globalchange  > 全球变化的国际研究计划
DOI: 10.1016/j.gloplacha.2015.12.009
论文题名:
The intensification of thermal extremes in west Africa
作者: Ringard J.; Dieppois B.; Rome S.; Diedhiou A.; Pellarin T.; Konaré A.; Diawara A.; Konaté D.; Dje B.K.; Katiellou G.L.; Seidou Sanda I.; Hassane B.; Vischel T.; Garuma G.F.; Mengistu G.; Camara M.; Diongue A.; Gaye A.T.; Descroix L.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2016
卷: 139
起始页码: 66
结束页码: 77
语种: 英语
英文关键词: CMIP5 ; Daily temperature anomalies ; Extreme temperature ; Heat waves ; Trend ; West Africa
Scopus关键词: Climate models ; CMIP5 ; Daily temperatures ; Extreme temperatures ; Heat waves ; Trend ; West Africa ; Climatology ; climate modeling ; coastal zone ; diurnal variation ; extreme event ; heat flux ; regional climate ; spatiotemporal analysis ; temperature anomaly ; trend analysis ; warming ; Atlantic Ocean ; Gulf of Guinea ; Sahel [Sub-Saharan Africa]
英文摘要: This study aims in filling the gap in understanding the relationship between trend and extreme in diurnal and nocturnal temperatures (Tx and Tn) over the Gulf of Guinea area and the Sahel. Time-evolution and trend of Tx and Tn anomalies, extreme temperatures and heat waves are examined using regional and station-based indices over the 1900-2012 and 1950-2012 periods respectively. In investigating extreme temperature anomalies and heat waves, a percentile method is used. At the regional and local scales, rising trends in Tx and Tn anomalies, which appear more pronounced over the past 60. years, are identified over the two regions. The trends are characterized by an intensification of: i) nocturnal/Tn warming over the second half of the 20th century; and ii) diurnal/Tx warming over the post-1980s. This is the same scheme with extreme warm days and warm nights. Finally annual number of diurnal and nocturnal heat waves has increase over the Gulf of Guinea coastal regions over the second half of the 20th century, and even more substantially over the post-1980s period. Although this trend in extreme warm days and nights is always overestimated in the simulations, from the Coupled Model Intercomparison Project Phase 5 (CMIP5), those models display rising trends whatever the scenario, which are likely to be more and more pronounced over the two regions in the next 50. years. © 2016 Elsevier B.V.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955259835&doi=10.1016%2fj.gloplacha.2015.12.009&partnerID=40&md5=b8acd648786dbb049852d1a14bde1155
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11686
Appears in Collections:全球变化的国际研究计划
气候变化与战略

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作者单位: Université de Guyane, IRD, UMR ESPACE-DEV, Cayenne, Guyana

Recommended Citation:
Ringard J.,Dieppois B.,Rome S.,et al. The intensification of thermal extremes in west Africa[J]. Global and Planetary Change,2016-01-01,139.
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