Evaluation of ERA-Interim Monthly Temperature Data over the Tibetan Plateau
文献类型：期刊论文
| 作者 | GAO Lu ; HAO Lu ; CHEN Xing-wei |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-09 |
| 卷号 | 11期号:5页码:1154-1168 |
| 关键词 | Reanalysis Air temperature Warming trend Tibetan Plateau |
| 通讯作者 | GAO Lu |
| 英文摘要 | In this study, surface air temperature from 75 meteorological stations above 3000 m on the Tibetan Plateau are applied for evaluation of the European Centre for Medium-Range Weather Forecasts (ECMWF) third-generation reanalysis product ERA-Interim in the period of 1979-2010. High correlations ranging from 0.973 to 0.999 indicate that ERA-Interim could capture the annual cycle very well. However, an average root-mean-square error (rmse) of 3.7°C for all stations reveals that ERA-Interim could not be applied directly for the individual sites. The biases can be mainly attributed to the altitude differences between ERA-Interim grid points and stations. An elevation correction method based on monthly lapse rates is limited to reduce the bias for all stations. Generally, ERA-Interim captured the Plateau-Wide annual and seasonal climatologies very well. The spatial variance is highly related to the topographic features of the TP. The temperature increases significantly (10°C - 15°C) from the western to the eastern Tibetan Plateau for all seasons, in particular during winter and summer. A significant warming trend (0.49°C/decade) is found over the entire Tibetan Plateau using station time series from 1979-2010. ERA-Interim captures the annual warming trend with an increase rate of 0.33°C /decade very well. The observation data and ERA-Interim data both showed the largest warming trends in winter with values of 0.67°C/decade and 0.41°C/decade, respectively. We conclude that in general ERA-Interim captures the temperature trends very well and ERA-Interim is reliable for climate change investigation over the Tibetan Plateau under the premise of cautious interpretation. |
| 收录类别 | SCI |
| 公开日期 | 2014-09-17 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7245]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.5 |
| 推荐引用方式 GB/T 7714 | GAO Lu,HAO Lu,CHEN Xing-wei. Evaluation of ERA-Interim Monthly Temperature Data over the Tibetan Plateau[J]. Journal of Mountain Science,2014,11(5):1154-1168. |
| APA | GAO Lu,HAO Lu,&CHEN Xing-wei.(2014).Evaluation of ERA-Interim Monthly Temperature Data over the Tibetan Plateau.Journal of Mountain Science,11(5),1154-1168. |
| MLA | GAO Lu,et al."Evaluation of ERA-Interim Monthly Temperature Data over the Tibetan Plateau".Journal of Mountain Science 11.5(2014):1154-1168. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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