{"id":"1b1c6b7d-d83f-49eb-a0a8-57e1b5a2c097","title":"青藏高原冰川高度变化数据 V1.0 (1970-2012)","title_en":"Glacier height change data of QTP V1.0 (1970-2012)","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":"按照产品时间范围命名","description":"本产品基于多源遥感DEM数据生成，步骤如下：以Landsat ETM+、SRTM 和ICESat遥感数据为参考在相对稳定和平坦的地形区域内选控制点。控制点水平坐标是以Landsat ETM+ L1T全色影像作为水平参考进行获取。控制点的高度坐标则主要通过ICESat GLA14高程数据进行获取，在无ICEsat分布的区域内以SRTM高程数据补充。利用选取的控制点和自动生成的连接点，通过Brown’s物理模型对透镜畸变和残余形变进行补偿，使得所有立体像对的空中三角测量结果中影像总RMSE<1个像素。为了对提取的DEM数据进行编辑以消除明显的高程异常值，采用了DEM内插、DEM滤波和DEM平滑等方法对冰川上的DEM进行了编辑，并对西昆仑-西和西昆仑-东区域的KH-9 DEM数据进行了拼接，从而形成产品。","doi":"10.11888/Glacio.tpdc.270986","projection":"","language":"zh","share_type":"online","east":73.33,"west":104.7,"south":26.0,"north":39.7,"scale":null,"crs":null,"filesize":30.0,"share_policy":"a","ts_created":"2019-10-31T14:58:23.962030+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T13:54:38.508341+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11,12],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe"],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":21056,"last_login":"2022-02-09T12:02:24.544987+08:00","username":"huxiaoli","email":"huxiaoli@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"胡晓利"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"1b1c6b7d-d83f-49eb-a0a8-57e1b5a2c097","three_pole":"XDA19070202","third_pole":null},"username":"","review_time":"2019-11-02T14:34:49.869266+08:00","protected_duration":null,"protected_describe":"","is_important":false,"hit_count":3969}