ENSO Asymmetry in the CAMS-CSM

doi:10.1007/s13143-018-00102-9

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	ENSO Asymmetry in the CAMS-CSM
	Hua, Lijuan 1; Chen, Lin 2,3,4
通讯作者	Hua, Lijuan(hualj@cma.gov.cn)
	2019-08-01
发表期刊	ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES
ISSN	1976-7633
卷号	55 期号:3 页码:507-528
摘要	This study presents an overview of El Nino-Southern Oscillation (ENSO) asymmetry using the Chinese Academy of Meteorological Sciences climate system model (CAMS-CSM). We discover that the coupled run of the CAMS-CSM has an obvious bias of ENSO opposite-sign asymmetry compared to observation, mainly in the eastern Pacific. Further analysis shows that the spatial distributions of sea surface temperature anomalies (SSTA) during both phases of the ENSO present individual biases, consisting of a warmer field during the warm phase and a colder field during the cold phase, in comparison with observation. The bias of ENSO asymmetry during both phases is partly due to the unrealistic simulation of shortwave (SW) radiation flux and the corresponding total cloud cover (TCC). The Atmospheric Model Intercomparison Project (AMIP) run demonstrates that biases of the SW radiation flux and the associated TCC originate in the atmospheric component of the model, which could be attributed to its unrealistic cloud microphysical scheme. Through air-sea interaction, these biases are amplified significantly during both ENSO phases of the coupled run. Moreover, another cause for the bias of ENSO asymmetry during the warm phase is the relatively slow decay of the ENSO in the simulation, with the thermocline anomalies propagating eastward more slowly. The bias of ENSO asymmetry in the cold phase is attributed to oceanic internal dynamic advection, mainly associated with zonal and meridional terms. Further analysis also highlights the essential role of reasonably representing the climatological mean state in ENSO model simulation.
关键词	ENSO asymmetry Shortwave radiation flux Oceanic internal dynamic advection
DOI	10.1007/s13143-018-00102-9
关键词[WOS]	EL-NINO ; INDIAN-OCEAN ; FEEDBACK PROCESSES ; MODEL ; TRANSITION ; SIMULATION ; RECTIFICATION ; NONLINEARITY ; VARIABILITY ; ANOMALIES
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41606011] ; National Key Research and Development Program of China[2016YFE0102400] ; National Key Research and Development Program of China[2016YFA0600602] ; Basic Scientific Research and Operation Foundation of CAMS[2017Y007] ; Major Program of National Natural Science Foundation of China[91637210] ; Startup Foundation for Introducing Talent of NUIST ; open fund of State Key Laboratory of Loess and Quartary Geology[SKLLQG1802] ; LASG open project
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Basic Scientific Research and Operation Foundation of CAMS ; Major Program of National Natural Science Foundation of China ; Startup Foundation for Introducing Talent of NUIST ; open fund of State Key Laboratory of Loess and Quartary Geology ; LASG open project
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000477569700015
出版者	KOREAN METEOROLOGICAL SOC
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13664
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Hua, Lijuan
作者单位	1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather LASW, Beijing 100081, Peoples R China 2.Nanjing Univ Informat Sci & Technol, CIC FEMD, Joint Int Res Lab Climate & Environm Change ILCEC, Key Lab Meteorol Disaster,Minist Educ KLME, Nanjing, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Hua, Lijuan,Chen, Lin. ENSO Asymmetry in the CAMS-CSM[J]. ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES,2019,55(3):507-528.
APA	Hua, Lijuan,&Chen, Lin.(2019).ENSO Asymmetry in the CAMS-CSM.ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES,55(3),507-528.
MLA	Hua, Lijuan,et al."ENSO Asymmetry in the CAMS-CSM".ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES 55.3(2019):507-528.