DOI: 10.1007/s00382-013-1670-7
Scopus记录号: 2-s2.0-84894919298
论文题名: A high-resolution ocean-atmosphere coupled downscaling of the present climate over California
作者: Li H. ; Kanamitsu M. ; Hong S.-Y. ; Yoshimura K. ; Cayan D.R. ; Misra V.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期: 2017-03-04 起始页码: 701
结束页码: 714
语种: 英语
英文关键词: CCSM3
; Coupled model
; Ocean-atmosphere interaction
; Regional climate
; ROMS
; RSM
英文摘要: A fully coupled regional ocean-atmosphere model system that consists of the regional spectral model and the regional ocean modeling system for atmosphere and ocean components, respectively, is applied to downscale the present climate (1985-1994) over California from a global simulation of the Community Climate System Model 3.0 (CCSM3). The horizontal resolution of the regional coupled modeling system is 10 km, while that of the CCSM3 is at a spectral truncation of T85 (approximately 1.4°). The effects of the coupling along the California coast in the boreal summer and winter are highlighted. Evaluation of the sea surface temperature (SST) and 2-m air temperature climatology shows that alleviation of the warm bias along the California coast in the global model output is clear in the regional coupled model run. The 10-m wind is also improved by reducing the northwesterly winds along the coast. The higher resolution coupling effect on the temperature and specific humidity is the largest near the surface, while the significant impact on the wind magnitude appears at a height of approximately 850-hPa heights. The frequency of the Catalina Eddy and its duration are increased by more than 60 % in the coupled downscaling, which is attributed to enhanced offshore sea-breeze. Our study indicates that coupling is vital to regional climate downscaling of mesoscale phenomena over coastal areas. © 2013 Springer-Verlag Berlin Heidelberg. 资助项目: NOAA, National Oceanic and Atmospheric Administration
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54296
Appears in Collections: 过去全球变化的重建
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作者单位: Scripps Institution of Oceanography, University of California, San Diego, CA, United States; Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States; Department of Atmospheric Sciences, College of Science, Yonsei University, Seoul, 120-749, South Korea; Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo, Japan
Recommended Citation:
Li H.,Kanamitsu M.,Hong S.-Y.,et al. A high-resolution ocean-atmosphere coupled downscaling of the present climate over California[J]. Climate Dynamics,2014-01-01,42(2017-03-04)