本数据为资源三号卫星2012年12月12日生成的5m分辨率的DEM，重采用到10m后，与地形图进行配准后，再数据相减后的结果,采用完全开放共享方式。数据集包含ElevationChange1969-2012，共1个文件，包含波段1个。字段度量单位：米（m）。数据集时间为遥感影像获取时间，1969-2012年。
", "ds_source": "自主产生。
", "ds_process_way": "本数据为资源三号卫星2012年12月12日生成的5m分辨率的DEM，重采用到10m后，与地形图进行配准后，再数据相减后的结果, 图集坐标系 UTM WGS84。
", "ds_quality": "对不同时期的DEM进行精度检验后，利用坡度坡向与高程差的余弦关系，进行平面与高程校正；然后利用最大曲率与高程差的关系，降低因不同分辨率带来的误差，对两期DEM进行配准和相对精度评价，得到不同时期的冰川高程变化
", "ds_acq_start_time": "1969-01-01 00:00:00", "ds_acq_end_time": "2012-12-31 00:00:00", "ds_acq_place": "冬克玛底", "ds_acq_lon_east": 92.26666666666667, "ds_acq_lat_south": 32.78, "ds_acq_lon_west": 91.74, "ds_acq_lat_north": 33.330000000000005, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 8380534, "ds_files_count": 3, "ds_format": "TIFF", "ds_space_res": "10.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "905df3d6-e9ad-44d1-a2ac-25b9d601e02f.jpg", "ds_thumb_from": 2, "ds_ref_way": "上官冬辉. 中国科学院寒区旱区环境与工程研究所.1969-2012年唐古拉地区冰川表面高程变化数据集. 2019。
Independent production.
", "ds_quality": "After the accuracy test of DEM in different periods, the cosine relationship between slope direction and elevation difference is used for plane and elevation correction; then the relationship between maximum curvature and elevation difference is used to reduce the error caused by different resolutions, and the registration and relative accuracy evaluation of DEM in two periods are carried out to obtain the elevation change of glacier in different periods
", "ds_ref_way": "\nShangguan Donghui. Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences. 1969-2012 Tanggula glacier surface elevation data set. 2019.
", "ds_abstract": "This data is a 5m resolution DEM generated by the resource 3 satellite on December 12, 2012. After re-use to 10m, it is registered with the topographic map, and then subtracted from the data. It is fully open sharing. The data set contains 1 file, including 1 band, from elevation change 1969-2012. Field measurement unit: meter (m). The data set time is the acquisition time of remote sensing image, 1969-2012.
", "ds_time_res": "", "ds_acq_place": "", "ds_space_res": "10.0m", "ds_projection": "", "ds_process_way": "This data is a 5m resolution DEM generated by the resource 3 satellite on December 12, 2012. After re-use to 10m, it is registered with the topographic map and then subtracted from the data. The atlas coordinate system is UTM WGS84.
", "ds_ref_instruction": "\nThe \"1969-2012 Tanggula area glacier surface elevation change data set\" comes from the special scientific and technological basic work \"investigation on ice volume change of main glacial action centers in Western China (2013fy111400)\"; the property right of \"1969-2012 Tanggula area glacier surface elevation change data set\" belongs to Institute of environment and Engineering in cold and dry areas of Chinese Academy of Sciences, contact: Shangguan Donghui, Gansu Province 320 Chen, Donggang West Road, Chengguan District, Lanzhou City, China, 73000000931-4967396, dhguan@lzb.ac.cn. The data set / atlas is in geotif format, which can be used by general GIS software, remote sensing processing software and image processing software, such as ArcGIS, ERDAS image, envi." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "DEM", "冬克玛底", "冰面高程变化" ], "ds_subject_tags": [ "几何大地测量学" ], "ds_class_tags": [], "ds_locus_tags": [ "冬克玛底" ], "ds_time_tags": [ 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 ], "ds_contributors": [ { "true_name": "上官冬辉", "email": "dhguan@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_meta_authors": [ { "true_name": "吴坤鹏", "email": "wukunpeng2008@lzb.ac.cn", "work_for": "云南大学国际河流与生态安全研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "上官冬辉", "email": "dhguan@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "冰川" }