Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0899.1 |
Causes of ENSO Weakening during the Mid-Holocene | |
Tian, Zhiping1,2; Li, Tim2,3,4; Jiang, Dabang1,3,4,5,6; Chen, Lin1,2 | |
2017-09-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The causes of the change in amplitude of El Nino-Southern Oscillation (ENSO) during the mid-Holocene were investigated by diagnosing the model simulations that participated in the Paleoclimate Modelling Intercomparison Project phases 2 and 3. Consistent with paleoclimate records, 20 out of the 28 models reproduced weaker-than-preindustrial ENSO amplitude during the mid-Holocene. Two representative models were then selected to explore the underlying mechanisms of air-sea feedback processes. A mixed layer heat budget diagnosis indicated that the weakened ENSO amplitude was primarily attributed to the decrease in the Bjerknes thermocline feedback, while the meridional advective feedback also played a role. During the mid-Holocene, the thermocline response to a unit anomalous zonal wind stress forcing in the equatorial Pacific weakened in both models because of the increased ENSO meridional scale. A further investigation revealed that the greater ENSO meridional width was caused by the strengthening of the Pacific subtropical cell, which was attributed to the enhanced mean trade wind that resulted from the intensified Asian and African monsoon rainfall and associated large-scale east-west circulation in response to the mid-Holocene orbital forcing. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407276600025 |
WOS关键词 | TROPICAL PACIFIC CLIMATE ; EL-NINO/SOUTHERN-OSCILLATION ; LAST GLACIAL MAXIMUM ; NINO-SOUTHERN-OSCILLATION ; SURFACE-TEMPERATURE ; INTERANNUAL VARIABILITY ; SEASONAL CYCLE ; MEAN STATE ; MODEL ; OCEAN |
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/20935 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China; 2.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 3.Nanjing Univ Informat Sci & Technol, Int Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China; 4.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China; 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; 6.Chengdu Univ Informat Technol, Joint Lab Climate & Environm Change, Chengdu, Sichuan, Peoples R China |
推荐引用方式 GB/T 7714 | Tian, Zhiping,Li, Tim,Jiang, Dabang,et al. Causes of ENSO Weakening during the Mid-Holocene[J]. JOURNAL OF CLIMATE,2017,30(17). |
APA | Tian, Zhiping,Li, Tim,Jiang, Dabang,&Chen, Lin.(2017).Causes of ENSO Weakening during the Mid-Holocene.JOURNAL OF CLIMATE,30(17). |
MLA | Tian, Zhiping,et al."Causes of ENSO Weakening during the Mid-Holocene".JOURNAL OF CLIMATE 30.17(2017). |
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