中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
A comparison of three multi-site statistical downscaling models for daily rainfall in the North China Plain

文献类型:SCI/SSCI论文

作者Liu W. B. ; Fu G. B. ; Liu C. M. ; Charles S. P.
发表日期2013
关键词generalized linear-models hidden markov model climate-change precipitation occurrence variability circulation projections scenarios simulation catchment
英文摘要Three statistical downscaling methods (conditional resampling statistical downscaling model: CR-SDSM, the generalised linear model for daily climate time series: GLIMCLIM, and the non-homogeneous hidden Markov model: NHMM) for multi-site daily rainfall were evaluated and compared in the North China Plain (NCP). The comparison focused on a range of statistics important for hydrological studies including rainfall amount, extreme rainfall, intra-annual variability, and spatial coherency. The results showed that no single model performed well over all statistics/timescales, suggesting that the user should chose appropriate methods after assessing their advantages and limitations when applying downscaling methods for particular purposes. Specifically, the CR-SDSM provided relatively robust results for annual/monthly statistics and extreme characteristics, but exhibited weakness for some daily statistics, such as daily rainfall amount, dry-spell length, and annual wet/dry days. GLIMCLIM performed well for annual dry/wet days, dry/wet spell length, and spatial coherency, but slightly overestimated the daily rainfall. Additionally, NHMM performed better for daily rainfall and annual wet/dry days, but slightly underestimated dry/wet spell length and overestimated the daily extremes. The results of this study could be applied when investigating climate change impact on hydrology and water availability for the NCP, which suffers from intense water shortages due to climate change and human activities in recent years.
出处Theoretical and Applied Climatology
111
3-4
585-600
收录类别SCI
语种英语
ISSN号0177-798X
源URL[http://ir.igsnrr.ac.cn/handle/311030/30394]  
专题地理科学与资源研究所_历年回溯文献
推荐引用方式
GB/T 7714
Liu W. B.,Fu G. B.,Liu C. M.,et al. A comparison of three multi-site statistical downscaling models for daily rainfall in the North China Plain. 2013.

入库方式: OAI收割

来源:地理科学与资源研究所

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