Aerosols, Cloud Microphysics, and Fractional Cloudiness

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Science  15 Sep 1989:
Vol. 245, Issue 4923, pp. 1227-1230
DOI: 10.1126/science.245.4923.1227


Increases in aerosol concentrations over the oceans may increase the amount of low-level cloudiness through a reduction in drizzle—a process that regulates the liquid-water content and the energetics of shallow marine clouds. The resulting increase in the global albedo would be in addition to the increase due to enhancement in reflectivity associated with a decrease in droplet size and would contribute to a cooling of the earth's surface.

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