Multimodel ensemble forecasts for precipitations in china in 1998
文献类型：期刊论文
| 作者 | Ke Zongjian1,3; Dong Wenjie2; Mang Peiqun2 |
| 刊名 | Advances in atmospheric sciences
 |
| 出版日期 | 2008 |
| 卷号 | 25期号:1页码:72-82 |
| 关键词 | Precipitation Multimodel ensemble China |
| ISSN号 | 0256-1530 |
| DOI | 10.1007/s00376-008-0072-y |
| 通讯作者 | Ke zongjian(zongjke@mail.iap.ac.cn) |
| 英文摘要 | Different multimodel ensemble methods are used to forecast precipitations in china, 1998, and their forecast skills are compared with those of individual models. datasets were obtained from monthly simulations of eight models during the period of january 1979 to december 1998 from the "climate of the 20th century experiment" (20c3m) for the fourth ipcc assessment report. climate research unit (cru) data were chosen for the observation analysis field. root mean square (rms) error and correlation coefficients (r) are used to measure the forecast skills. in addition, superensemble forecasts based on different input data and weights are analyzed. results show that for original data, superensemble forecasting based on multiple linear regression (mlr) performs best. however, for bias-corrected data, the superensemble based on singular value decomposition (svd) produces a lower rms error and a higher r than in the mlr superensemble. it is an interesting result that the svd superensemble based on bias-corrected data performs better than the mlr superensemble, but that the svd superensemble based on original data is inferior to the corresponding mlr superensemble. in addition, weights calculated by different data formats are shown to affect the forecast skills of the superensembles. in comparison with the mlr superensemble, a slightly significant effect is present in the svd superensemble. however, both the svd and mlr superensembles based on different weight formats outperform the ensemble mean of bias-corrected data. |
| WOS关键词 | SEASONAL CLIMATE ; SUPERENSEMBLE ; PREDICTION ; WEATHER ; SKILL |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000252345700007 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2389752 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ke Zongjian |
| 作者单位 | 1.Chinese Acad Sci, Inst Atom Phys, Key Lab Ref Climate Environm Temperate E Asia, Beijing 100029, Peoples R China 2.China Meteorol Adm, Natl Climate Ctr, Lab Climate Studies, Beijing 100081, Peoples R China 3.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ke Zongjian,Dong Wenjie,Mang Peiqun. Multimodel ensemble forecasts for precipitations in china in 1998[J]. Advances in atmospheric sciences,2008,25(1):72-82. |
| APA | Ke Zongjian,Dong Wenjie,&Mang Peiqun.(2008).Multimodel ensemble forecasts for precipitations in china in 1998.Advances in atmospheric sciences,25(1),72-82. |
| MLA | Ke Zongjian,et al."Multimodel ensemble forecasts for precipitations in china in 1998".Advances in atmospheric sciences 25.1(2008):72-82. |
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来源：中国科学院大学
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