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Observational Constraints on the Cloud Feedback Pattern Effect
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2023
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Source: Journal of Climate (2023)
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Journal Title:Journal of Climate
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Description:Model evidence for the “pattern effect” assumes that global climate models (GCMs) faithfully simulate how clouds respond to varying sea surface temperature (SST) patterns and associated meteorological perturbations. We exploit time-invariant satellite-based estimates of the sensitivity of marine low clouds to meteorological perturbations to estimate how these clouds responded to time-varying SST patterns and meteorology between 1870 and 2014. GCMs and reanalyses provide estimates of the historical meteorological changes. Observations suggest that increasing estimated inversion strength (EIS) between 1980 and 2014 produced a negative low cloud feedback, opposite to the positive feedback expected from increasing CO2. This indicates that the processes responsible for marine cloud changes from 1980 to the near present are distinct from those associated with an increase in CO2.
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Source:Journal of Climate (2023)
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ISSN:0894-8755;1520-0442;
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Rights Information:Other
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Compliance:Library
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