globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00382-017-4066-2
Scopus记录号: 2-s2.0-85042915343
论文题名:
Impact of atmospheric model resolution on simulation of ENSO feedback processes: a coupled model study
作者: Hua L.; Chen L.; Rong X.; Su J.; Wang L.; Li T.; Yu Y.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期:2018-07-08
起始页码: 3077
结束页码: 3092
语种: 英语
英文关键词: Air-sea feedback ; BJ index ; CGCM ; ENSO ; Model resolution
Scopus关键词: air-sea interaction ; atmospheric general circulation model ; atmospheric modeling ; climate feedback ; El Nino-Southern Oscillation ; thermocline ; thermodynamics ; wind stress ; zonal wind
英文摘要: This study examines El Niño-Southern Oscillation (ENSO)-related air-sea feedback processes in a coupled general circulation model (CGCM) to gauge model errors and pin down their sources in ENSO simulation. Three horizontal resolutions of the atmospheric component (T42, T63 and T106) of the CGCM are used to investigate how the simulated ENSO behaviors are affected by the resolution. We find that air-sea feedback processes in the three experiments mainly differ in terms of both thermodynamic and dynamic feedbacks. We also find that these processes are simulated more reasonably in the highest resolution version than in the other two lower resolution versions. The difference in the thermodynamic feedback arises from the difference in the shortwave-radiation (SW) feedback. Due to the severely (mildly) excessive cold tongue in the lower (higher) resolution version, the SW feedback is severely (mildly) underestimated. The main difference in the dynamic feedback processes lies in the thermocline feedback and the zonal-advection feedback, both of which are caused by the difference in the anomalous thermocline response to anomalous zonal wind stress. The difference in representing the anomalous thermocline response is attributed to the difference in meridional structure of zonal wind stress anomaly in the three simulations, which is linked to meridional resolution. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109103
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: State Key Laboratory of Severe Weather (LASW), Chinese Academy of Meteorological Sciences, Beijing, 100081, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environmental Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China; International Pacific Research Center (IPRC) and Department of Atmospheric Sciences, SOEST, University of Hawaii, Honolulu, HI 96822, United States

Recommended Citation:
Hua L.,Chen L.,Rong X.,et al. Impact of atmospheric model resolution on simulation of ENSO feedback processes: a coupled model study[J]. Climate Dynamics,2018-01-01,51(2018-07-08)
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