In this section
@article{Kang:2025:10.1029/2025gl118688,
author = {Kang, H and Choi, Y},
doi = {10.1029/2025gl118688},
journal = {Geophysical Research Letters},
title = {Estimating Tropical UpperLevel Cloud Feedback Based on RadiativeConvective Equilibrium Framework},
url = {http://dx.doi.org/10.1029/2025gl118688},
volume = {52},
year = {2025}
}
TY - JOUR
AB - <jats:title>Abstract</jats:title> <jats:p> Tropical upperlevel cloud (TUC) feedback remains highly uncertain because TUC fraction and its radiative effect respond in complex ways to sea surface temperature (SST) warming. Using a radiative–convective equilibrium (RCE) model, we isolate the radiative impact of TUC changes by adjusting the relative occurrence of clouds and water vapor across the tropics. The resulting TUC feedback parameter, estimated from RCE experiments with observationally constrained versus CMIP6derived TUC fractions, is more negative for observational inputs (−1.66 to −1.24 W m <jats:sup>−2</jats:sup> K <jats:sup>−1</jats:sup> ) and spans a much broader range for CMIP6 inputs (−1.34 to +1.78 W m <jats:sup>−2</jats:sup> K <jats:sup>−1</jats:sup> ). The stronger negative feedback with observational inputs likely reflects a larger reduction in TUCs with SST warming. In contrast, CMIP6based parameters indicate weaker radiative effects of SSTdriven TUC reductions, suggesting that climate models may underestimate this negative feedback. </jats:p>
AU - Kang,H
AU - Choi,Y
DO - 10.1029/2025gl118688
PY - 2025///
SN - 0094-8276
TI - Estimating Tropical UpperLevel Cloud Feedback Based on RadiativeConvective Equilibrium Framework
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1029/2025gl118688
UR - https://doi.org/10.1029/2025gl118688
VL - 52
ER -