předmět:	Atmospheric Science Chemistry Analytical chemistry chemistry.chemical_element Atmospheric sciences Chemical reaction Methane chemistry.chemical_compound Yield (chemistry) Anaerobic oxidation of methane Chlorine Environmental Chemistry Steady state (chemistry) Chlorine monoxide Stratosphere
Zdroj:	Journal of Atmospheric Chemistry. 21:13-41
ISSN:	1573-0662 0167-7764
DOI:	10.1007/bf00712436
Popis:	Examination of odd-hydrogen production and loss processes in the lower stratosphere reveals that the large abundances of midlatitude ClO recently measured requires a reassessment of the OH yield from methane oxidation due to a more rapid initiation of the methane oxidation sequence by atomic chlorine. Using a steady state calculation for OH and an iterative procedure for evaluating odd-hydrogen production from the methane oxidation sequence, we demonstrate that both OH and reactive chlorine are amplified below 25 km. The amplified values of OH and ClO are found to be consistent with recent measurements of ClO concentrations and of OH column abundances.
Databáze:	OpenAIRE
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