气候变化领域集成服务门户(CCPortal): Correcting systematic biases across multiple atmospheric variables in the frequency domain

CCPortal

DOI	10.1007/s00382-018-4191-6
	Correcting systematic biases across multiple atmospheric variables in the frequency domain
	Nguyen H.; Mehrotra R.; Sharma A.
发表日期	2019
ISSN	0930-7575
起始页码	1283
结束页码	1298
卷号	52 期号:2020-01-02
英文摘要	A procedure for correcting systematic biases across multiple variables is presented. This procedure operates in the frequency domain, using the cross-spectrum across variables to correct bias across each frequency band. The proposed approach is termed multivariate frequency bias correction or MFBC. The approach is illustrated using global climate model (GCM) simulations of multiple atmospheric variables, with variables selected based on recommended usage in downscaling applications. Results indicate clear benefits of using MFBC in representing both intra- and inter-variable dependence in corrected simulations. This has important implications in applications which require multiple atmospheric variables, and a need to correctly simulate both inter- and intra-variable dependence attributes. MFBC offers a mean to correct raw GCM atmospheric variables prior to downscaling or correct dynamically or statistically downscaled simulations prior to derived simulations of other variables of interest. Use of MFBC can have significant implications on derived hydrologic simulations, such as in sizing of storage reservoirs, or devising water sharing plans for the future. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Bias correction; Downscaling; Frequency bias correction; Multivariate bias correction; Multivariate frequency bias correction
语种	英语
scopus关键词	atmospheric correction; climate modeling; downscaling; error correction; multivariate analysis; water management
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146601
作者单位	Water Research Centre, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Nguyen H.,Mehrotra R.,Sharma A.. Correcting systematic biases across multiple atmospheric variables in the frequency domain[J],2019,52(2020-01-02).
APA	Nguyen H.,Mehrotra R.,&Sharma A..(2019).Correcting systematic biases across multiple atmospheric variables in the frequency domain.Climate Dynamics,52(2020-01-02).
MLA	Nguyen H.,et al."Correcting systematic biases across multiple atmospheric variables in the frequency domain".Climate Dynamics 52.2020-01-02(2019).