Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073475 |
The role of South Pacific atmospheric variability in the development of different types of ENSO | |
You, Yujia; Furtado, Jason C. | |
2017-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent advances in tropical Pacific climate variability have focused on understanding the development of El Nino-Southern Oscillation (ENSO) events, specifically the types or "flavors" of ENSO (i.e., central versus eastern Pacific events). While precursors to ENSO events exist, distinguishing the particular flavor of the expected ENSO event remains unresolved. This study offers a new look at ENSO predictability using South Pacific atmospheric variability during austral winter as an indicator. The positive phase of the leading mode of South Pacific sea level pressure variability, which we term the South Pacific Oscillation (SPO), exhibits a meridional dipole with with a(n) (anti)cyclonic anomaly dominating the subtropics (extratropics/high latitudes). Once energized, the cyclonic anomalies in the subtropical node of the SPO weaken the southeasterly trade winds and promote the charging of the eastern equatorial Pacific Ocean, giving rise to eastern Pacific ENSO events. Indeed, the type of ENSO event can be determined accurately using only the magnitude and phase of the SPO during austral winter as a predictor (17 out of 23 cases). The SPO may also play a role in explaining the asymmetry of warm and cold events. Collectively, our findings present a new perspective on ENSO-South Pacific interactions that can advance overall understanding of the ENSO system and enhance its predictability across multiple timescales. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500039 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; EL-NINO ; EQUATORIAL PACIFIC ; NORTH PACIFIC ; MERIDIONAL MODES ; LA-NINA ; OCEAN ; CLIMATE ; DISTINGUISH ; ANOMALIES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28434 |
专题 | 气候变化 |
作者单位 | Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | You, Yujia,Furtado, Jason C.. The role of South Pacific atmospheric variability in the development of different types of ENSO[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | You, Yujia,&Furtado, Jason C..(2017).The role of South Pacific atmospheric variability in the development of different types of ENSO.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | You, Yujia,et al."The role of South Pacific atmospheric variability in the development of different types of ENSO".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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