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ABSTRACT

Tselioudis and Rossow 1994

Tselioudis, G., and W.B. Rossow, 1994: Global, multiyear variations of optical thickness with temperature in low and cirrus clouds. Geophys. Res. Lett., 21, 2211-2214, doi:10.1029/94GL02004.

The International Satellite Cloud Climatology Program (ISCCP) dataset is used to correlate variations of cloud optical thickness and cloud temperature in today's atmosphere. The analysis focuses on low and cirrus clouds. Cold low clouds show increases in cloud optical thickness with temperature consistent with adiabatic behavior, while warm low clouds show primarily decreases in cloud optical thickness with temperature. An exception are subtropical low clouds which, particularly during El Niño years, show a tendency for increases in optical thickness with temperature. In subtropical and tropical latitudes, cirrus cloud optical thickness shows a complicated behavior that could be related to changes in the dynamical regime in which the clouds are embeddded.

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