In this section
@article{Kang:2023:10.1073/pnas.2300881120,
author = {Kang, SM and Yu, Y and Deser, C and Zhang, X and Kang, I-S and Lee, S-S and Rodgers, KB and Ceppi, P},
doi = {10.1073/pnas.2300881120},
journal = {Proceedings of the National Academy of Sciences},
pages = {1--10},
title = {Global impacts of recent Southern Ocean cooling},
url = {http://dx.doi.org/10.1073/pnas.2300881120},
volume = {120},
year = {2023}
}
TY - JOUR
AB - Since the beginning of the satellite era, Southern Ocean sea surface temperatures (SSTs) have cooled, despite global warming. While observed Southern Ocean cooling has previously been reported to have minimal impact on the tropical Pacific, the efficiency of this teleconnection has recently shown to be mediated by subtropical cloud feedbacks that are highly model-dependent. Here, we conduct a coupled model intercomparison of paired ensemble simulations under historical radiative forcing: one with freely evolving SSTs and the other with Southern Ocean SST anomalies constrained to follow observations. We reveal a global impact of observed Southern Ocean cooling in the model with stronger (and more realistic) cloud feedbacks, including Antarctic sea–ice expansion, southeastern tropical Pacific cooling, northward-shifted Hadley circulation, Aleutian low weakening, and North Pacific warming. Our results therefore suggest that observed Southern Ocean SST decrease might have contributed to cooler conditions in the eastern tropical Pacific in recent decades.
AU - Kang,SM
AU - Yu,Y
AU - Deser,C
AU - Zhang,X
AU - Kang,I-S
AU - Lee,S-S
AU - Rodgers,KB
AU - Ceppi,P
DO - 10.1073/pnas.2300881120
EP - 10
PY - 2023///
SN - 0027-8424
SP - 1
TI - Global impacts of recent Southern Ocean cooling
T2 - Proceedings of the National Academy of Sciences
UR - http://dx.doi.org/10.1073/pnas.2300881120
UR - http://hdl.handle.net/10044/1/106430
VL - 120
ER -