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DOI | 10.1007/s00382-016-3109-4 |
Convectively coupled Kelvin waves in CMIP5 coupled climate models | |
Wang, Lu1,2,3; Li, Tim1,2,3 | |
2017-02-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | This study provided a quantitative evaluation of convectively coupled Kelvin waves (CCKWs) over the Indian Ocean and the Pacific Ocean simulated by 20 coupled climate models that participated in Coupled Model Intercomparison Project phase 5. The two leading empirical orthogonal function (EOF) modes of filtered daily precipitation anomalies are used to represent the eastward propagating CCKWs in both observations and simulations. The eigenvectors and eigenvalues of the EOF modes represent the spatial patterns and intensity of CCKWs respectively, and the lead-lag relationship between the two EOF principle components describe the phase propagation of CCKWs. A non-dimensional metric was designed in consideration of all the three factors (i.e., pattern, amplitude and phase propagation) for evaluation. The relative rankings of the models based on the skill scores calculated by the metric are conducted for the Indian Ocean and the Pacific Ocean, respectively. Two models (NorESM1-M and MPI-ESM-LR) are ranked among the best 20 % for both the regions. Three models (inmcm4, MRI-CGCM3 and HadGEM2-ES) are ranked among the worst 20 % for both the regions. While the observed CCKW amplitude is greater north of the equator in the Pacific, some models overestimate the CCKW ampliutde in the Southern Hemisphere. This bias is related to the mean state precipitation bias along the south Pacific convergence zone. |
英文关键词 | Kelvin wave Precipitation Climate model CMIP5 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394150500004 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; CLOUD-RESOLVING MODEL ; EQUATORIAL WAVES ; PART I ; INTRASEASONAL OSCILLATIONS ; MJO ; PACIFIC ; ITCZ ; VARIABILITY ; MONSOON |
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/36560 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change ILCEC, Key Lab Meteorol Disaster,Minist Educ KLME, Nanjing, Jiangsu, Peoples R China; 2.Univ Hawaii, Int Pacific Res Ctr, 2525 Correa Rd, Honolulu, HI 96822 USA; 3.Univ Hawaii, Sch Ocean & Earth Sci & Technol, 2525 Correa Rd, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Wang, Lu,Li, Tim. Convectively coupled Kelvin waves in CMIP5 coupled climate models[J]. CLIMATE DYNAMICS,2017,48. |
APA | Wang, Lu,&Li, Tim.(2017).Convectively coupled Kelvin waves in CMIP5 coupled climate models.CLIMATE DYNAMICS,48. |
MLA | Wang, Lu,et al."Convectively coupled Kelvin waves in CMIP5 coupled climate models".CLIMATE DYNAMICS 48(2017). |
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