Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-18-0209.1 |
Contributions of Atmosphere-Ocean Interaction and Low-Frequency Variation to Intensity of Strong El Nino Events since 1979 | |
Li, Xiaofan1; Hu, Zeng-Zhen2; Huang, Bohua3,4 | |
2019-03-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:5页码:1381-1394 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Evolutions of oceanic and atmospheric anomalies in the equatorial Pacific during four strong El Ninos (1982/83, 1991/92, 1997/98, and 2015/16) since 1979 are compared. The contributions of the atmosphere-ocean coupling to El Nino-associated sea surface temperature anomalies (SSTA) are identified and their association with low-level winds as well as different time-scale variations is examined. Although overall SSTA in the central and eastern equatorial Pacific is strongest and comparable in the 1997/98 and 2015/16 El Ninos, the associated subsurface ocean temperature as well as deep convection and surface wind stress anomalies in the central and eastern equatorial Pacific are weaker during 2015/16 than that during 1997/98. That may be associated with a variation of the wind-SST and wind-thermocline interactions. Both the wind-SST and wind-thermocline interactions play a less important role during 2015/16 than during 1997/98. Such differences are associated with the differences of the low-level westerly wind as well as the contribution of different time-scale variations in different events. Similar to the interannual time-scale variation, the intraseasonal-interseasonal time-scale component always has positive contributions to the intensity of all four strong El Ninos. Interestingly, the role of the interdecadal-trend time-scale component varies with event. The contribution is negligible during the 1982/83 El Nino, negative during the 1997/98 El Nino, and positive during the 1991/92 and 2015/16 El Ninos. Thus, in addition to the atmosphere-ocean coupling at intraseasonal to interannual time scales, interdecadal and longer time-scale variations may play an important and sometimes crucial role in determining the intensity of El Nino. |
英文关键词 | Climate variability Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457453100003 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; EMPIRICAL MODE DECOMPOSITION ; WESTERLY WIND BURSTS ; TROPICAL PACIFIC ; RECHARGE PARADIGM ; OSCILLATOR MODEL ; ENSO VARIABILITY ; MIXED-LAYER ; HEAT-BUDGET ; EVOLUTION |
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/19819 |
专题 | 气候变化 |
作者单位 | 1.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China; 2.NOAA, Climate Predict Ctr, NCEP, NWS, College Pk, MD USA; 3.George Mason Univ, Coll Sci, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA; 4.George Mason Univ, Coll Sci, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA |
推荐引用方式 GB/T 7714 | Li, Xiaofan,Hu, Zeng-Zhen,Huang, Bohua. Contributions of Atmosphere-Ocean Interaction and Low-Frequency Variation to Intensity of Strong El Nino Events since 1979[J]. JOURNAL OF CLIMATE,2019,32(5):1381-1394. |
APA | Li, Xiaofan,Hu, Zeng-Zhen,&Huang, Bohua.(2019).Contributions of Atmosphere-Ocean Interaction and Low-Frequency Variation to Intensity of Strong El Nino Events since 1979.JOURNAL OF CLIMATE,32(5),1381-1394. |
MLA | Li, Xiaofan,et al."Contributions of Atmosphere-Ocean Interaction and Low-Frequency Variation to Intensity of Strong El Nino Events since 1979".JOURNAL OF CLIMATE 32.5(2019):1381-1394. |
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