Variability of the Pacific subtropical cells under global warming in CMIP6 models

doi:10.1007/s00343-023-2315-2

IOCAS-IR > 海洋环流与波动重点实验室

	Variability of the Pacific subtropical cells under global warming in CMIP6 models
	Han, Xue 1,2,3,4; Feng, Junqiao 1,2,4,5; Lu, Yunlong 1,2,3,4; Hu, Dunxin 1,2,4,5
	2023-09-23
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	17
通讯作者	Feng, Junqiao(fengjunqiao@qdio.ac.cn)
摘要	The Pacific subtropical cells (STCs) are shallow meridional overturning circulations connecting the tropics and subtropics, and are assumed to be an important driver of the tropical Pacific decadal variability. The variability of STCs under global warming is investigated using multimodal outputs from the latest phase of the Coupled Model Inter-comparison Project (CMIP6) and ocean reanalysis products. Firstly, the volume transport diagnostic analysis is employed to evaluate how coupled models and ocean reanalysis products reproduce interior STC transport. The variation of heat transport by the interior STC under the high-emissions warming scenarios is also analyzed. The results show that the multimodal-mean linear trends of the interior STC transport along 9 & DEG;S and 9 & DEG;N are -0.02 Sv/a and 0.04 Sv/a under global warming, respectively, which is mainly due to the combined effect of the strengthened upper oceanic stratification and the weakening of wind field. There is a compensation relationship between the interior STC and the western boundary transport in the future climate, and the compensation relationship of 9 & DEG;S is more significant than that of 9 & DEG;N. In addition, compared with ocean reanalysis products, the coupled models tend to underestimate the variability of the interior STC transport convergence, and thus may lose some sea surface temperature (SST) driving force, which may be the reason for the low STC-SST correlation simulated by the model. The future scenario simulation shows that the heat transport of interior STC is weakened under global warming, with a general agreement across models.
关键词	interior subtropical cell (STC) global warming Coupled Model Inter-comparison Project (CMIP6) western boundary transport
DOI	10.1007/s00343-023-2315-2
收录类别	SCI
语种	英语
资助项目	The authors would like to thank Dr. Qingye WANG of the Institute of Oceanology, Chinese Academy of Sciences for their useful discussion during this study. We also thank the editor and anonymous reviewers, whose constructive suggestions and comments lead to
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:001070378500001
出版者	SCIENCE PRESS
WOS关键词	MERIDIONAL OVERTURNING CIRCULATION ; DECADAL VARIABILITY ; TEMPERATURE ANOMALIES ; TROPICAL CELLS ; HEAT-TRANSPORT ; CLIMATE-CHANGE ; OCEAN ; EXCHANGES ; TRITIUM
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/181796
专题	海洋环流与波动重点实验室
通讯作者	Feng, Junqiao
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 5.Qingdao Pilot Natl Lab Marine Sci & Technol, Lab Ocean Dynam & Climate, Qingdao 266237, Peoples R China
第一作者单位	海洋环流与波动重点实验室; 中国科学院海洋研究所
通讯作者单位	海洋环流与波动重点实验室; 中国科学院海洋研究所
推荐引用方式 GB/T 7714	Han, Xue,Feng, Junqiao,Lu, Yunlong,et al. Variability of the Pacific subtropical cells under global warming in CMIP6 models[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2023:17.
APA	Han, Xue,Feng, Junqiao,Lu, Yunlong,&Hu, Dunxin.(2023).Variability of the Pacific subtropical cells under global warming in CMIP6 models.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,17.
MLA	Han, Xue,et al."Variability of the Pacific subtropical cells under global warming in CMIP6 models".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2023):17.