{"id":"845bd238-d500-4531-8a1d-a8823c10c339","title":"中国长江上游1kmPM2.5数据集(2000-2021)","title_en":"Data set of 1km PM2.5 in the upper reaches of Yangtze River in China (2000-2021)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"CHAP_PM2.5_D1K_YYYYMMDD_V4.tif","description":"中国长江上游1kmPM2.5数据集(2000-2021)是中国(中国大气污染物监测中心( CHAP ))系列长期、全覆盖、高分辨率、高质量的地面空气污染物数据集之一。它是利用人工智能的大数据(例如,地基测量、卫星遥感产品、大气再分析和模式模拟等)，通过考虑空气污染的时空异质性而产生的。该数据为2000年至2021年中国长江流域每天1公里(即D1K)的地面PM2.5数据集。该数据集每天的交叉验证决定系数( CV-R2 )为0.92，均方根误差( RMSE )为10.76 µ g m - 3","doi":"https://doi.org/10.5281/zenodo.3753614","projection":"","language":"zh","share_type":"online","east":112.0,"west":89.0,"south":24.0,"north":36.5,"scale":null,"crs":null,"filesize":29184.0,"share_policy":"a","ts_created":"2022-10-02T22:19:57.313525+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2022-10-11T11:23:23.368910+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10],"specials":["b4b306da-eab1-47ef-ae5d-be2556298efd"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Daily","spatial_resolution":"1m - 10m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"845bd238-d500-4531-8a1d-a8823c10c339","three_pole":null,"third_pole":null},"username":"韩笑","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":309}