Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032138 |
Topographic Influence on the African Easterly Jet and African Easterly Wave Energetics | |
Hamilton, H. L.1; Nunez Ocasio, K. M.1; Evans, J. L.1,2; Young, G. S.1; Fuentes, J. D.1 | |
2020-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The topography of eastern Africa, namely, the Ethiopian Highlands and Marrah Mountains have been shown to play a key role in the genesis of African Easterly Waves (AEWs) through convective initiation in that region. Topographic influences on the African Easterly Jet, evolution and energetics of AEWs, and rainfall production across northern tropical Africa are examined here. The Weather Research and Forecasting model is employed to simulate the climate over a 60-day period for three years (2004, 2005, and 2006) for three cases with varying topography: realistic, half-height, and no topography. An energetics analysis for the resulting AEWs reveals that wave development by barotropic and baroclinic processes weakens when topography is flattened. These results show that topography in Africa plays a significant role in the wave development as they propagate westward, not only in their initiation over East Africa. |
英文关键词 | African Easterly Waves African Easterly Jet topographic influences West African monsoon idealized numerical modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000530005500015 |
WOS关键词 | 3-DIMENSIONAL STRUCTURE ; WEST-AFRICA ; WEATHER SYSTEMS ; PHASE-III ; PART I ; DISTURBANCES ; ATLANTIC ; PRECIPITATION ; DYNAMICS ; MONSOON |
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/280202 |
专题 | 气候变化 |
作者单位 | 1.Penn State Univ, Dept Meteorol & Atmospher Sci, University Pk, PA 16802 USA; 2.Penn State Univ, Inst Computat & Data Sci, University Pk, PA 16802 USA |
推荐引用方式 GB/T 7714 | Hamilton, H. L.,Nunez Ocasio, K. M.,Evans, J. L.,et al. Topographic Influence on the African Easterly Jet and African Easterly Wave Energetics[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(8). |
APA | Hamilton, H. L.,Nunez Ocasio, K. M.,Evans, J. L.,Young, G. S.,&Fuentes, J. D..(2020).Topographic Influence on the African Easterly Jet and African Easterly Wave Energetics.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(8). |
MLA | Hamilton, H. L.,et al."Topographic Influence on the African Easterly Jet and African Easterly Wave Energetics".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.8(2020). |
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