Archives of the
Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

"Size Distribution and Scattering Phase Function of Aerosol Particles Retrieved from Sky Brightness Measurements," Y.J. Kaufman (NASA-Goddard, Code 913, Greenbelt MD 20771), A. Gitelson et al., J. Geophys. Res., 99(D5), 10,341-10,356, May 20, 1994.

Ground-based measurements of the solar transmission and sky radiance in a horizontal plane through the Sun were taken in several geographical regions of the world and various aerosol types (smoke, sulfate, dust, maritime aerosol). A combination of such measurements can be used to assess the direct forcing and climatic impact of aerosol, which can be validated in field experiments.

Two items from J. Geophys. Res., 98(D10), Oct. 20, 1993:

"A Theoretical Study of the Effect of Relative Humidity on Light Scattering by Tropospheric Aerosols," D. Hegg (Dept. Atmos. Sci., Univ. Washington, AK-40, Seattle WA 98195), T. Larson, P.-F. Yuen, 18,435-18,439. When the initial dry aerosol size distribution relative to the efficient light scattering particle size range is taken into account, rural aerosols have larger growth factors than those currently used in assessing the impact of aerosols.

"Comparison of Trends in the Tropospheric and Stratospheric Aerosol Optical Depths in the Antarctic," A. Herber (Wegener Inst. Polar & Mar. Res., Postfach 60 01 49, D-14401 Potsdam, Ger.), L.W. Thomason et al., 18,441-18,447. The stratospheric aerosol optical depth in the Antarctic represents about 25% of the total depth. Total optical depth shows no long-term trend for 1956-1988.

SPECIALIZED PAPERS

Two items from J. Geophys. Res., 98(D11), Nov. 20, 1993:

"Transport and Residence Times of Tropospheric Aerosols Inferred from a Global Three-Dimensional Simulation of 210Pb," Y.J. Balkanski (CEA-DSM, CE Saclay, Orme Merisiers, Gif-sur-Yvette Cedex, France), D.J. Jacob et al., 20,573-20,586.

"Atmospheric Nuclei in the Pacific Midtroposphere: Their Nature, Concentration, and Evolution," A.D. Clarke (Sch. Ocean & Earth Sci. & Technol., 1000 Pope Rd., Mar. Sci. 502, Univ. Hawaii, Honolulu HI 96822), 20,633-20,647.

"Aerosol Optical Thickness and Atmospheric Path Radiance," Y.J. Kaufman (NASA-Goddard, Greenbelt MD 20771), ibid., 98(D2), 2677-2692, Feb. 20, 1993.

Two items from ibid., 98(D1), Jan. 20, 1993:

"Submicron Particle, Radon, and Soot Carbon Characteristics over the Northeast Atlantic," C.D. O'Dowd (UMIST, POB 88, Manchester M60 1QD, UK), M.H. Smith, 1123-1135.

"Physicochemical Properties of Aerosols over the Northeast Atlantic: Evidence for Wind-Speed-Related Submicron Sea-Salt Aerosol Production," C.D. O'Dowd (addr. immed. above), M.H. Smith, 1137-1149.

"Water Soluble Organic Constituents in Arctic Aerosols and Snow Pack," S.-M. Li (Atmos. Environ. Serv., 4905 Dufferin St., Downsview ON M3H 5T4, Can.), J.W. Winchester, Geophys. Res. Lett., 20(1), 45-48, Jan. 8, 1993. Quantifying the water soluble composition of aerosols may help in estimating their relative importance in radiative forcing.

"Origins of Atmospheric Particulate Matter over the North Sea and the Atlantic Ocean," R. Losno (UA CNRS 1404, Univ. Paris 7, 2 pl. Jussieu, 75251 Paris Cedex 05, France), G. Bergametti, P. Carlier, J. Atmos. Chem., 15(3&4), 333-352, Nov. 1992.