{"id":"e0bf122a-3ffa-401e-95db-1ce778d99e21","title":"中国成渝地区30m GlobeLand30土地覆盖数据集（2000，2010，2020）","title_en":"30m GlobeLand30 Land Cover Data Set in the Chengdu-Chongqing economic circle, China (2000, 2010, 2020)","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":"文件命名：数据集以GeoTiff格式存储，文件的名称为“Globeland30_yyyy.tif”，其中yyyy代表年。\n数据读取方式：ArcGIS、ENVI等可以读取。","description":"GlobeLand30数据研制所使用的分类影像主要是30米多光谱影像，包括美国陆地资源卫星(Landsat)的TM5、ETM+、OLI多光谱影像和中国环境减灾卫星(HJ-1)多光谱影像，2020版数据还使用了16米分辨率高分一号(GF-1)多光谱影像。它采用WGS-84坐标系，共包括10个一级类型，分别是耕地、林地、草地、灌木地、湿地、水体、苔原、人造地表、裸地、冰川和永久积雪。GlobeLand30 V2010数据的总体精度为83.50%，Kappa系数0.78；V2020数据的总体精度为85.72%，Kappa系数0.82。","doi":"10.1038/514434c","projection":"","language":"zh","share_type":"online","east":109.0,"west":101.0,"south":27.0,"north":33.0,"scale":null,"crs":null,"filesize":60.0,"share_policy":"a","ts_created":"2022-10-04T20:35:09.065848+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2022-10-05T14:48:13.139933+08:00","time_description":"2000, 2010, 2020","datas_group":3,"time_description_en":"","data_format":null,"project":[10],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"e0bf122a-3ffa-401e-95db-1ce778d99e21","three_pole":null,"third_pole":null},"username":"卢伟","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":284}