{"id":"68036436-0adc-4753-8921-7f575ae99039","title":"长江和色林错源区冰川表面高程时间序列（1976-2017）","title_en":"Time series DEM of glacier surface in the source area of the Yangtze River and Selin Co region (1976-2017)","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":"数据文件按照传感器加日期信息命名。其中，tdx为TanDEM-X COSSC数据, kh9表示Hexagon KH-9，ETM表示Landsat ETM，日期为YYYYMMDD格式。 数据为geotiff和shapefile格式，可在ArcGIS或QGIS等软件打开。DEM投影方式为WGS_1984_UTM_Zone_46N，冰川轮廓投影为Albers Conical Equal Area","description":"格拉丹东地区是青藏高原重要的、典型的大江大湖源区。本数据集提供了不同时间尺度，不同分辨率的，覆盖长江和色林错源区冰川的DEM，用以计算源区冰川表面高程的季节变化和年代际变化。数据集包括了2016-2017年7景不同月份5米分辨率的TanDEM-X数据，可用以冰川表面高程的季节性变化计算；包括了1景1976年30米分辨率的KH-9 DEM，5景2011年30米分辨率的TanDEM-X，1景2014年和3景2017年30米分辨率的TanDEM-X，可用以计算1976-2000，2000-2011，2011-2017年期间冰川表面高程变化。同时采用Landsat ETM数据勾画，并按照RGI6.0分割了1976年的冰川轮廓数据；右图显示了该数据集的空间和时间覆盖信息，底图为正射校正后KH-9影像。","doi":"10.11888/Glacio.tpdc.271666","projection":"UTM","language":"zh","share_type":"online","east":92.0,"west":90.5,"south":33.0,"north":34.0,"scale":null,"crs":null,"filesize":1279.0,"share_policy":"a","ts_created":"2021-08-27T12:13:37.190423+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-09-22T09:48:44.670672+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11,12],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"梁丽乔","username":"丽乔","email":"liangliqiao@itpcas.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":"Monthly","spatial_resolution":"1m - 10m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21,227,574],"subtopics":{"metadata":"68036436-0adc-4753-8921-7f575ae99039","three_pole":null,"third_pole":null},"username":"陈文锋","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1202}