Editing Cloud feedback (section)

=== Shortwave Feedback ===
The total shortwave (SW) part of the high cloud feedback is negative.

The impact of cloud area fraction on the shortwave feedback with warming is a topic of discussion, similar to the LW feedback.<ref name="Zelinka-2012" /> The SW high cloud feedback depends on the shot cloud area fraction due to its control of SW reflection. With a larger cloud area fraction more solar radiation can be reflected.<ref name="Zelinka-2010" /> A decreasing cloud fraction would lead to a positive SW feedback.<ref name="Zelinka-2012" /> It was found that the high cloud SW feedback is anticorrelated to the [[lapse rate]] feedback (the change of the temperature profile of the atmosphere with warming) which influences the cloud coverage.<ref name="Zelinka-2010" /> Therefore the high cloud SW feedback could be computed together with the lapse rate feedback to simplify the calculations in climate models. It is important to note, that this is a topic of ongoing discussion.<ref name="Zelinka-2010" />

The impact of the cloud height and optical thickness on the SW feedback is negative. A higher optical thickness due to warming, changes fore example the cloud particle size and density which then changes the reflectivity of the cloud and therefore impacts the SW feedback.<ref name="Ceppi-2017" />