DOI: 10.1175/JCLI-D-14-00655.1
Scopus记录号: 2-s2.0-84942854183
论文题名: Parametric sensitivity analysis for the Asian summer monsoon precipitation simulation in the Beijing Climate Center AGCM, version 2.1
作者: Yang B. ; Zhang Y. ; Qian Y. ; Wu T. ; Huang A. ; Fang Y.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 14 起始页码: 5622
结束页码: 5644
语种: 英语
Scopus关键词: Atmospheric thermodynamics
; Climatology
; Oceanography
; Precipitation (chemical)
; Sensitivity analysis
; Convective parameterization
; Evaporation coefficients
; General circulation model
; Interannual variability
; Monsoons
; Parametric sensitivity analysis
; Precipitation climatology
; Precipitation efficiency
; Precipitation (meteorology)
; annual variation
; climate modeling
; cloud
; general circulation model
; monsoon
; parameterization
; precipitation (climatology)
; sensitivity analysis
; China
; Indian Ocean
; Indian Ocean (Equatorial)
; Pacific Ocean
; Philippine Sea
; Citrus maxima
英文摘要: In this study, the authors apply an efficient sampling approach and conduct a large number of simulations to explore the sensitivity of the simulated Asian summer monsoon (ASM) precipitation, including the climatological state and interannual variability, to eight parameters related to the cloud and precipitation processes in the Beijing Climate Center AGCM, version 2.1 (BCC_AGCM2.1). The results herein show that BCC_AGCM2.1 has large biases in simulating theASMprecipitation. The precipitation efficiency and evaporation coefficient for deep convection are the most sensitive parameters in simulating the ASM precipitation. With optimal parameter values, the simulated precipitation climatology could be remarkably improved, including increased precipitation over the equatorial Indian Ocean, suppressed precipitation over the Philippine Sea, and more realistic mei-yu distribution over eastern China. The ASM precipitation interannual variability is further analyzed, with a focus on the ENSO impacts. It is shown that simulations with betterASM precipitation climatology can also producemore realistic precipitation anomalies during El Niño-decaying summer. In the low-skill experiments for precipitation climatology, the ENSO-induced precipitation anomalies are most significant over continents (vs over ocean in observations) in the South Asian monsoon region. More realistic results are derived from the higher-skill experiments with stronger anomalies over the Indian Ocean and weaker anomalies over India and the western Pacific Ocean, favoring more evident easterly anomalies forced by the tropical Indian Ocean warming and stronger Indian Ocean-western Pacific teleconnection as observed. Themodel results reveal a strong connection between the simulatedASMprecipitation climatological state and interannual variability in BCC_AGCM2.1 when key parameters are perturbed. © 2015 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50829
Appears in Collections: 气候变化事实与影响
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作者单位: School of Atmospheric Sciences, Nanjing University, and Jiangsu Collaborative Innovation Center for Climate Change, Nanjing, China; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Beijing Climate Center, National Climate Center, China Meteorological Administration, Beijing, China
Recommended Citation:
Yang B.,Zhang Y.,Qian Y.,et al. Parametric sensitivity analysis for the Asian summer monsoon precipitation simulation in the Beijing Climate Center AGCM, version 2.1[J]. Journal of Climate,2015-01-01,28(14)