Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04950-7 |
Variations in ozone and greenhouse gases as drivers of Southern Hemisphere climate in a medium-complexity global climate model | |
Saurral, Ramiro I.1,2,3; Kucharski, Fred4,5; Raggio, Gabriela A.1,3 | |
2019-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53期号:11页码:6645-6663 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina; Italy; Saudi Arabia |
英文摘要 | The climate of the Southern Hemisphere (SH) is being affected not only by the global increase in the concentration of greenhouse gases (GHG) but also by the ongoing recovery of stratospheric ozone. The competing roles of both are usually studied by means of state-of-the-art global climate models (GCM) due to the complexity in the atmospheric processes and interactions involved. The main objective of this paper is to determine whether quantitatively similar results can be achieved using a simpler, medium-complexity GCM. This includes addressing the sensitivity of the medium-complexity model to changes in GHG and ozone concentrations as well as looking into the plausible mechanisms driving such patterns of variations in atmospheric circulation, precipitation and temperature extremes. Two sets of simulations are performed: one with fixed sea surface temperatures (SST) and another one making use of a mixed-layer ocean model coupled to the GCM. Results show that the GCM is highly sensitive to changes in the atmospheric composition, and that the largest differences are found when SST are allowed to vary accordingly, particularly in the case of temperature extremes. Specific analyses are also performed on changes in subtropical precipitation over the continental regions of the SH, with moisture budget decomposition being applied in order to provide explanations for the rainfall changes described in the manuscript. |
英文关键词 | Ozone and greenhouse gases Southern Hemisphere Moisture budget SPEEDY Global climate models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494681900009 |
WOS关键词 | ATMOSPHERIC CIRCULATION RESPONSE ; OBSERVATIONAL EVIDENCE ; HADLEY-CELL ; TRENDS ; VARIABILITY ; MECHANISMS ; DEPLETION ; WIDTH ; ZONE |
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/224256 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Buenos Aires, CONICET, CIMA, Int Guiraldes 2160,Ciudad Univ,Pab 2,C1428EGA, Buenos Aires, DF, Argentina; 2.Univ Buenos Aires, Fac Ciencias Exactas & Nat, DCAO, Buenos Aires, DF, Argentina; 3.UBA, CONICET, CNRS, UMI,IFAECI, Buenos Aires, DF, Argentina; 4.Abdus Salaam Int Ctr Theoret Phys, Earth Syst Phys Sect, Trieste, Italy; 5.King Abdulaziz Univ, Dept Meteorol, Ctr Excellence Climate Change Res, Jeddah, Saudi Arabia |
推荐引用方式 GB/T 7714 | Saurral, Ramiro I.,Kucharski, Fred,Raggio, Gabriela A.. Variations in ozone and greenhouse gases as drivers of Southern Hemisphere climate in a medium-complexity global climate model[J]. CLIMATE DYNAMICS,2019,53(11):6645-6663. |
APA | Saurral, Ramiro I.,Kucharski, Fred,&Raggio, Gabriela A..(2019).Variations in ozone and greenhouse gases as drivers of Southern Hemisphere climate in a medium-complexity global climate model.CLIMATE DYNAMICS,53(11),6645-6663. |
MLA | Saurral, Ramiro I.,et al."Variations in ozone and greenhouse gases as drivers of Southern Hemisphere climate in a medium-complexity global climate model".CLIMATE DYNAMICS 53.11(2019):6645-6663. |
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