Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5917 |
Integrated climatology and trends in the subtropical Hadley cell, sunshine duration and cloud cover over South Africa | |
Mahlobo, D. D.1; Ndarana, T.2; Grab, S.1; Engelbrecht, F.1,3 | |
2019-03-30 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:4页码:1805-1821 |
文章类型 | Article |
语种 | 英语 |
国家 | South Africa |
英文摘要 | This study uses two methods to diagnose the local Hadley circulation; first the zonally averaged mass stream function, and second the stream function vector method. The two methods have been applied to the ERA-Interim reanalysis data for the period 1979-2015, to calculate both the climatology and trends of the Hadley cell. Both diagnostics advocate downwards mass flux being dominant over the subtropics, particularly over South Africa, yet the strength of Hadley is seasonal. Contrasts have been found between linear trends of the two diagnostics. Zonally symmetric diagnostics indicate strengthening of the Hadley cell, particularly in the subtropics of the Southern Hemisphere in winter and weakening in summer. The zonally asymmetric results indicate maximum strengthening of the Hadley over South Africa to be in spring and weakening in summer. Furthermore, maximum decrease in cloud cover and increase in sunshine duration over South Africa is in spring, implying more opportunities for solar energy generation. |
英文关键词 | Hadley circulation mass flux streamfunction sunshine duration total cloud cover |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465456400001 |
WOS关键词 | ENERGY ; CIRCULATION ; SURFACE |
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/181810 |
专题 | 气候变化 |
作者单位 | 1.Univ Witwatersrand, Sch Geog Archaeol & Environm Studies, Johannesburg, South Africa; 2.Univ Pretoria, Dept Geog Geoinformat & Meteorol, Pretoria, South Africa; 3.CSIR, Nat Resources & Environm, Pretoria, South Africa |
推荐引用方式 GB/T 7714 | Mahlobo, D. D.,Ndarana, T.,Grab, S.,et al. Integrated climatology and trends in the subtropical Hadley cell, sunshine duration and cloud cover over South Africa[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(4):1805-1821. |
APA | Mahlobo, D. D.,Ndarana, T.,Grab, S.,&Engelbrecht, F..(2019).Integrated climatology and trends in the subtropical Hadley cell, sunshine duration and cloud cover over South Africa.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(4),1805-1821. |
MLA | Mahlobo, D. D.,et al."Integrated climatology and trends in the subtropical Hadley cell, sunshine duration and cloud cover over South Africa".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.4(2019):1805-1821. |
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