{"id":"ae1ce001-f34d-4d02-977f-1ce80ce0e3c2","title":"“一带一路”关键节点区域30m级建成区分布数据（2000，2014）","title_en":"30-meter distribution dataset of built-up area  (2000 and 2014) for the key nodes in the Belt and Road","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":".tif，可以采用ARCGIS、ENVI打开查看","description":"建成区（Built-up Area）可以反映一定时间阶段城市建设用地规模、形态和实际使用情况，为分析研究用地现状，合理利用建成区的土地和规划城市建设发展用地提供基础。基于1999~2003年和2013~2014年覆盖34个关键节点的卫星影像，采用有监督和无监督的数据分类过程，将数据驱动和知识驱动合理地结合起来生产得到2000年和2014年的关键节点区域建成区分布数据。初步试验证实，该建成区信息质量优于其他通过对地观测数据自动处理提取的全球信息数据。数据的Balanced Accuracy 为0.83，遗漏误差为0.22。数据为TIFF格式的栅格数据，包含0,1,2,3,4五个唯一值，其中0表示nodata，1表示水面，2表示没有建成区的土地，3表示2014年的建成区，4表示2000年的建成区。","doi":"","projection":"","language":"zh","share_type":"online","east":180.0,"west":-180.0,"south":-90.0,"north":90.0,"scale":null,"crs":null,"filesize":21452.8,"share_policy":"a","ts_created":"2020-12-18T05:12:07.081466+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T01:02:54.922647+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"吴锋","username":"simlab3825","email":"wufeng@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"ae1ce001-f34d-4d02-977f-1ce80ce0e3c2","three_pole":null,"third_pole":"XDA20030302"},"username":"XDA20030302","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":838}