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DOI | 10.1002/joc.4752 |
Rainfall variability over Zimbabwe and its relation to large-scale atmosphere-ocean processes | |
Mamombe, Vimbai1,2; Kim, WonMoo3; Choi, Yong-Sang1 | |
2017-02-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; Zimbabwe |
英文摘要 | The relationship between interannual variability of Zimbabwe rainfall and atmosphere-ocean interaction processes is established using high-resolution rainfall station datasets. Empirical orthogonal function (EOF) analysis is used to extract the spatiotemporal modes that explain most of the variations in the rainfall pattern. Results suggest strong homogeneity in the rainfall pattern that is dominantly described by EOF mode 1. The correlation analysis of mode 1 with sea surface temperatures (SSTs) supports the assumption that El Nino Southern Oscillation (ENSO) has a significant influence on Zimbabwe summer rainfall. Significant correlations exist between rainfall and SSTs over large regions of the tropical Indian and Pacific Oceans. The seasonal response of rainfall to the southern annular mode is reflected in both modes 1 and 2. Mode 1 suggests homogeneity in rainfall variations within the country and mode 2 describes the north-south rainfall fluctuations in the country. Although the magnitudes of their loadings are small, modes 3 and 4 extracted distinct rainfall regions within the country. This could be attributed to the use of more reliable, higher resolution rainfall data. These findings will assist to bring profound improvements to seasonal rainfall forecasting techniques around the country. |
英文关键词 | Zimbabwe rainfall variability correlation atmospheric circulation empirical orthogonal function sea surface temperature ENSO |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393415100030 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; SOUTHERN ANNULAR MODE ; INDIAN-OCEAN ; SUMMER RAINFALL ; CLIMATE-CHANGE ; INTERANNUAL VARIABILITY ; AFRICA ; ENSO ; PREDICTABILITY ; CATCHMENT |
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/36655 |
专题 | 气候变化 |
作者单位 | 1.Ewha Womans Univ, Dept Atmospher Sci & Engn, 52 Ewhayeodae Gil, Seoul 120750, South Korea; 2.Meteorol Serv Dept Zimbabwe, Harare, Zimbabwe; 3.Ewha Womans Univ, Ctr Climate Environm Change Predict Res, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Mamombe, Vimbai,Kim, WonMoo,Choi, Yong-Sang. Rainfall variability over Zimbabwe and its relation to large-scale atmosphere-ocean processes[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(2). |
APA | Mamombe, Vimbai,Kim, WonMoo,&Choi, Yong-Sang.(2017).Rainfall variability over Zimbabwe and its relation to large-scale atmosphere-ocean processes.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(2). |
MLA | Mamombe, Vimbai,et al."Rainfall variability over Zimbabwe and its relation to large-scale atmosphere-ocean processes".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.2(2017). |
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