Interhemispheric asymmetry in OH abundance inferred from measurements of atmospheric (C-14)O

Details Interhemispheric asymmetry in OH abundance inferred from measurements of atmospheric (C-14)O Interhemispheric asymmetry in OH abundance inferred from measurements of atmospheric (C-14)O

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.356...50b&link_type=abstract

Nature (ISSN 0028-0836), vol. 356, March 5, 1992, p. 50-52.

Computer Science

42

Abundance, Atmospheric Composition, Carbon Monoxide, Carbon 14, Hydroxyl Radicals, Atmospheric Chemistry, Trace Contaminants

Scientific paper

Atmospheric (C-14)O is an important diagnostic of atmospheric OH abundance. An extensive set of (C-14)O data based on accelerometer mass spectrometry is presented. It is found that Southern Hemisphere (C-14)O concentrations are about 40 percent lower than at comparable latitudes in the Northern Hemisphere. Such a large difference is surprising because the dominant sources and sinks are believed to be similar in both hemispheres. Although there are several complicating factors, it is suggested based on these results that OH abundances may be significantly higher in the Southern Hemisphere than in the Northern Hemisphere, in contrast to predictions using current photochemical models.

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