Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.4000/physio-geo.10966 |
| Rain resumption and floods multiplication in western Sahelian Africa | |
| Nouaceur, Zeineddine | |
| 通讯作者 | Nouaceur, Z (corresponding author), Univ Rouen, CNRS 6226, UMR IDEES, 1 Rue Thomas Becket, F-76821 Mont St Aignan, France. |
| 来源期刊 | PHYSIO-GEO
 |
| ISSN | 1958-573X |
| 出版年 | 2020 |
| 卷号 | 15页码:89-109 |
| 英文摘要 | This study focuses on the West African Sahel, which makes the transition between a fairly watered Sahelo-Sudanian zone and the Saharan desert. This territory covers 12 countries forming a longitudinal band between 12 and 20 degrees North latitude. In West Africa, six countries (Senegal, Mauritania, Mali, Niger, Burkina Faso and Chad) belong to this region. In order to determine the rainfall trend in three countries of this wide territorial strip (Mauritania, Senegal, Burkina Faso), we use the graphical chronological method of information processing (MGCTI) of the Matrix BERTIN type. Analysis of precipitation data shows a resumption of precipitation since the late 1980s or 1990s. It follows the long Sahelian drought that began in 1970. Analysis of extreme precipitation in the study area also shows a close relationship with the surface temperature of the North Atlantic Ocean (TNA) and a strong link with the cumulative energy of tropical cyclones (ACE). This resumption of the rains, which is somewhat reminiscent of the years of fat cows (1950-1960 wet cycle) is however marked by an unprecedented resurgence of urban floods. These events are due, on the one hand, to the intensification of rainfall and, in the other hand, to poorly controlled urban development. |
| 英文关键词 | climate change rain resumption floods Sahel West Africa |
| 类型 | Article |
| 语种 | 法语 |
| 开放获取类型 | DOAJ Gold |
| 收录类别 | ESCI |
| WOS记录号 | WOS:000611188900007 |
| WOS关键词 | EXTREME PRECIPITATION ; CLIMATE-CHANGE ; TRENDS ; FREQUENCY ; EVOLUTION ; IMPACT |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS研究方向 | Geology |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/352662 |
| 作者单位 | [Nouaceur, Zeineddine] Univ Rouen, CNRS 6226, UMR IDEES, 1 Rue Thomas Becket, F-76821 Mont St Aignan, France |
| 推荐引用方式 GB/T 7714 | Nouaceur, Zeineddine. Rain resumption and floods multiplication in western Sahelian Africa[J],2020,15:89-109. |
| APA | Nouaceur, Zeineddine.(2020).Rain resumption and floods multiplication in western Sahelian Africa.PHYSIO-GEO,15,89-109. |
| MLA | Nouaceur, Zeineddine."Rain resumption and floods multiplication in western Sahelian Africa".PHYSIO-GEO 15(2020):89-109. |
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