{"id":"398e7346-5506-441b-878d-e1b684a56b1f","title":"中国长江上游 30m ASTER GDEM V3 高程数据","title_en":"30m ASTER GDEM V3 elevation data in the upper Yangtze River, China","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：ASTER GDEM V3 30m_Yangzte.tif。\n该数据可用arcgis等gis软件直接读取，也可用matlab，python等编程语言直接读取。","description":"ASTER GDEM数据由日本METI和美国NASA联合研制并免费面向公众分发。ASTER GDEM数据产品基于“先进星载热发射和反辐射计(ASTER)”数据计算生成，是目前唯一覆盖全球陆地表面的高分辨率高程影像数据。该产品空间分辨率为30m，目前有ASTER GDEM V1, ASTER GDEM V2, ASTER GDEM V3三个版本。2019年8月5日，NASA和METI共同发布了ASTER GDEM V3版本，在V2的基础之上，新增了36万光学立体像对数据，主要用于减少高程值空白区域、水域数值异常。","doi":"https://doi.org/10.5067/ASTER/ASTGTM.003","projection":"WGS84","language":"zh","share_type":"online","east":112.0,"west":90.0,"south":24.0,"north":36.0,"scale":null,"crs":null,"filesize":5365.76,"share_policy":"a","ts_created":"2022-10-04T10:38:54.801759+08:00","doi_type":"国际公开共享数据","ts_updated":"2022-10-11T11:23:23.403530+08:00","time_description":"2019","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":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"398e7346-5506-441b-878d-e1b684a56b1f","three_pole":null,"third_pole":null},"username":"余玲","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":268}