{"id":"5d5b6eb8-1d76-4189-a892-ef0d7626ae37","title":"黄河上游1:400万河流矢量图（2009）","title_en":"Vector map of 1:4 million rivers in the upper reaches of the Yellow River (2009)","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":"该图以矢量shp文件存储，可用Arcgis、Qgis等遥感软件打开读取","description":"一、概述\n黄河是我国第二长河，黄河泥沙问题引起全世界人民的关注。根据全国1:400万河流矢量图为底图，利用黄河上游流域边界裁剪而成。河流矢量图是利用地形图提取流域边界的一个关键要素，同时也是做洪水演进和泥沙演进的关键要素。\n二、数据处理说明\n以全国1:400万河流矢量图为数据源，利用黄河上游流域边界裁剪而成。\n三、数据内容说明\n该图以ArcGIS,.shp文件存储，包括自黄河源区到头道拐的干流和支流矢量图。\n四、数据使用说明\n河流矢量图是利用地形图提取流域边界的一个关键要素，同时也是做洪水演变和泥沙演进的关键要素。","doi":"","projection":null,"language":"zh","share_type":"offline","east":112.0,"west":95.0,"south":32.0,"north":42.0,"scale":null,"crs":null,"filesize":2.76,"share_policy":"c","ts_created":"2015-05-21T09:33:22+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T21:37:09.908110+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":"shp","project":[10,11],"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":[107],"subtopics":{"metadata":"5d5b6eb8-1d76-4189-a892-ef0d7626ae37","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":9335}