Large-scale atmospheric mixing as deduced from the seasonal and meridional variations of carbon dioxide
Article first published online: 7 DEC 2012
Copyright 1963 by the American Geophysical Union.
Journal of Geophysical Research
Volume 68, Issue 13, pages 3899–3920, 1 July 1963
How to Cite
1963), Large-scale atmospheric mixing as deduced from the seasonal and meridional variations of carbon dioxide, J. Geophys. Res., 68(13), 3899–3920, doi:10.1029/JZ068i013p03899., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 25 JAN 1963
Representative data on the variations of carbon dioxide in the atmosphere are presented. The data reveal a presumably natural source in the tropical oceanic areas and the industrial source of midlatitudes. Using a simple model of large-scale exchange, the meridional eddy exchange coefficient is computed to be about 3×1010 cm2 sec−1, and the meridional transport from tropical to north polar areas is computed to be about 2×1010 metric tons of carbon dioxide per year. An analysis of the seasonal variation shows that land vegetation north of 45°N is responsible for a net consumption of carbon dioxide of about 1.5×1010 tons during the vegetation period in summer. It is concluded that carbon dioxide is an excellent tracer for the study of atmospheric mixing processes. More data are needed, however, to make full use of it.