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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Examples of Mechanisms for Negative Cloud Feedback of Stratocumulus and Stratus in Cloud Parameterizations
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Examples of Mechanisms for Negative Cloud Feedback of Stratocumulus and Stratus in Cloud Parameterizations

机译：云参数化中层积云和层云负反馈的机制实例

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References(22) Cited-By(2) Supplementary materials(1) Mechanisms of cloud feedback for marine boundary layer clouds in GCMs (General Circulation Models) to the sea surface temperature increase, which can depend on parameterization, were investigated using single column model version of a GCM with two different low cloud schemes.Both schemes showed negative cloud feedbacks and they were attributed to the increase of the liquid water path (LWP) with the future climate forcing for stratocumulus and stratus. The mechanisms of the LWP increase in the two schemes were investigated respectively through simple numerical experiments. The experimental results imply that in the first scheme, the increase of saturation specific humidity due to the temperature increase in the future climate forcing contributes to the negative cloud feedback through the parameterization determining in-cloud cloud water content (CWC). The results also imply that the increase of latent heat flux in the future climate contributes to increased LWP and hence negative cloud feedback in the other scheme.
机译：参考文献（22）引用依据（2）补充材料（1）使用单列模型研究了GCM（通用环流模型）中海洋边界层云对海面温度升高的云反馈机制对海面温度升高的影响，机理取决于参数化。 GCM版本的GCM版本有两种不同的低云方案，两种方案均显示负云反馈，这归因于液态水路径（LWP）的增加以及未来对层积云和层云的强迫。通过简单的数值实验分别研究了两种方案中LWP增加的机理。实验结果表明，在第一个方案中，由于未来气候强迫中温度升高而导致的饱和比湿的增加通过确定云中云水含量（CWC）的参数化而导致了负云反馈。结果还暗示，未来气候中潜热通量的增加会导致LWP的增加，从而在另一种方案中产生负的云反馈。

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