Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087788 |
Spring Barrier to the MJO Eastward Propagation | |
Li, Kuiping1,2; Yu, Weidong3,4; Yang, Yang1,2; Feng, Lin1,2; Liu, Shouhua5; Li, Lili1 | |
2020-06-09 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The Maritime Continent (MC) often exerts barrier effect on the eastward propagation of the Madden-Julian Oscillation (MJO), and the strongest (weakest) effect occurs in spring (winter). After passing over the MC, the MJO slightly weakens by approximately 10% in winter and it sharply decays by more than 50% in spring. The physics for this spring barrier are understood from the perspective of the frictionally coupled Kelvin-Rossby wave theory. In spring, the abrupt reduction in the boundary layer moisture convergence that occurs at the MC causes the decoupling of the Kelvin-Rossby wave packet associated with the MJO: Kelvin waves emit from the major convection, while Rossby wave component rapidly decays in the Indian Ocean. An intermediate atmospheric model involving both the fundamental dynamics of the frictionally coupled Kelvin-Rossby wave theory and the mean states confirms that the spring barrier is determined primarily by the mean surface moisture, particularly by its zonal distribution. |
英文关键词 | MJO Maritime Continent barrier |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551465400043 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; TROPICAL INTRASEASONAL OSCILLATION ; MARITIME CONTINENT ; LIFE-CYCLE ; PACIFIC ; MOISTURE ; SEASONALITY ; DYNAMICS ; TRACKING ; CLIMATE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/274390 |
专题 | 气候变化 |
作者单位 | 1.Minist Nat Resources, Inst Oceanog 1, Qingdao, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China; 3.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai Campus, Zhuhai, Peoples R China; 4.Natl Marine Data & Informat Serv, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Tianjin, Peoples R China; 5.Natl Marine Data & Informat Serv, Tianjin, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Kuiping,Yu, Weidong,Yang, Yang,et al. Spring Barrier to the MJO Eastward Propagation[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(13). |
APA | Li, Kuiping,Yu, Weidong,Yang, Yang,Feng, Lin,Liu, Shouhua,&Li, Lili.(2020).Spring Barrier to the MJO Eastward Propagation.GEOPHYSICAL RESEARCH LETTERS,47(13). |
MLA | Li, Kuiping,et al."Spring Barrier to the MJO Eastward Propagation".GEOPHYSICAL RESEARCH LETTERS 47.13(2020). |
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