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DOI | 10.1002/joc.4890 |
Multisite bias correction of precipitation data from regional climate models | |
Hnilica, Jan1,2; Hanel, Martin1; Pus, Vladimir1 | |
2017-05-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Czech Republic |
英文摘要 | The characteristics of precipitation in regional climate model simulations deviate considerably from those of the observed data; therefore, bias correction is a standard part of most climate change impact assessment studies. The standard approach is that the corrections are calibrated and applied separately for individual spatial points and meteorological variables. For this reason, the correlation and covariance structures of the observed and corrected data differ, although the individual observed and corrected data sets correspond well in their statistical indicators. This inconsistency may affect impact studies using corrected simulations. This study presents a new approach to the bias correction utilizing principal components in combination with quantile mapping, which allows for the correction of multivariate data sets. The proposed procedure significantly reduces the bias in covariance and correlation structures, as well as that in the distribution of individual variables. This is in contrast to standard quantile mapping, which only corrects the individual distributions, and leaves the dependence structure biased. |
英文关键词 | bias correction regional climate model correlation covariance multivariate data multisite correction principal components precipitation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404849200011 |
WOS关键词 | CHANGE IMPACT ; TIME-SERIES ; SIMULATIONS ; OUTPUTS ; RUNOFF |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36898 |
专题 | 气候变化 |
作者单位 | 1.Czech Univ Life Sci Prague, Fac Environm Sci, Prague, Czech Republic; 2.Acad Sci Czech Republ, Inst Hydrodynam, Patankou 5, Prague 16612 6, Czech Republic |
推荐引用方式 GB/T 7714 | Hnilica, Jan,Hanel, Martin,Pus, Vladimir. Multisite bias correction of precipitation data from regional climate models[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(6). |
APA | Hnilica, Jan,Hanel, Martin,&Pus, Vladimir.(2017).Multisite bias correction of precipitation data from regional climate models.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(6). |
MLA | Hnilica, Jan,et al."Multisite bias correction of precipitation data from regional climate models".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.6(2017). |
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