In this section
@article{Ceppi:2024:10.1029/2024gl110525,
author = {Ceppi, P and Myers, TA and Nowack, P and Wall, CJ and Zelinka, MD},
doi = {10.1029/2024gl110525},
journal = {Geophysical Research Letters},
title = {Implications of a Pervasive Climate Model Bias for LowCloud Feedback},
url = {http://dx.doi.org/10.1029/2024gl110525},
volume = {51},
year = {2024}
}
TY - JOUR
AB - <jats:title>Abstract</jats:title><jats:p>How low clouds respond to warming constitutes a key uncertainty for climate projections. Here we observationally constrain lowcloud feedback through a controlling factor analysis based on ridge regression. We find a moderately positive global lowcloud feedback (0.45 W , 90% range 0.18–0.72 W ), about twice the mean value (0.22 W ) of 16 models from the Coupled Model Intercomparison Project. We link this discrepancy to a pervasive model meanstate bias: models underestimate the lowcloud response to warming because (a) they systematically underestimate presentday tropical marine lowcloud amount, and (b) the lowcloud sensitivity to warming is proportional to this presentday lowcloud amount. Our results hence highlight the importance of reducing model biases in both the mean state of clouds and their sensitivity to environmental factors for accurate climate change projections.</jats:p>
AU - Ceppi,P
AU - Myers,TA
AU - Nowack,P
AU - Wall,CJ
AU - Zelinka,MD
DO - 10.1029/2024gl110525
PY - 2024///
SN - 0094-8276
TI - Implications of a Pervasive Climate Model Bias for LowCloud Feedback
T2 - Geophysical Research Letters
UR - http://dx.doi.org/10.1029/2024gl110525
VL - 51
ER -