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DOI | 10.1038/s41598-019-44614-4 |
Observations and Projections of Heat Waves in South America | |
Feron, S.1,2; Cordero, R. R.1; Damiani, A.1,3; Llanillo, P. J.1; Jorquera, J.1; Sepulveda, E.1; Asencio, V.1; Laroze, D.4; Labbe, F.5; Carrasco, J.6; Torres, G.7 | |
发表日期 | 2019 |
ISSN | 2045-2322 |
卷号 | 9 |
英文摘要 | Although Heat Waves (HWs) are expected to increase due to global warming, they are a regional phenomenon that demands for local analyses. In this paper, we assess four HW metrics (HW duration, HW frequency, HW amplitude, and number of HWs per season) as well as the share of extremely warm days (TX95, according to the 95th percentile) in South America (SA). Our analysis included observations as well as simulations from global and regional models. In particular, Regional Climate Models (RCMs) from the Coordinated Regional Climate Downscaling Experiment (CORDEX), and Global Climate Models (GCMs) from the Coupled Model Intercomparison Project Phase 5 (CMIP5) were used to project both TX95 estimates and HW metrics according to two representative concentration pathways (RCP4.5 and RCP8.5). We found that in recent decades the share of extremely warm days has at least doubled over the period December-January-February (DJF) in northern SA; less significant increases have been observed in southern SA. We also found that by midcentury, under the RCP4.5 scenario, extremely warm DJF days (as well as the number of HWs per season) are expected to increase by 5-10 times at locations close to the Equator and in the Atacama Desert. Increases are expected to be less pronounced in southern SA. Projections under the RCP8.5 scenario are more striking, particularly in tropical areas where half or more of the days could be extremely warm by midcentury. |
WOS研究方向 | Science & Technology - Other Topics |
来源期刊 | SCIENTIFIC REPORTS
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/98980 |
作者单位 | 1.Univ Santiago Chile, Ave Bernardo OHiggins 3363, Santiago, Chile; 2.Stanford Univ, Dept Earth Syst Sci, Stanford, CA 94305 USA; 3.Chiba Univ, Ctr Environm Remote Sensing, Chiba, Japan; 4.Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica, Chile; 5.Univ Tecn Federico Santa Maria, Ave Espana 1680, Valparaiso, Chile; 6.Univ Magallanes, Ave Bulnes 01855, Punta Arenas, Chile; 7.Direcc Meteorol Chile, Ave Portales 3450, Santiago, Chile |
推荐引用方式 GB/T 7714 | Feron, S.,Cordero, R. R.,Damiani, A.,et al. Observations and Projections of Heat Waves in South America[J],2019,9. |
APA | Feron, S..,Cordero, R. R..,Damiani, A..,Llanillo, P. J..,Jorquera, J..,...&Torres, G..(2019).Observations and Projections of Heat Waves in South America.SCIENTIFIC REPORTS,9. |
MLA | Feron, S.,et al."Observations and Projections of Heat Waves in South America".SCIENTIFIC REPORTS 9(2019). |
条目包含的文件 | 条目无相关文件。 |
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