本数据集针对阿尔泰山友谊峰地区，包括阿尔泰山友谊峰地区冰川及周边区域，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1959-2008年阿尔泰山友谊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ElevationChange1959-2000和ElevationChange2000-2008 2个文件，字段度量单位为米（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1959-2000和2000-2008两期。本数据集收集数据主要为阿尔泰山友谊峰地区，包括阿尔泰山友谊峰地区冰川及周边区域。
", "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": "1959-01-01 00:00:00", "ds_acq_end_time": "2008-12-31 00:00:00", "ds_acq_place": "阿尔泰山友谊峰", "ds_acq_lon_east": 87.89, "ds_acq_lat_south": 49.03, "ds_acq_lon_west": 87.56666666666666, "ds_acq_lat_north": 49.169999999999995, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 3390356, "ds_files_count": 3, "ds_format": "TIFF", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "4941da37-e83d-4d17-a701-855ea79e4dda.jpg", "ds_thumb_from": 2, "ds_ref_way": "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. 1959-2008年阿尔泰山友谊峰地区冰川表面高程变化数据集. 2019。刘时银, 魏俊锋，1959-2008年阿尔泰山友谊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.0043.2020.db", "paper_ref_way": "", "ds_ref_instruction": "1959-2008年阿尔泰山友谊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）”。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 10:38:02", "last_updated": "2023-05-16 17:34:59", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.113", "i18n": { "en": { "title": "Data set of glacier surface elevation change in youyifeng area of Altai mountain from 1959 to 2008", "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 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": "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 youyifeng area, Altai mountain, 1959-2008. 2019.
", "ds_abstract": "This data set aims at the area of friendship peak in Altai mountain, including glaciers and surrounding areas in the area of friendship peak in Altai mountain. Using DEM from topographic map, SRTM (2000) and DEM extracted from remote sensing image, the elevation change of glacial surface in the center of glaciation can be obtained through difference calculation. Only for the elevation change of glacier surface in Youyi peak area of Altai mountain from 1959 to 2008, it is not supplemented and improved, and it is fully open sharing. The dataset contains two files, elevationchange1959-2000 and elevationchange2000-2008. The unit of measurement of the field is 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 1959-2000 and 2000-2008. The data collected in this data set are mainly from the area of friendship peak in Altai mountain, including glaciers and surrounding areas.
", "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": " From 1959 to 2008, the data set of glacier surface elevation change in Youyi peak area of Altai mountain comes from the \"investigation of ice change in main glacial action centers in Western China\" (2013fy111400), a special project of basic scientific and technological work. 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, "recommendation_value": 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": [ "阿尔泰山友谊峰", "DEM", "冰面高程变化" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "冰面高程变化", "DEM", "阿尔泰山友谊峰" ], "ds_time_tags": [ 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 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 ], "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": "魏俊锋", "email": "weijunfeng@hnust.edu.cn", "work_for": "湖南科技大学地球科学与空间信息工程学院", "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" }