The impact of oceanic processes on the transient climate response: a tidal forcing experiment

IOCAS-IR

	The impact of oceanic processes on the transient climate response: a tidal forcing experiment
	Yi Yu ; Hailong Liu ; Pengfei Lin ; Jian Lan
发表期刊	Acta Oceanologica Sinica
ISSN	0253-505X
	2020-01-15
出版年	2020
卷号	v.39 期号:01 页码:56-66
文献类型	CNKI期刊论文
摘要	In this study, the impact of oceanic processes on the sensitivity of transient climate change is investigated using two sets of coupled experiments with and without tidal forcing, which are termed Exp_Tide and Exp_Control,respectively. After introducing tidal forcing, the transient climate response(TCR) decreases from 2.32 K to 1.90 K,and the surface air temperature warming at high latitudes decreases by 29%. Large ocean heat uptake efficiency and heat storage can explain the low TCR in Exp_Tide. Approximately 21% more heat is stored in the ocean in Exp_Tide(1.10×10~(24) J) than in Exp_Control(0.91×10~(24) J). Most of the large ocean warming occurs in the upper 1 000 m between 60°S and 60°N, primarily in the Atlantic and Southern Oceans. This ocean warming is closely related to the Atlantic Meridional Overturning Circulation(AMOC). The initial transport at mid-and high latitudes and the decline in the AMOC observed in Exp_Tide are both larger than those observed in Exp_Control. The spatial structures of AMOC are also different with and without tidal forcing in present experiments. The AMOC in Exp_Tide has a large northward extension. We also investigated the relationship between AMOC and TCR suggested by previous studies using the present experiments.
关键词	tidal forcing transient climate response ocean heat uptake Atlantic Meridional Overturning Circulation
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A009;A010;
CNKI专题名称	气象学;海洋学;
分类号	P732.6
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	The National Key Research and Development Program for Developing Basic Sciences under contract Nos2016YFC1401401 and 2016YFC1401601 ; the “Strategic Priority Research Program” of the Chinese Academy of Sciences under contract Nos XDA11010304,XDA05110302 and XDC01040100 ; the National Natural Science Foundation of China under contract Nos41576026,41576025,41776030 and 41931183
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188337
专题	中国科学院海洋研究所
作者单位	1.SouthernMarineScienceandEngineeringGuangdongLaboratory(Zhuhai) 2.StateKeyLaboratoryofSatelliteOceanEnvironmentDynamics,SecondInstituteofOceanography,MinistryofNaturalResources 3.StateKeyLaboratoryofNumericalModelingforAtmosphericSciencesandGeophysicalFluidDynamics,InstituteofAtmosphericPhysics,ChineseAcademyofSciences 4.CollegeofEarthSciences,UniversityofChineseAcademyofSciences 5.CenterforOceanMega-Science,ChineseAcademyofSciences 6.CollegeofOceanicandAtmosphericSciences,OceanUniversityofChina
推荐引用方式 GB/T 7714	Yi Yu,Hailong Liu,Pengfei Lin,et al. The impact of oceanic processes on the transient climate response: a tidal forcing experiment. 2020.