该数据集为中国大陆高分辨率地表晴空紫外线辐射数据集，覆盖43年（1981–2023）观测期，时间分辨率为1小时，空间分辨率为10公里。数据以W/m²为单位表示，广泛适用于太阳能开发、生态研究及公共卫生影响评估等领域。该数据集基于SMARTS模型生成，采用ERA5和MERRA-2再分析数据作为输入。地面观测验证显示其具有高精度：相关系数(R)达0.919，均方根误差(RMSE)为5.073 W/m²，均值偏差误差(MBE)为0.072 W/m²。相较于CERES紫外辐射产品，本数据集展现出更高的精度。此外，通过运用SMARTS模型的光谱计算能力，数据集实现了进一步精细化处理，提供0.5纳米间隔的紫外辐射数据。此项增强使特定波长的分析更为详尽，为定向研究提供更高分辨率。该数据集将成为晴空紫外辐射相关研究与应用的可靠资源。", "ds_source": "
数据来源于：https://doi.org/10.6084/m9.figshare.28234298 。", "ds_process_way": "
本数据集基于ERA5和MERRA-2再分析数据，采用SMARTS光谱辐射传输模型进行生成，并通过地面观测验证确保了其高精度。加工过程中，还特别利用了模型的光谱计算能力，生成了0.5纳米间隔的高分辨率光谱数据，从而实现了对紫外辐射的精细化表征。", "ds_quality": "
本数据集经过37个地面站点实测数据验证，与实测值的相关系数高达0.919，均方根误差和均值偏差误差分别低至5.073 W/m²和0.072 W/m²，精度优于CERES同类产品；同时，通过提供0.5纳米间隔的光谱数据，在特定波长分析方面具备了更精细的解析能力。", "ds_acq_start_time": "1981-01-01 00:00:00", "ds_acq_end_time": "2023-12-31 00:00:00", "ds_acq_place": "中国", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 464925920, "ds_files_count": 3, "ds_format": "*.nc", "ds_space_res": "10km", "ds_time_res": "时", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "17502f6d-4905-470a-b5bd-de4ee490e32f.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a4dd5849-78f2-44c5-b0f1-3450e952b2a2", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2025-11-27 15:50:49", "last_updated": "2026-01-12 11:39:35", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.FIGSHARE.DB7023.2025", "i18n": { "en": { "title": "A 0.5nm high-resolution (1h, 10km) surface solar clear-sky ultraviolet radiation dataset for China (1981-2023)", "ds_format": "", "ds_source": "
Data source: https://doi.org/10.6084/m9.figshare.28234298 .", "ds_quality": "
This dataset has been validated with measured data from 37 ground stations, and the correlation coefficient with the measured values is as high as 0.919. The root mean square error and mean deviation error are as low as 5.073 W/m ² and 0.072 W/m ², respectively, with higher accuracy than similar products from CERES; At the same time, by providing spectral data at intervals of 0.5 nanometers, it has gained more refined analytical capabilities in specific wavelength analysis.", "ds_ref_way": "", "ds_abstract": "
The dataset is a high-resolution surface clear-sky ultraviolet (UV) radiation dataset for mainland China, covering 43 years (1981–2023) with a temporal resolution of 1 hour and a spatial resolution of 10 km. The data is expressed in units of W/m² and is widely applicable to fields such as solar energy development, ecological research, and public health impact assessments. The dataset was generated based on the SMARTS model, using ERA5 and MERRA-2 reanalysis data as inputs. Validation against ground-based observations demonstrates its high accuracy, with a correlation coefficient (R) of 0.919, a root mean square error (RMSE) of 5.073 W/m², and a mean bias error (MBE) of 0.072 W/m². Compared to the CERES UV radiation product, this dataset demonstrates higher accuracy. Additionally, leveraging the spectral computation capabilities of the SMARTS model, the dataset provides further refinement, offering UV radiation data at 0.5 nm intervals. This enhancement enables more detailed analyses at specific wavelengths, offering higher resolution for targeted research. The dataset serves as a reliable resource for studies and applications related to clear-sky UV radiation.
", "ds_time_res": "时", "ds_acq_place": "China", "ds_space_res": "10km", "ds_projection": "", "ds_process_way": "This dataset is based on ERA5 and MERRA-2 reanalysis data, generated using the SMARTS spectral radiative transfer model, and validated through ground observations to ensure its high accuracy. During the processing, the spectral calculation capability of the model was specifically utilized to generate high-resolution spectral data with intervals of 0.5 nanometers, thereby achieving precise characterization of ultraviolet radiation.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "地表", "晴空", "紫外线" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国" ], "ds_time_tags": [ 1981, 2023 ], "ds_contributors": [ { "true_name": "覃文敏", "email": "qinwenmin@cug.edu.cn", "work_for": "中国地质大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "覃文敏", "email": "qinwenmin@cug.edu.cn", "work_for": "中国地质大学", "country": "中国" } ], "ds_managers": [ { "true_name": "覃文敏", "email": "qinwenmin@cug.edu.cn", "work_for": "中国地质大学", "country": "中国" } ], "category": "气象" }