Abstract
Weekly air samples were collected at Cape Kumakahi (0 km) and at nearby Mauna Loa Observatory (3.4 km) which is above the boundary layer. EC/GC and GC/FID techniques were used to measure CH3I, CHCl3, CO and CH4, which are largely natural in origin, and C2Cl4, CCl4, CH3, CCl3, CCl3F (F-11), CCl2F2 (F-12), CHClF2 (F-22) and C2F3Cl3 (F-113), which are due to anthropogenic activities. It was found that all these gases are significantly (α≤0.05) more abundant in the boundary layer than above it.
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References
Davis, D. D. (1980),Project GAMETAG: An Overview, J. Geophys. Res.85, 7285–7292.
Herbert, G. A. (ed.)Geophysical Monitoring for Climatic Change, No. 8 (U.S. Dept. of Commerce, NOAA, Boulder, Colorado 1980).
Hudson, R. D., andReed, Edith I.,The Stratosphere: Present and Future (NASA Publication 1049 Washington, D. C. 1979).
Miller, J. M., (1981),A Five-Year Climatology of Back Trajectories from the Mauna Loa Observatory, Hawaii. To appear in Atmospheric Environment.
Price, P., andPales, J. C. (1963),Mauna Loa Observatory: The First Five Years, Mon. Weather Rev., Oct.–Dec., 665–680.
Rasmussen, R. A., andKhalil, M. A. K.,Atmospheric Halocarbons: Measurements and Analyses of Selected Trace Gases in:Proceedings of the NATO Advanced Study Institute on Atmospheric Ozone (ed. A. C. Aikin) (U. S. Dept of Transportation, Washington, D. C. 1980).
Rasmussen, R. A., andKhalil, M. A. K. (1981),Atmospheric Methane (CH 4): Trends and Seasonal Cycles, J. Geophys. Res.,86, 9826–9832.
Rasmussen, R. A., andKhalil, M. A. K. (1981),Latitudinal Distributions of Trace Gases In and Above the Boundary Layer. To appear in Chemosphere.
Rasmussen, R. A., Rasmussen, L. E., Khalil, M. A. K., andDalluge, R. W. (1980),Concentration Distribution of Methyl Chloride in the Atmosphere, J. Geophys. Res.85, 7350–7357.
Reichle, H. G., Jr, andCondon, E. P. (1979),Vertical Profiles of CO and CH 4 in the Lower and Middle Troposphere Over the Eastern United States, January 1978 Geophys. Res. Lett.6, 949–951.
Snedecor, G. W., andCochran, W. G.,Statistical Methods (Iowa State University Press, Ames 1980).
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Rasmussen, R.A., Khalil, M.A.K. Differences in the concentrations of atmospheric trace gases in and above the tropical boundary layer. PAGEOPH 119, 990–997 (1981). https://doi.org/10.1007/BF00878964
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DOI: https://doi.org/10.1007/BF00878964