the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Sensitivity study of cloud parameterizations with relative dispersion in CAM5.1: impacts on aerosol indirect effects
He Zhang
Xiaodong Liu
Yiran Peng
Yangang Liu
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For 1 century, the hemispheric summer insolation is proposed as a key pacemaker of astronomical climate change. However, an increasing number of geologic records reveal that the low-latitude hydrological cycle shows asynchronous precessional evolutions that are very often out of phase with the summer insolation. Here, we propose that the astronomically driven low-latitude hydrological cycle is not paced by summer insolation but by shifting perihelion.
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Whether increased aerosol increases or decreases liquid cloud mass has been a longstanding question. Observed correlations suggest that aerosols thin liquid cloud, but we are able to show that observations were consistent with an increase in liquid cloud in response to aerosols by leveraging a model where causality could be traced.