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DOI | 10.1007/s00382-018-4378-x |
An examination of the Northern Hemisphere mid-latitude storm track interannual variability simulated by climate modelssensitivity to model resolution and coupling | |
Feng, Xuelei1,2; Huang, Bohua3,4; Tintera, George5; Chen, Baohua5 | |
2019-04-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:4247-4268 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; USA |
英文摘要 | The model fidelity in simulating the Northern Hemisphere storm track interannual variability and the connections of this variability to the low frequency atmospheric variations and oceanic variations are examined based on the atmospheric European Centre for Medium-Range Weather Forecasts (ECMWF) model and coupled NCAR Community Climate System Model (CCSM) systems at different horizontal resolutions. The atmospheric general circulation model (AGCM) runs are forced by observed sea surface temperatures (SST) with varying atmospheric resolutions, while the coupled general circulation model (CGCM) runs have a fixed atmospheric resolution but varying oceanic resolutions. The phases, between the North Pacific (NP) and North Atlantic (NA) sectors, of the simulated hemisphere-scale Empirical Orthogonal Function (EOF) modes of the storm track fluctuations change with the model resolution, suggesting the storm track variability in NP and NA basins are largely independent. The models can qualitatively reproduce the basin-scale EOFs of both NP and NA storm track variability. These EOFs are not sensitive to either atmospheric or oceanic model horizontal resolutions, but their magnitudes from the CGCM runs are substantially underestimated. The storm track variations over NP basin are hybrid of internal atmospheric variations and external forcing from the underlying conditions, but the fluctuations over the NA basin are merely atmospheric internal variability. The NP storm track variability from SST forcing accounts for 4.4% of the total variance in observations, while it only has less than 2% of the total in all AGCM simulations. The external forcing to the storm track variations is more realistically reproduced in the higher atmospheric resolution runs. The air-sea coupling makes the SST feedbacks to the atmospheric internal variability, absent in the atmospheric ECMWF model hindcasts, emerge in the coupled CCSM simulations. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467187600026 |
WOS关键词 | WINTER ; EUROPE ; FLOW ; NAO |
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/181896 |
专题 | 气候变化 |
作者单位 | 1.Inst Basic Sci, Ctr Climate Phys, Pusan 46241, South Korea; 2.Pusan Natl Univ, Pusan 46241, South Korea; 3.George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA; 4.George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA; 5.Texas A&M Univ Corpus Christi, Dept Math & Stat, Corpus Christi, TX 78412 USA |
推荐引用方式 GB/T 7714 | Feng, Xuelei,Huang, Bohua,Tintera, George,et al. An examination of the Northern Hemisphere mid-latitude storm track interannual variability simulated by climate modelssensitivity to model resolution and coupling[J]. CLIMATE DYNAMICS,2019,52:4247-4268. |
APA | Feng, Xuelei,Huang, Bohua,Tintera, George,&Chen, Baohua.(2019).An examination of the Northern Hemisphere mid-latitude storm track interannual variability simulated by climate modelssensitivity to model resolution and coupling.CLIMATE DYNAMICS,52,4247-4268. |
MLA | Feng, Xuelei,et al."An examination of the Northern Hemisphere mid-latitude storm track interannual variability simulated by climate modelssensitivity to model resolution and coupling".CLIMATE DYNAMICS 52(2019):4247-4268. |
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