Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab8331 |
Role of the mean state for the Southern Hemispheric jet stream response to CO(2)forcing in CMIP6 models | |
Curtis, Paul Edwin1; Ceppi, Paulo2; Zappa, Giuseppe3 | |
2020-06-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2020 |
卷号 | 15期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Italy |
英文摘要 | Global climate models indicate that the Southern Hemispheric (SH) jet stream shifts poleward in response to CO(2)forcing, but the magnitude of this shift remains highly uncertain. Here we analyse the SH jet stream response to 4xCO(2)forcing in Coupled Model Intercomparison Project phase 6 (CMIP6) simulations, and find a substantially muted jet shift during winter compared with CMIP5. We suggest this muted response results from a more poleward mean jet position, consistent with a strongly reduced bias in jet position relative to the reanalysis during 1980-2004. The improved mean jet position cannot be explained by changes in the simulated sea surface temperatures. Instead, we find indications that increased horizontal grid resolution in CMIP6 relative to CMIP5 has contributed to the higher mean jet latitude, and thus to the reduced jet shift under CO(2)forcing. These results imply that CMIP6 models can provide more realistic projections of SH climate change. |
英文关键词 | climate change atmospheric circulation jet streams climate models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000541102100001 |
WOS关键词 | CIRCULATION RESPONSE ; EMERGENT CONSTRAINTS ; AGULHAS LEAKAGE ; SCALES ; OCEAN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/289348 |
专题 | 气候变化 |
作者单位 | 1.Imperial Coll London, Dept Phys, London, England; 2.Imperial Coll London, Grantham Inst Climate Change & Environm, London, England; 3.Consiglio Nazl Ric CNR, Ist Sci Atmosfera & Clima ISAC, Bologna, Italy |
推荐引用方式 GB/T 7714 | Curtis, Paul Edwin,Ceppi, Paulo,Zappa, Giuseppe. Role of the mean state for the Southern Hemispheric jet stream response to CO(2)forcing in CMIP6 models[J]. ENVIRONMENTAL RESEARCH LETTERS,2020,15(6). |
APA | Curtis, Paul Edwin,Ceppi, Paulo,&Zappa, Giuseppe.(2020).Role of the mean state for the Southern Hemispheric jet stream response to CO(2)forcing in CMIP6 models.ENVIRONMENTAL RESEARCH LETTERS,15(6). |
MLA | Curtis, Paul Edwin,et al."Role of the mean state for the Southern Hemispheric jet stream response to CO(2)forcing in CMIP6 models".ENVIRONMENTAL RESEARCH LETTERS 15.6(2020). |
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