{"id":"b2abf8f7-b992-48be-9be8-abf808e782b9","title":"青藏高原典型冰川厚度变化数据集 V1.0（2000-2013）","title_en":"Ice elevation changes for typical glaciers on the QTP V1.0 (2000-2013)","serial":"地球大数据科学工程专项时空三极环境项目","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":"","description":"随着SAR干涉测量技术的不断进步，使得高精度获取冰川区的多时相DEM成为了可能。特别是，2000年美国国家航空航天局（NASA）主导的航天飞机雷达制图计划（SRTM）提供了覆盖全球56ºS - 60ºN范围的DEM资料；德国宇航局（DLR）的TanDEM-X双站SAR干涉测量系统能够提供全球范围高分辨率、高精度DEM。这些高质量、大覆盖范围的SAR干涉测量数据，以及发布的DEM数据产品，为利用多时相DEM探测冰川厚度变化提供了宝贵的基础资料。\n    青藏高原典型冰川厚度变化数据的时间段为2000-2013年，覆盖范围为普若岗日和祁连山西部地区，空间分辨率30米。利用TanDEM-X双站InSAR数据和C波段 SRTM DEM，首先采用差分干涉测量方法高精度的生成TanDEM-X DEM，然后在进行DEM精确配准的基础上，通过对比不同时期获取的DEM数据，估算冰川厚度变化。该数据集采用Geotiff格式，每个典型冰川冰厚变化存储为一个文件夹。\n数据的详细情况见青藏高原典型冰川厚度变化数据集-数据说明。","doi":"10.11888/Glacio.tpdc.270073","projection":"","language":"zh","share_type":"online","east":96.9,"west":96.3,"south":39.2,"north":39.8,"scale":250000,"crs":"","filesize":252.0,"share_policy":"a","ts_created":"2018-02-23T23:01:21+08:00","doi_type":"","ts_updated":"2021-04-19T09:38:52.898659+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":"PDF","project":[10,11],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"","review_status":5,"review_invite":[],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[2,5],"subtopics":{"metadata":"b2abf8f7-b992-48be-9be8-abf808e782b9","three_pole":"XDA19070104","third_pole":null},"username":"潘小多","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":4059}