Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2016.10.002 |
Madden-Julian Oscillation impacts on tropical African precipitation | |
Zaitchik, Benjamin F. | |
2017-02-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 184 |
文章类型 | Review |
语种 | 英语 |
国家 | USA |
英文摘要 | The Madden-Julian Oscillation (MJO) is the dominant mode of sub-seasonal climate variability in the global tropics. As such it represents an opportunity for intra-seasonal rainfall prediction and, perhaps, for explaining dynamics that underlie longer term variability and trends. This opportunity is of substantial interest for tropical Africa, where rainfall variability has significant impacts on agriculture, energy, and natural ecosystems. The objective of this review paper is to inventory and assess the state of knowledge of MJO influence on African rainfall. A number of studies have identified statistical links between MJO and sub-seasonal rainfall variability in West, East, and Southern Africa. The proposed mechanisms to explain this influence differ by region and by season, and they often involve multiscale interactions between local precipitation processes and MJO-associated atmospheric dynamics. Dynamically-based forecast systems have some skill in predicting MJO evolution to time horizons of 3-4 weeks, and some can capture teleconnections to Africa. On longer time scales, there is evidence that MJO activity both modulates and is modulated by the El Nino Southern Oscillation and the Indian Ocean Dipole. The implications of these interactions for MJO connections to Africa require further research, as does the potential for trends in MJO behavior and impacts on Africa under global climate change. (C) 2016 Published by Elsevier B.V. |
英文关键词 | Madden-Julian Oscillation Africa Rainfall variability |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390499100009 |
WOS关键词 | NINO-SOUTHERN-OSCILLATION ; OUTGOING LONGWAVE RADIATION ; SEA-SURFACE TEMPERATURE ; EQUATORIAL EAST-AFRICA ; WESTERLY WIND BURSTS ; INDIAN-OCEAN DIPOLE ; INTRASEASONAL VARIABILITY ; EL-NINO ; INTERANNUAL VARIABILITY ; CLIMATE MODELS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
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/38607 |
专题 | 地球科学 |
作者单位 | Johns Hopkins Univ, Dept Earth & Planetary Sci, 301 Olin Hall,3400 N Charles St, Baltimore, MD 21218 USA |
推荐引用方式 GB/T 7714 | Zaitchik, Benjamin F.. Madden-Julian Oscillation impacts on tropical African precipitation[J]. ATMOSPHERIC RESEARCH,2017,184. |
APA | Zaitchik, Benjamin F..(2017).Madden-Julian Oscillation impacts on tropical African precipitation.ATMOSPHERIC RESEARCH,184. |
MLA | Zaitchik, Benjamin F.."Madden-Julian Oscillation impacts on tropical African precipitation".ATMOSPHERIC RESEARCH 184(2017). |
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