One-kilometre monthly air temperature and precipitation product over the Mongolian Plateau for 1950-2020
文献类型：期刊论文
| 作者 | Xin, Ying3,4; Yang, Yaping1,3; Chen, Xiaona1; Yue, Xiafang1; Liu, Yangxiaoyue1; Yin, Cong4 |
| 刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
 |
| 出版日期 | 2023-04-01 |
| 关键词 | air temperature Delta downscaling ERA5-Land Mongolian Plateau precipitation |
| ISSN号 | 0899-8418 |
| DOI | 10.1002/joc.8063 |
| 文献子类 | Article; Early Access |
| 英文摘要 | The fragile ecological environment of the Mongolian Plateau (MP) is sensitive to climate change. It is necessary to fully understand the temperature and precipitation changes on the MP to ensure regional sustainable development. Most existing studies are conducted based on station observations which suffer from sparse distribution and limited spatial representativeness and cannot perfectly represent the climatic conditions of the whole region. By contrast, the long-term, spatially continuous reanalysis products offer new opportunities for MP climate change research. However, the coarse spatial resolution and large uncertainties of reanalysis data limit their applicability to provide reliable climate information at finer scales. Within the delta downscaling framework, we downscale and correct the state-of-the-art European Centre for Medium-range Weather Forecasts ReAnalysis 5 land portion (ERA5-Land) using a high-resolution WorldClim reference climatology and generate a long-term (1950-2020) 1-km monthly air temperature and precipitation downscaled dataset. During the downscaling process, the results obtained by nearest neighbour, bilinear and bicubic interpolation methods are evaluated and compared. Air temperature result of bilinear method and precipitation result of nearest neighbour method, which have the best accuracy, are taken as the final downscaled data. The evaluation shows that the downscaled data has acceptable accuracy (overall MBE = -0.41 degrees C, Corr = 0.997, RMSE = 1.51 degrees C for air temperature, and MBE = 1.58 mm.month(-1), Corr = 0.747, RMSE = 24.24 mm.month(-1) for precipitation), and outperforms the original ERA5-Land and widely used Climatic Research Unit (CRU) data. In addition, the downscaled data can also provide accurate and detailed temperature and precipitation change trends over the MP. With fine spatial resolution, long-time span and good spatial continuity, the downscaled air temperature and precipitation will be a useful data source to explore climate change over the MP. |
| WOS关键词 | LAND-SURFACE TEMPERATURE ; NET PRIMARY PRODUCTIVITY ; SUMMER PRECIPITATION ; CLIMATE SURFACES ; DROUGHT ; DATASET ; CHINA ; VEGETATION ; VARIABILITY ; REANALYSIS |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000959425500001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190465]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Chaoyang 100101, Beijing, Peoples R China 3.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xin, Ying,Yang, Yaping,Chen, Xiaona,et al. One-kilometre monthly air temperature and precipitation product over the Mongolian Plateau for 1950-2020[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2023. |
| APA | Xin, Ying,Yang, Yaping,Chen, Xiaona,Yue, Xiafang,Liu, Yangxiaoyue,&Yin, Cong.(2023).One-kilometre monthly air temperature and precipitation product over the Mongolian Plateau for 1950-2020.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
| MLA | Xin, Ying,et al."One-kilometre monthly air temperature and precipitation product over the Mongolian Plateau for 1950-2020".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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