University of Cambridge > Talks.cam > Centre for Atmospheric Science seminars, Chemistry Dept. > Analysis of clouds and cloud-aerosol interactions with satellite data and general circulation models

Analysis of clouds and cloud-aerosol interactions with satellite data and general circulation models

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Aerosol indirect effects, the influence of anthropogenic aerosols serving as cloud condensation nuclei on cloud properties and subsequently planetary albedo, constitute one of the largest uncertainties among anthropogenic climate forcings. Satellite data are useful to constrain aerosol-cloud interaction parameterizations in general circulation models. On the other hand, models may help to interpret statistical relationships between aerosol and cloud properties found from satellite data analysis. An overview is given of studies using statistical relationships between cloud and radiation properties and aerosol concentration as derived from satellite data to constrain GCM parameterizations of aerosol indirect effects. Conversely, the strongly positive relationship found in satellite data between cloud cover and aerosol optical depth is interpreted using sensitivity studies with a GCM .

This talk is part of the Centre for Atmospheric Science seminars, Chemistry Dept. series.

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