Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095204 |
Mode of precipitation variability generated by coupling of ENSO with seasonal cycle in the tropical Pacific | |
Yoshihiro Fukuda; Masahiro Watanabe; Fei-Fei Jin | |
2021-08-12 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Tropical precipitation anomalies show very different patterns over the central-eastern equatorial Pacific between the developing and decay phases of extreme El Niño despite similar patterns of sea surface temperature (SST) anomalies. Using observational data and atmospheric simulations for 1979-2018, we identified a meridional dipole mode of tropical precipitation variability, called the Pacific precipitation dipole mode (PPDM), which is critical for seasonally varying rainfall patterns related to extreme El Niño. We examined the mechanism of PPDM using a numerical model, and found that the seasonal shift of the warm SST band in the eastern equatorial Pacific, when coupled with extreme SST anomalies, causes phase reversal of the PPDM. The PPDM can be regarded as a different manifestation of the ENSO combination mode, as revealed by the surface wind anomalies, which also explains the distinct impact of extreme El Niño events over East Asia. |
领域 | 气候变化 |
URL | 查看原文 |
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/335800 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yoshihiro Fukuda,Masahiro Watanabe,Fei-Fei Jin. Mode of precipitation variability generated by coupling of ENSO with seasonal cycle in the tropical Pacific[J]. Geophysical Research Letters,2021. |
APA | Yoshihiro Fukuda,Masahiro Watanabe,&Fei-Fei Jin.(2021).Mode of precipitation variability generated by coupling of ENSO with seasonal cycle in the tropical Pacific.Geophysical Research Letters. |
MLA | Yoshihiro Fukuda,et al."Mode of precipitation variability generated by coupling of ENSO with seasonal cycle in the tropical Pacific".Geophysical Research Letters (2021). |
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