Diversity of North Pacific Meridional Mode and Its Distinct Impacts on El Niño‐Southern Oscillation
点击次数：发表时间：2021-12-07
- 影响因子：4.7
- DOI码：10.1029/2020GL088993
- 所属单位：浦项科学技术大学
- 发表刊物：Geophysical Research Letters
- 刊物所在地：美国
- 关键字：•The North Pacific Meridional Mode (NPMM) has strong spatial diversity that can be separated into two groups •These two types of the spring NPMM have distinct impacts on ENSO events in the following winter • We suggest an optimal pattern of the spring NPMM for ENSO prediction
- 摘要：Numerous studies have demonstrated that the North Pacific Meridional Mode (NPMM) plays an important role in determining El Niño‐Southern Oscillation (ENSO) events in the following winter season. However, little attention has been given to significant differences among its spatial patterns. Here we show that the NPMM exhibits a large diversity in spatial patterns, leading to distinct impacts on ENSO. Based on objective clustering analysis, two distinct spatial patterns of NPMM are detected. Cluster 1 (C1) NPMM exhibits a strong sea surface temperature dipole over the subtropical eastern Pacific and midlatitude central Pacific whereas Cluster 2 (C2) features a dipole over the subtropical eastern Pacific and equatorial cold tongue region. We find that the C1 NPMM is strongly linked to following ENSO events while the
C2 NPMM has no statistically significant relation. This gives new implications for ENSO dynamics and predictions. - 论文类型：期刊论文
- 学科门类：理学
- 文献类型：J
- 卷号：47
- 期号：e2020GL088993
- 是否译文：否
- 收录刊物：SCI
- 发表时间：2020-09-14