DOI: 10.1007/s00382-014-2413-0
Scopus记录号: 2-s2.0-84941424357
论文题名: The roles of bias-correction and resolution in regional climate simulations of summer extremes
作者: PaiMazumder D. ; Done J.M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-05-06 起始页码: 1565
结束页码: 1581
语种: 英语
英文关键词: Bias correction
; Dynamical downscaling
; Regional climate models
; Summer extremes
英文摘要: The suitability of dynamical downscaling in producing high-resolution climate scenarios for impact assessments is limited by the quality of the driving data and regional climate model (RCM) error. Multiple RCMs driven by a single global climate model simulation of current climate show a reduction in bias compared to the driving data, and the remaining bias motivates exploration of bias correction and higher RCM resolution. The merits of bias correcting the mean climate of the driving data (boundary bias correction) versus bias correcting the mean of the RCM output data are explored and compared to model resolution sensitivity. This analysis focuses on the simulation of summer temperature and precipitation extremes using a single RCM, the Nested Regional Climate Model (NRCM). The NRCM has a general cool bias for hot and cold extremes, a wet bias for wet extremes and a dry bias for dry extremes. Both bias corrections generally reduced the bias and overall error with some indication that boundary bias correction provided greater benefits than bias correcting the mean of the RCM output data, particularly for precipitation. High resolution tended not to lead to further improvements, though further work is needed using multiple resolution evaluation datasets and convection permitting resolution simulations to comprehensively assess the value of high resolution. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: NSF, National Science Foundation
; 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/54018
Appears in Collections: 过去全球变化的重建
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作者单位: National Center for Atmospheric Research Earth System Laboratory, 3090 Centre Green Drive, Boulder, CO, United States
Recommended Citation:
PaiMazumder D.,Done J.M.. The roles of bias-correction and resolution in regional climate simulations of summer extremes[J]. Climate Dynamics,2015-01-01,45(2017-05-06)