{"id":"b92f30a0-0864-448d-bcc9-d9d7857440ef","title":"祁连山重点区域DEM数据集 (2018)","title_en":"The DEM dataset in key areas of Qilian mountain (2018)","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":"文件命名约定：区域名称+空间分辨率+数据名称.tif\n投影：+proj=longlat +datum=WGS84 +no_defs\n数据格式：GeoTIFF， 32372行×11990列\nDEM单位：meters\nDEM有效值范围：1658~5665\n填充值：NoData","description":"本数据集为祁连山重点区域2018年数字高程模型（DEM）数据集，空间分辨率5m。本数据集基于高分辨率立体测绘卫星资源三号数据，通过空间分辨率为2.1m（正视）和3.5m（后视）的三线阵立体CCD测绘数据，并结合高精度地形图等基础资料，利用前后视立体相对及平差模型提取祁连山重点区域DEM数据，最后通过GIS软件的Mosaic工具拼接成的5m×5m的祁连山重点区域DEM数据集。该数据能够应用于祁连山重点区域开展三维空间数据处理、水文分析、地形分析、灾害监测、人类活动监测等。","doi":"10.11888/Geogra.tpdc.270144","projection":"WGS84","language":"zh","share_type":"offline","east":103.76,"west":94.76,"south":36.49,"north":39.83,"scale":null,"crs":null,"filesize":25088.0,"share_policy":"b","ts_created":"2019-06-10T10:10:33.327481+08:00","doi_type":null,"ts_updated":"2021-04-24T11:32:40.924826+08:00","time_description":"2018","datas_group":0,"time_description_en":null,"data_format":null,"project":[11],"specials":["4e7b97a6-ee1f-4b51-83e5-04a100993973","836a1603-47d0-494e-88c1-96723fd8e0bc","f2a78cde-1c98-4241-94dc-7532eba32b80","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"王卷乐","username":"王卷乐","email":"wangjl@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":{"id":21054,"last_login":"2022-04-10T10:49:12.540341+08:00","username":"tingting","email":"panxd@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"潘小多"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"b92f30a0-0864-448d-bcc9-d9d7857440ef","three_pole":null,"third_pole":"XDA20100101"},"username":"XDA20100101","review_time":"2019-06-15T10:54:21.526274+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":3074}