A Comprehensive Long-Term (1981-2020) Radiation Dataset for China: Ensuring Consistency, Comparability, and Incorporating Uncertainty
文献类型：期刊论文
| 作者 | Liu, Chang2,3; Ren, Xiaoli2,3; He, Honglin4; Zhang, Li4; Gao, Chao5; Qian, Zheng2,3,5; Wang, Xueting1,2,3; Li, Chenxi2,3,5; Dong, Shiyu2,3,5; Lin, Zining2,3,5 |
| 刊名 | JOURNAL OF CLIMATE
 |
| 出版日期 | 2026 |
| 卷号 | 39期号:1页码:403-421 |
| 关键词 | Radiation Uncertainty Ecological models Atmosphere Ecology Asia |
| ISSN号 | 0894-8755 |
| DOI | 10.1175/JCLI-D-25-0158.1 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Comprehensive, reliable, and long-term radiation data are imperative for ecological model development and improvement. However, the existing radiation datasets either lack comprehensiveness or have relatively short temporal coverage, and few provide information regarding their uncertainties. In the present study, we generated a comprehensive radiation dataset for China from 1981 to 2020 by combining in situ observations from the China Meteorological Administration (CMA) and the Chinese Ecosystem Research Network (CERN) with an advanced Gaussian process regression (GPR) approach, covering global radiation, diffuse radiation, photosynthetically active radiation (PAR), and diffuse PAR, along with corresponding uncertainty estimates, and independently validated the robustness of the dataset. The results indicated that the generated radiation dataset effectively captured the interannual and seasonal dynamics of the observations, with R2 values of 0.69 and 0.89, respectively, and the spatial uncertainties of the dataset were relatively low, around 1%. The dataset exhibited evident spatial heterogeneity, higher in the southwest and lower in the northeast, and the annual mean values of global radiation, diffuse radiation, PAR, and diffuse PAR were 5355.63, 2411.11, 2075.78, and 1018.99 MJ m-2 yr, respectively. From 1981 to 2020, global radiation and PAR exhibited decreasing trends primarily driven by water vapor, with decline rates of-3.62 and-1.37 MJ m-2 yr, respectively, whereas changes in their diffuse components were modest, at-0.39 and-0.21 MJ m-2 yr, mainly attributable to the combined influence of aerosol optical depth (AOD) and cloud cover. Our study provides a comprehensive and consistent spatiotemporal dataset, which is of great value for investigating the impact of radiation on terrestrial ecosystems and for conducting ecosystem modeling and uncertainty analyses. |
| URL标识 | 查看原文 |
| WOS关键词 | PHOTOSYNTHETICALLY ACTIVE RADIATION ; SURFACE SOLAR-RADIATION ; DIFFUSE-RADIATION ; GLOBAL RADIATION ; SATELLITE RETRIEVALS ; SHORTWAVE RADIATION ; DOWNWARD SHORTWAVE ; EASTERN CHINA ; CLIMATE ; VARIABILITY |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001648537900001 |
| 出版者 | AMER METEOROLOGICAL SOC |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219735]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Ren, Xiaoli |
| 作者单位 | 1.Lanzhou Univ, Coll Ecol, Lanzhou, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Natl Ecosyst Sci Data Ctr, Beijing, Peoples R China; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; 5.Univ Chinese Acad Sci, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu, Chang,Ren, Xiaoli,He, Honglin,et al. A Comprehensive Long-Term (1981-2020) Radiation Dataset for China: Ensuring Consistency, Comparability, and Incorporating Uncertainty[J]. JOURNAL OF CLIMATE,2026,39(1):403-421. |
| APA | Liu, Chang.,Ren, Xiaoli.,He, Honglin.,Zhang, Li.,Gao, Chao.,...&Wu, Han.(2026).A Comprehensive Long-Term (1981-2020) Radiation Dataset for China: Ensuring Consistency, Comparability, and Incorporating Uncertainty.JOURNAL OF CLIMATE,39(1),403-421. |
| MLA | Liu, Chang,et al."A Comprehensive Long-Term (1981-2020) Radiation Dataset for China: Ensuring Consistency, Comparability, and Incorporating Uncertainty".JOURNAL OF CLIMATE 39.1(2026):403-421. |
入库方式： OAI收割
来源：地理科学与资源研究所
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