Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3917-1 |
Analysis of the variability of the North Atlantic eddy-driven jet stream in CMIP5 | |
Iqbal, Waheed1; Leung, Wai-Nang2; Hannachi, Abdel1 | |
2018-07-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:235-247 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden; Peoples R China |
英文摘要 | The North Atlantic eddy-driven jet is a dominant feature of extratropical climate and its variability is associated with the large-scale changes in the surface climate of midlatitudes. Variability of this jet is analysed in a set of General Circulation Models (GCMs) from the Coupled Model Inter-comparison Project phase-5 (CMIP5) over the North Atlantic region. The CMIP5 simulations for the 20th century climate (Historical) are compared with the ERA40 reanalysis data. The jet latitude index, wind speed and jet persistence are analysed in order to evaluate 11 CMIP5 GCMs and to compare them with those from CMIP3 integrations. The phase of mean seasonal cycle of jet latitude and wind speed from historical runs of CMIP5 GCMs are comparable to ERA40. The wind speed mean seasonal cycle by CMIP5 GCMs is overestimated in winter months. A positive (negative) jet latitude anomaly in historical simulations relative to ERA40 is observed in summer (winter). The ensemble mean of jet latitude biases in historical simulations of CMIP3 and CMIP5 with respect to ERA40 are and respectively. Thus indicating improvements in CMIP5 in comparison to the CMIP3 GCMs. The comparison of historical and future simulations of CMIP5 under RCP4.5 and RCP8.5 for the period 2076-2099, shows positive anomalies in the jet latitude implying a poleward shifted jet. The results from the analysed models offer no specific improvements in simulating the trimodality of the eddy-driven jet. |
英文关键词 | North Atlantic jet CMIP5 evaluation Jet variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435522000014 |
WOS关键词 | CLIMATE MODELS ; WINTER ; HEMISPHERE ; ATMOSPHERE ; BLOCKING ; BEHAVIOR |
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/35477 |
专题 | 气候变化 |
作者单位 | 1.Stockholm Univ, Dept Meteorol, S-10691 Stockholm, Sweden; 2.ClusterTech Ltd, Hong Kong, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Iqbal, Waheed,Leung, Wai-Nang,Hannachi, Abdel. Analysis of the variability of the North Atlantic eddy-driven jet stream in CMIP5[J]. CLIMATE DYNAMICS,2018,51:235-247. |
APA | Iqbal, Waheed,Leung, Wai-Nang,&Hannachi, Abdel.(2018).Analysis of the variability of the North Atlantic eddy-driven jet stream in CMIP5.CLIMATE DYNAMICS,51,235-247. |
MLA | Iqbal, Waheed,et al."Analysis of the variability of the North Atlantic eddy-driven jet stream in CMIP5".CLIMATE DYNAMICS 51(2018):235-247. |
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