Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/joc.4017 |
Effects of the subtropical anticyclones over North Africa and Arabian Peninsula on the African easterly jet | |
Spinks, James1; Lin, Yuh-Lang1,2; Mekonnen, Ademe1 | |
通讯作者 | Lin, Yuh-Lang |
来源期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2015 |
卷号 | 35期号:5页码:733-745 |
英文摘要 | North African climate is analysed between 1979 and 2010 with an emphasis on August using the European Center for Medium-Range Weather Forecast (ECMWF) global dataset to investigate the effects of the subtropical anticyclones over North Africa and the Arabian Peninsula on the African easterly jet (AEJ). It was found that the AEJ encloses a core with a local wind maximum (LWM) in both West and East Africa, in which the west LWM core has a higher zonal wind speed. The strength of both cores is distinctly different by way of thermal wind balance. As found in previous studies, the AEJ is formed through baroclinicity with influence from Saharan lower level heating along and to the north of the Intertropical Front (ITF). As there are two separate anticyclonic centres, the AEJ is maintained by the anticyclonic systems in West Africa, East Africa as well as the Arabian Peninsula. The presence of these two anticyclonic centres provides the AEJ with two separate core maxima with the western LWM located at 15 degrees W, 17 degrees N and the eastern LWM located at 35 degrees E, 15 degrees N for August. |
英文关键词 | African easterly jet African easterly wave local wind maximum East Africa Arabian Peninsula Sahara Desert ECMWF Ethiopian Highlands |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000352557700007 |
WOS关键词 | AIRCRAFT OBSERVATIONS ; WAVES ; CIRCULATION ; MAINTENANCE ; ORIGIN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187951 |
作者单位 | 1.N Carolina Agr & Tech State Univ, Dept Energy & Environm Syst, Greensboro, NC 27411 USA; 2.N Carolina Agr & Tech State Univ, Dept Phys, Greensboro, NC 27411 USA |
推荐引用方式 GB/T 7714 | Spinks, James,Lin, Yuh-Lang,Mekonnen, Ademe. Effects of the subtropical anticyclones over North Africa and Arabian Peninsula on the African easterly jet[J],2015,35(5):733-745. |
APA | Spinks, James,Lin, Yuh-Lang,&Mekonnen, Ademe.(2015).Effects of the subtropical anticyclones over North Africa and Arabian Peninsula on the African easterly jet.INTERNATIONAL JOURNAL OF CLIMATOLOGY,35(5),733-745. |
MLA | Spinks, James,et al."Effects of the subtropical anticyclones over North Africa and Arabian Peninsula on the African easterly jet".INTERNATIONAL JOURNAL OF CLIMATOLOGY 35.5(2015):733-745. |
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