https://essopenarchive.org/doi/full/10.22541/essoar.168987132.26971477/v1
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- Authors
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- Bosong Zhang, Ming Zhao, Haozhe He, Brian Soden, Zhihong Tan,
Baoqiang Xiang, Chenggong Wang
Peer review timeline
20 Jul 2023Submitted to *ESS Open Archive *
<https://essopenarchive.org/inst/20904>
20 Jul 2023Published in *ESS Open Archive*
AbstractThis study investigates how climate sensitivity depends upon the
spatial pattern of radiative forcing. Sensitivity experiments using a
coupled ocean-atmosphere model were conducted by adding anomalous incoming
solar radiation over the entire globe, Northern Hemisphere mid-latitudes,
Southern Ocean, and tropics, respectively, with both positive and negative
perturbation considered. The varied forcing patterns led to highly
divergent climate sensitivities, with extratropical forcing inducing
significantly more global-mean temperature change compared to tropical
forcing. This dependence is particularly strong over the Southern
Hemisphere, where the climate is nearly twice as sensitive to Southern
Ocean forcing as tropical forcing. This dependence of climate sensitivity
on the location of radiative forcing stems from covariations between lapse
rate feedback, cloud feedback and tropospheric stability. These results
contrast with the conventional SST-pattern effect in which tropical surface
temperature changes regulate the climate sensitivity, and has important
implications for geoengineering and understanding the mechanisms of
paleoclimate change.
*Cite as: *Bosong Zhang, Ming Zhao, Haozhe He, et al. The Radiative Forcing
Pattern Effect on Climate Sensitivity. *ESS Open Archive .* July 20, 2023.
DOI: 10.22541/essoar.168987132.26971477/v1
<https://doi.org/10.22541/essoar.168987132.26971477/v1>
*Source: ESS Open Archive*
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