Improvements in the CMIP5 simulations of ENSO-SSTA meridional width

被引:44
作者
Zhang, Wenjun [1 ,2 ]
Jin, Fei-Fei [2 ]
机构
[1] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China
[2] Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Meteorol, 2525 Correa Rd, Honolulu, HI 96822 USA
基金
美国国家科学基金会;
关键词
GENERAL-CIRCULATION MODELS; EL-NINO; COUPLED MODEL; INTERCOMPARISON PROJECT; VARIABILITY; PACIFIC;
D O I
10.1029/2012GL053588
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The recent study demonstrated the existence of a systematical narrow bias in the simulated El Nino-Southern Oscillation (ENSO) meridional width of surface temperature anomaly (SSTA) of ENSO by the models participating in Phase 3 of the Coupled Model Inter-comparison Project (CMIP3). The current models developed for Phase 5 of the CMIP (CMIP5) still have this narrow bias in ENSO width relative to the observation, but with a modest improvement over previous models. The improvement can partly be attributed to a better simulation in trade wind, and partly to a better simulation in ENSO period. It has also been demonstrated that the models with a better performance in ENSO width tend to simulate the precipitation response to ENSO over the off-equatorial eastern Pacific more realistically. Citation: Zhang, W., and F.-F. Jin (2012), Improvements in the CMIP5 simulations of ENSO-SSTA meridional width, Geophys. Res. Lett., 39, L23704, doi:10.1029/2012GL053588.
引用
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页数:5
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