Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3547-7 |
On the added value of the regional climate model REMO in the assessment of climate change signal over Central Africa | |
Fotso-Nguemo, Thierry C.1,2,5; Vondou, Derbetini A.1; Pokam, Wilfried M.1,3,4; Djomou, Zephirin Yepdo1,5; Diallo, Ismaila6; Haensler, Andreas7; Tchotchou, Lucie A. Djiotang1; Kamsu-Tamo, Pierre H.1,8; Gaye, Amadou T.9; Tchawoua, Clement10 | |
2017-12-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Cameroon; USA; Germany; Senegal |
英文摘要 | In this paper, the regional climate model REMO is used to investigate the added value of downscaling low resolutions global climate models (GCMs) and the climate change projections over Central Africa. REMO was forced by two GCMs (EC-Earth and MPI-ESM), for the period from 1950 to 2100 under the Representative Concentration Pathway 8.5 scenario. The performance of the REMO simulations for current climate is compared first with REMO simulation driven by ERA-Interim reanalysis, then by the corresponding GCMs in order to determine whether REMO outputs are able to effectively lead to added value at local scale. We found that REMO is generally able to better represent some aspects of the rainfall inter-annual variability, the daily rainfall intensity distribution as well as the intra-seasonal variability of the Central African monsoon, though few biases are still evident. It is also found that the boundary conditions strongly influences the spatial distribution of seasonal 2-m temperature and rainfall. From the analysis of the climate change signal from the present period 1976-2005 to the future 2066-2095, we found that all models project a warming at the end of the twenty-first century although the details of the climate change differ between REMO and the driving GCMs, specifically in REMO where we observe a general decrease in rainfall. This rainfall decrease is associated with delayed onset and anticipated recession of the Central African monsoon and a shortening of the rainy season. Small-scales variability of the climate change signal for 2-m temperature are usually smaller than that of the large-scales climate change part. For rainfall however, small-scales induce change of about 70% compared to the present climate statistics. |
英文关键词 | Central Africa Dynamical downscaling EC-Earth model MPI-ESM model REMO model Added value CORDEX-Africa |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415579000011 |
WOS关键词 | WESTERN EQUATORIAL AFRICA ; INTERANNUAL VARIABILITY ; RAINFALL VARIABILITY ; TROPICAL OCEANS ; SOUTHERN AFRICA ; PRECIPITATION ; SCALE ; TEMPERATURE ; SIMULATIONS ; REPRESENTATION |
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/36343 |
专题 | 气候变化 |
作者单位 | 1.Univ Yaounde I, LEMAP, Dept Phys, POB 812, Yaounde, Cameroon; 2.Natl Adv Sch Publ Works, Integrated Management Water Resources & Sanitat A, Dept Rural Engn, POB 510, Yaounde, Cameroon; 3.Univ Yaounde I, High Teacher Training Coll, Dept Phys, POB 47, Yaounde, Cameroon; 4.Cent Africa Reg Off, Ctr Int Forestry Res CIFOR, POB 2008, Yaounde, Cameroon; 5.Natl Inst Cartog, POB 157, Yaounde, Cameroon; 6.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA; 7.Helmholtz Zentrum Geesthacht, Climate Serv Ctr Germany GERICS, Fischertwiete 1, Hamburg, Germany; 8.Univ Douala, Dept Phys, POB 24157, Douala, Cameroon; 9.Univ Cheikh Anta Diop, LPAO SF, Ecole Super Polytech, POB 5085, Dakar, Senegal; 10.Univ Yaounde I, Lab Mech, Dept Phys, POB 812, Yaounde, Cameroon |
推荐引用方式 GB/T 7714 | Fotso-Nguemo, Thierry C.,Vondou, Derbetini A.,Pokam, Wilfried M.,et al. On the added value of the regional climate model REMO in the assessment of climate change signal over Central Africa[J]. CLIMATE DYNAMICS,2017,49. |
APA | Fotso-Nguemo, Thierry C..,Vondou, Derbetini A..,Pokam, Wilfried M..,Djomou, Zephirin Yepdo.,Diallo, Ismaila.,...&Tchawoua, Clement.(2017).On the added value of the regional climate model REMO in the assessment of climate change signal over Central Africa.CLIMATE DYNAMICS,49. |
MLA | Fotso-Nguemo, Thierry C.,et al."On the added value of the regional climate model REMO in the assessment of climate change signal over Central Africa".CLIMATE DYNAMICS 49(2017). |
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