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DOI | 10.1175/JCLI-D-17-0849.1 |
Assessing Extratropical Influence on Observed El Nino-Southern Oscillation Events Using Regional Coupled Data Assimilation | |
Lu, Feiyu1,2,4,5; Liu, Zhengyu3 | |
2018-11-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:21页码:8961-8969 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The extratropical influence on the observed events of El Nino-Southern Oscillation (ENSO) variability from 1948 to 2015 is assessed by constraining the extratropical atmospheric variability in a coupled general circulation model (CGCM) using the regional coupled data assimilation (RCDA) method. The ensemble-mean ENSO response to extratropical atmospheric forcing, which is systematically and quantitatively studied through a series of RCDA experiments, indicates robust extratropical influence on some observed ENSO events. Furthermore, an event-by-event quantitative analysis shows significant differences of the extratropical influence among the observed ENSO events, both in its own strength and in its relation to tropical precursors such as the equatorial Pacific heat content anomaly. This study provides the first dynamic quantitative assessment of the extratropical influence on observed ENSO variability on an event-by-event basis. |
英文关键词 | ENSO Teleconnections Coupled models Data assimilation Tropical variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448249300004 |
WOS关键词 | PACIFIC MERIDIONAL MODE ; SEASONAL FOOTPRINTING MECHANISM ; ATMOSPHERIC VARIABILITY ; ANNUAL CYCLE ; ENSO ; ENSEMBLE ; REANALYSIS ; FORECAST ; CLIMATE ; IMPACT |
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/20866 |
专题 | 气候变化 |
作者单位 | 1.Univ Wisconsin, Nelson Inst Ctr Climat Res, Madison, WI 53706 USA; 2.Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI 53706 USA; 3.Ohio State Univ, Dept Geog, Atmospher Sci Program, Columbus, OH 43210 USA; 4.Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08544 USA; 5.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA |
推荐引用方式 GB/T 7714 | Lu, Feiyu,Liu, Zhengyu. Assessing Extratropical Influence on Observed El Nino-Southern Oscillation Events Using Regional Coupled Data Assimilation[J]. JOURNAL OF CLIMATE,2018,31(21):8961-8969. |
APA | Lu, Feiyu,&Liu, Zhengyu.(2018).Assessing Extratropical Influence on Observed El Nino-Southern Oscillation Events Using Regional Coupled Data Assimilation.JOURNAL OF CLIMATE,31(21),8961-8969. |
MLA | Lu, Feiyu,et al."Assessing Extratropical Influence on Observed El Nino-Southern Oscillation Events Using Regional Coupled Data Assimilation".JOURNAL OF CLIMATE 31.21(2018):8961-8969. |
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