Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4496-5 |
Drivers of reduced ENSO variability in mid-Holocene in a coupled model | |
Chen, Lin1,2,3,4; Wang, Lu1,2,3,4; Li, Tim1,3,4; Liu, Jian5,6,7 | |
2019-05-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:5999-6014 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The drivers of El Nino-Southern Oscillation (ENSO) intensity change during the mid-Holocene (MH) are investigated through employing a coupled model that exhibits excellent performance in simulating the present-day ENSO behaviors. The model shows a 28% decrease in ENSO intensity in the MH simulation compared to the pre-industrial (PI) simulation, showing an agreement with the ranges indicated by the paleo-proxies. Based on quantitative analyses, we reveal that the changes in the oceanic dynamic processes (including the thermocline, zonal-advection, and Ekman feedback terms, in the order from being most to least important) were the major drivers of the reduced ENSO intensity in the MH. Further diagnosis analyses show that the weakening in all three oceanic dynamic terms could be traced back to the weakened thermocline response to zonal wind stress anomaly in the MH compared to that in the PI. Such weakened thermocline response was due to the relatively flattened meridional structure of ENSO-related interannual anomaly field (e.g., zonal wind stress anomaly field) in the MH, which arose from the strengthening of the mean meridional overturning circulation, namely, the mean Pacific subtropical cell (STC). The process-oriented analyses throughout this study suggest a critical linkage between ENSO intensity change and mean STC change in the MH, through documenting how the mean STC change altered the oceanic dynamic processes and thus drove the ENSO intensity change. |
英文关键词 | ENSO variability change Mid-Holocene simulation Air-sea feedback |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465441400052 |
WOS关键词 | TROPICAL PACIFIC CLIMATE ; EL-NINO/SOUTHERN OSCILLATION ; LAST GLACIAL MAXIMUM ; SOUTHERN-OSCILLATION ; SYSTEM MODEL ; OCEAN ; NINO ; STABILITY ; SUPPRESSION ; FEEDBACKS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182628 |
专题 | 气候变化 |
作者单位 | 1.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; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Shandong, Peoples R China; 3.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA; 5.Nanjing Normal Univ, Sch Geog Sci, Jiangsu Prov State Key Lab Cultivat Base Geog Env, Minist Educ,Key Lab Virtual Geog Environm, Nanjing, Jiangsu, Peoples R China; 6.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Jiangsu, Peoples R China; 7.Nanjing Normal Univ, Sch Math Sci, Jiangsu Prov Key Lab Numer Simulat Large Scale Co, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Lin,Wang, Lu,Li, Tim,et al. Drivers of reduced ENSO variability in mid-Holocene in a coupled model[J]. CLIMATE DYNAMICS,2019,52:5999-6014. |
APA | Chen, Lin,Wang, Lu,Li, Tim,&Liu, Jian.(2019).Drivers of reduced ENSO variability in mid-Holocene in a coupled model.CLIMATE DYNAMICS,52,5999-6014. |
MLA | Chen, Lin,et al."Drivers of reduced ENSO variability in mid-Holocene in a coupled model".CLIMATE DYNAMICS 52(2019):5999-6014. |
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