本数据集针对念青唐古拉山主峰地区，包括念青唐古拉山主峰冰川及周边区域，利用地形图DEM、SRTM（2000）与遥感影像提取的DEM，通过差值计算，获取冰川作用中心冰川表面高程变化。只针对1970-2014年念青唐古拉山主峰地区冰川表面高程变化，故不进行补充和完善，采用完全开放共享。数据集包含ElevationChange1970-2000和ElevationChange2000-2014，共2个波段。字段度量单位：米（m）。数据集主要为遥感影像提取资料，仅表示遥感影像获取时间的冰川表面高程变化，时间为1970-2000和2000-2014两期。
", "ds_source": "本数据集主要为解译数据，数据主要来源为地形图DEM、SRTM（2000）与遥感影像提取的DEM。
", "ds_process_way": "利用地形图DEM、SRTM（2000）与遥感影像提取的DEM，通过差值计算，获取冰川作用中心冰川表面高程变化。
", "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": "1970-01-01 00:00:00", "ds_acq_end_time": "2014-12-31 00:00:00", "ds_acq_place": "念青唐古拉山主峰", "ds_acq_lon_east": 91.03, "ds_acq_lat_south": 29.860000000000003, "ds_acq_lon_west": 89.96000000000001, "ds_acq_lat_north": 30.790000000000003, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 25901570, "ds_files_count": 3, "ds_format": "TIFF", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "9ece1ae3-e969-4097-82a3-d5cf767e9839.jpg", "ds_thumb_from": 2, "ds_ref_way": "引用方式建议采用如下方式：刘时银, 魏俊锋, 吴坤鹏， 等. 中科院寒区旱区环境与工程研究所. 1970-2014年念青唐古拉山主峰地区冰川表面高程变化数据集. 2019。 使用申明建议采用如下方式：1970-2014年念青唐古拉山主峰地区冰川表面高程变化数据集来源于科技基础性工作专项“中国西部主要冰川作用中心冰量变化调查（2013FY111400）”。刘时银, 吴坤鹏，1970-2014年念青唐古拉山主峰地区冰川表面高程变化数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0076.2020.db", "paper_ref_way": "", "ds_ref_instruction": "数据产权属于中科院寒区旱区环境与工程研究所。本数据集可用地理信息系统软件进行图形可视化。", "ds_from_station": "中国西部主要冰川作用中心冰量变化调查", "organization_id": "75b2f6d5-c7ed-438c-b7be-98672c057ed5", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-01-07 10:52:10", "last_updated": "2023-05-16 17:35:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.128", "i18n": { "en": { "title": "Data set of glacier surface elevation changes in the main peak area of Tanggula Mountain, Nianqing, 1970-2014", "ds_format": "", "ds_source": "This data set is mainly interpretation data, and the main data sources are topographic map DEM, SRTM (2000) and remote sensing image DEM.
", "ds_quality": "After checking the accuracy of DEM in different periods, we use the cosine relationship between slope aspect and elevation difference to carry out plane and elevation correction; then we use the relationship between maximum curvature and elevation difference to reduce the error caused by different resolutions, carry out registration and relative accuracy evaluation on the two periods of DEM, and get the glacier elevation changes in different periods.
", "ds_ref_way": "It is suggested to adopt the following methods: Liu Shiyin, Wei Junfeng, Wu Kunpeng, et al. Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences. Data set of glacier surface elevation change in the main peak area of Tanggula Mountain, Nianqing, 1970-2014. 2019.
\nThe statement of use is recommended to adopt the following method: 1970-2014 Ningqing Tanggula Mountain peak area glacier surface elevation change data set is derived from the science and technology basic work special project \"Ice Change Survey of Major Glacier Action Centers in Western China (2013FY111400)\". ", "ds_abstract": "
This data set aims at the main peak area of Nianqing Tanggula Mountain, including the main peak glacier and surrounding areas of Nianqing Tanggula Mountain. Using the DEM extracted from topographic map, SRTM (2000) and remote sensing image, the surface elevation change of glacial center is obtained by difference calculation. Only for the change of glacier surface elevation in the main peak area of Tanggula Mountain in Nianqing from 1970 to 2014, it is not supplemented and improved, and it is fully open sharing. The dataset contains two wavebands, elevationchange1970-2000 and elevationchange2000-2014. Field measurement unit: meter (m). The data set mainly includes remote sensing image extraction data, which only represents the glacier surface elevation change at the acquisition time of remote sensing image. The time is 1970-2000 and 2000-2014.
", "ds_time_res": "", "ds_acq_place": "", "ds_space_res": "30.0m", "ds_projection": "", "ds_process_way": "Using DEM from topographic map, SRTM (2000) and remote sensing image, the elevation change of glacier surface in the center of glaciation was obtained by difference calculation.
", "ds_ref_instruction": " The data property right belongs to the Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences. This data set can be visualized by GIS software." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/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": [ "冰面高程变化", "念青唐古拉山主峰", "DEM" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "念青唐古拉山主峰" ], "ds_time_tags": [ 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, 2013, 2014 ], "ds_contributors": [ { "true_name": "刘时银", "email": "liusy@lzb.ac.cn", "work_for": "云南大学国际河流与生态安全研究院", "country": "中国" }, { "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_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": "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" }, { "true_name": "刘时银", "email": "liusy@lzb.ac.cn", "work_for": "云南大学国际河流与生态安全研究院", "country": "中国" } ], "category": "冰川" }