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DOI | 10.1088/1748-9326/12/1/014001 |
Biases of the wintertime Arctic Oscillation in CMIP5 models | |
Gong, Hainan1; Wang, Lin1,2; Chen, Wen1,2; Chen, Xiaolong2; Nath, Debashis1 | |
2017 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Distinct biases are found in the pattern and teleconnections of the Arctic Oscillation (AO) in 32 climate models that participate the Coupled Model Intercomparison Project Phase 5 (CMIP5). Compared with observations, the Pacific (Atlantic) center of AO is excessively strong (weak) in most of the 32 CMIP5 models, and the AO-related surface air temperature anomalies are generally weak over the Eurasian continent and North America. These biases are closely tied to the excessively strong linkage, which is marginal in observations, between AO and the North Pacific mode (NPM)-the leading variability of the North Pacific sea level pressure. It implies that the AO in CMIP5 models may be compounded with some regional mode over the North Pacific. Accordingly, a bias-correction method was proposed via correcting the AO index (AOI) to improve the diagnostic estimates of the AO teleconnections. The results suggest that the biases in the pattern and teleconnections of AO can be significantly reduced when the NPM variability is linearly removed from the AOI. |
英文关键词 | Arctic Oscillation (AO) CMIP5 North Pacific Pacific-North America (PNA) empirical orthogonal function (EOF) |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000391975600001 |
WOS关键词 | NORTH-ATLANTIC OSCILLATION ; ANNULAR MODE ; GEOPOTENTIAL HEIGHT ; PART I ; CIRCULATION ; VARIABILITY ; MONSOON ; LINK ; SEA |
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/31021 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Gong, Hainan,Wang, Lin,Chen, Wen,et al. Biases of the wintertime Arctic Oscillation in CMIP5 models[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(1). |
APA | Gong, Hainan,Wang, Lin,Chen, Wen,Chen, Xiaolong,&Nath, Debashis.(2017).Biases of the wintertime Arctic Oscillation in CMIP5 models.ENVIRONMENTAL RESEARCH LETTERS,12(1). |
MLA | Gong, Hainan,et al."Biases of the wintertime Arctic Oscillation in CMIP5 models".ENVIRONMENTAL RESEARCH LETTERS 12.1(2017). |
条目包含的文件 | 条目无相关文件。 |
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