globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-015-2937-y
Scopus记录号: 2-s2.0-84951757122
论文题名:
A quantitative assessment of precipitation associated with the ITCZ in the CMIP5 GCM simulations
作者: Stanfield R.E.; Jiang J.H.; Dong X.; Xi B.; Su H.; Donner L.; Rotstayn L.; Wu T.; Cole J.; Shindo E.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期:2017-05-06
起始页码: 1863
结束页码: 1880
语种: 英语
英文关键词: AMIP ; Climate change ; CMIP ; CMIP5 ; GCM ; GCM bias ; GCM precipitation ; Global climate models ; ITCZ ; Model precipitation
英文摘要: According to the Intergovernmental Panel on Climate Change 5th Assessment Report, the broad-scale features of precipitation as simulated by Phase 5 of the Coupled Model Intercomparison Project (CMIP5) are in modest agreement with observations, however, large systematic errors are found in the Tropics. In this study, a new algorithm has been developed to define the North Pacific Intertropical Convergence Zone (ITCZ) through several metrics, including: the centerline position of the ITCZ, the width of the ITCZ, and the magnitude of precipitation along the defined ITCZ. These metrics provide a quantitative analysis of precipitation associated with the ITCZ over the equatorial northern Pacific. Results from 29 CMIP5 Atmospheric Model Intercomparison Project (AMIP) Global Circulation Model (GCM) runs are compared with Global Precipitation Climatology Project (GPCP) and Tropical Rainfall Measuring Mission (TRMM) observations. Similarities and differences between the GCM simulations and observations are analyzed with the intent of quantifying magnitude-, location-, and width-based biases within the GCMs. Comparisons show that most of the GCMs tend to simulate a stronger, wider ITCZ shifted slightly northward compared to the ITCZ in GPCP and TRMM observations. Comparisons of CMIP and AMIP simulated precipitation using like-models were found to be nearly equally distributed, with roughly half of GCMs showing an increase (decrease) in precipitation when coupled (decoupled) from their respective ocean model. Further study is warranted to understand these differences. © 2015, Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53567
Appears in Collections:过去全球变化的重建

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作者单位: Department of Atmospheric Sciences, University of North Dakota, 4149 University Ave. Stop 9006, Grand Forks, ND, United States; Jet Propulsion Laboratory, Pasadena, CA, United States; Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Commonwealth Scientific and Industrial Research Organization, Clayton South, VIC, Australia; Beijing Climate Center, China Meteorological Administration, Beijing, China; Canadian Centre for Climate Modeling and Analysis, Environment Canada, Toronto, ON, Canada; Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan

Recommended Citation:
Stanfield R.E.,Jiang J.H.,Dong X.,et al. A quantitative assessment of precipitation associated with the ITCZ in the CMIP5 GCM simulations[J]. Climate Dynamics,2016-01-01,47(2017-05-06)
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