Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5971 |
Evaluation of CORDEX rainfall in northwest Ethiopia: Sensitivity to the model representation of the orography | |
Van Vooren, Sander1; Van Schaeybroeck, Bert2; Nyssen, Jan1; Van Ginderachter, Michiel3; Termonia, Piet2,3 | |
2019-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:5页码:2569-2586 |
文章类型 | Article |
语种 | 英语 |
国家 | Belgium |
英文摘要 | Precipitation amounts of 11 models of the Coordinated Regional climate Downscaling Experiment (CORDEX) are evaluated for northwest Ethiopia against eight sets of gridded observational data sets. The model runs are forced with ERA-Interim reanalysis and have a resolution of 0.44 degrees while the resolution of the observational data sets varies between 0.0375 and 0.75 degrees. Although the CORDEX ensemble mean overestimates the monthly precipitation compared to observational data sets, observations generally lie within the range of the model ensemble. Models generally overestimate the elevational sensitivity, that is, the simulated rainfall is too large for high elevations and too small for low elevations. The models that use the most smoothened representation of the orography perform the best. A group of six models, responsible for the largest biases, also include poor model orography. Given their strong elevation-precipitation correlation of about 60% even larger biases could be expected in case these models incorporate a correct orography. Also, the sensitivity to the choice of the model domain is investigated. While the eight CORDEX members on the African domain overestimate rainfall, the two members on the South Asia domain underestimate summer precipitation. |
英文关键词 | Africa climate CORDEX downscaling elevation gridded observational data sets orography |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467048900005 |
WOS关键词 | REGIONAL CLIMATE MODEL ; SCALE ATMOSPHERIC CIRCULATION ; PRECIPITATION PRODUCTS ; AFRICA RAINFALL ; EAST-AFRICAN ; VARIABILITY ; VALIDATION ; HORN ; PERFORMANCE ; ASSOCIATIONS |
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/182113 |
专题 | 气候变化 |
作者单位 | 1.Univ Ghent, Dept Geog, Ghent, Belgium; 2.Royal Meteorol Inst Belgium, Dept Meteorol Res & Dev, Uccle, Belgium; 3.Univ Ghent, Dept Phys & Astron, Ghent, Belgium |
推荐引用方式 GB/T 7714 | Van Vooren, Sander,Van Schaeybroeck, Bert,Nyssen, Jan,et al. Evaluation of CORDEX rainfall in northwest Ethiopia: Sensitivity to the model representation of the orography[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(5):2569-2586. |
APA | Van Vooren, Sander,Van Schaeybroeck, Bert,Nyssen, Jan,Van Ginderachter, Michiel,&Termonia, Piet.(2019).Evaluation of CORDEX rainfall in northwest Ethiopia: Sensitivity to the model representation of the orography.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(5),2569-2586. |
MLA | Van Vooren, Sander,et al."Evaluation of CORDEX rainfall in northwest Ethiopia: Sensitivity to the model representation of the orography".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.5(2019):2569-2586. |
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