Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04797-y |
Weakening of the Senegalo-Mauritanian upwelling system under climate change | |
Sylla, Adama1,2; Mignot, Juliette2; Capet, Xavier2; Gaye, Amadou Thierno1 | |
2019-10-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:4447-4473 |
文章类型 | Article |
语种 | 英语 |
国家 | Senegal; France |
英文摘要 | Upwelling processes bring nutrient-rich waters from the deep ocean to the surface. Areas of upwelling are often associated with high productivity, offering great economic value in terms of fisheries. The sensitivity of spring/summer-time coastal upwelling systems to climate change has recently received a lot of attention. Several studies have suggested that their intensity may increase in the future while other authors have shown decreasing intensity in their equatorward portions. Yet, recent observations do not show robust evidence of this intensification. The Senegalo-Mauritanian upwelling system (SMUS) located at the southern edge of the north Atlantic system (12 degrees N-20 degrees N) and most active in winter/spring has been largely excluded from these studies. Here, the seasonal cycle of the SMUS and its response to climate change is investigated in the database of the Coupled Models Inter comparison Project Phase 5 (CMIP5). Upwelling magnitude and surface signature are characterized by several sea surface temperature and wind stress indices. We highlight the ability of the climate models to reproduce the system, as well as their biases. The simulations suggest that the intensity of the SMUS winter/spring upwelling will moderately decrease in the future, primarily because of a reduction of the wind forcing linked to a northward shift of Azores anticyclone and a more regional modulation of the low pressures found over Northwest Africa. The implications of such an upwelling reduction on the ecosystems and local communities exploiting them remains very uncertain. |
英文关键词 | Upwelling Climate change Climate models Northeastern tropical Atlantic |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489753900039 |
WOS关键词 | SEA-SURFACE TEMPERATURE ; TROPICAL ATLANTIC SST ; 1997-1998 EL-NINO ; OCEAN CIRCULATION ; NORTHWEST AFRICA ; EKMAN TRANSPORT ; WIND-STRESS ; HEAT-FLUX ; MODEL ; VARIABILITY |
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/187228 |
专题 | 气候变化 |
作者单位 | 1.LPAO SF ESP UCAD, Lab Phys Atmosphere & Ocean Simeon Fongang, Dakar, Senegal; 2.Sorbonne Univ, CNRS IRD MNHN, LOCEAN Lab, Paris, France |
推荐引用方式 GB/T 7714 | Sylla, Adama,Mignot, Juliette,Capet, Xavier,et al. Weakening of the Senegalo-Mauritanian upwelling system under climate change[J]. CLIMATE DYNAMICS,2019,53:4447-4473. |
APA | Sylla, Adama,Mignot, Juliette,Capet, Xavier,&Gaye, Amadou Thierno.(2019).Weakening of the Senegalo-Mauritanian upwelling system under climate change.CLIMATE DYNAMICS,53,4447-4473. |
MLA | Sylla, Adama,et al."Weakening of the Senegalo-Mauritanian upwelling system under climate change".CLIMATE DYNAMICS 53(2019):4447-4473. |
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