Sulfates, Clouds and Radiation America

Project Description
The primary objective of the SCAR-A experiment was to help scientists
characterize the the relationship between sulfate particles and
clouds' reflective properties. Sulfate aerosols are believed to
provide condensation nuclei, resulting in smaller, more numerous
droplets within a cloud. SCAR-A (America) was the first in a
series of experiments. It was followed by the SCAR-C experiment
conducted over California in 1994. A third experiment, SCAR-B
(Smoke, Clouds and Radiation-Brazil), was conducted in Brazil
during August and September 1995.

For more information, link to
[Summary provided by NASA]