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DOI | 10.1029/2020GL091239 |
Zonal‐scale of the Madden‐Julian Oscillation and its propagation speed on the interannual time‐scale | |
Mengxia Lyu; Xianan Jiang; Zhiwei Wu; Daehyun Kim; Á; ngel F. Adames | |
2021-02-09 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | While no significant long‐term trend in the propagation speed of the Madden‐Julian Oscillation (MJO) in boreal winter is found during the past decades, pronounced year‐to‐year variability of the MJO phase speed is illustrated by analyzing a century‐long record dataset. During the winters when fast MJO propagation is observed, the MJO exhibits a much larger zonal‐scale than that during the winters with slow propagation. A broader extension in MJO circulation effectively induces stronger and broader lower‐tropospheric moistening (drying) to the east (west) of MJO through horizontal moisture advection, prompting a faster MJO phase speed. The larger MJO zonal‐scale during the fast MJO propagation winters is coincident with anomalously increased background sea surface temperatures and precipitable water over both the western Indian Ocean and central/eastern Pacific, reminiscent of an expansion of the Indo‐Pacific warm pool. A fundamental question remains open regarding the key processes that determine the zonal‐scale of MJO organization. This article is protected by copyright. All rights reserved. |
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/313866 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Mengxia Lyu,Xianan Jiang,Zhiwei Wu,等. Zonal‐scale of the Madden‐Julian Oscillation and its propagation speed on the interannual time‐scale[J]. Geophysical Research Letters,2021. |
APA | Mengxia Lyu,Xianan Jiang,Zhiwei Wu,Daehyun Kim,Á,&ngel F. Adames.(2021).Zonal‐scale of the Madden‐Julian Oscillation and its propagation speed on the interannual time‐scale.Geophysical Research Letters. |
MLA | Mengxia Lyu,et al."Zonal‐scale of the Madden‐Julian Oscillation and its propagation speed on the interannual time‐scale".Geophysical Research Letters (2021). |
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