{"id":"aa4e22f6-bbc5-4eff-9803-8ec77ed603ad","title":"成都市主要城区土地利用图（2020）","title_en":"Land Use Map of Chengdu Main City in 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":"成都市+2020","description":"本数据集主要基于中高分辨率（30m）的Landsat8遥感数据集，选择成都市七环内地区为研究区域，采用随机森林的分类方法，解译提取了该区域2020年的水田、旱地、草地、林地、建设用地、水域及水利设施用地及其他用地共7种土地利用类型，并计算了混淆矩阵、总体精度与Kappa系数以验证精确性，其数据精度与同类型和同级别的产品精度相近。该数据可以用于成都市土地资源和现状调查具有重要支撑作用，对于了解成都市土地利用格局研究也具有重要意义。","doi":"","projection":"","language":"zh","share_type":"offline","east":104.45864,"west":103.69509,"south":30.92926,"north":30.94958,"scale":null,"crs":null,"filesize":512.0,"share_policy":"c","ts_created":"2022-10-12T09:03:07.933482+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-10-12T16:00:16.503921+08:00","time_description":"2020","datas_group":0,"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":"aa4e22f6-bbc5-4eff-9803-8ec77ed603ad","three_pole":null,"third_pole":null},"username":"丁智","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":396}