本数据集针对珠峰地区，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1974-2006年珠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ElevationChange1974-2000和ElevationChange2000-2006，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1974-2000和2000-2006两期。
", "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": "1974-01-01 00:00:00", "ds_acq_end_time": "2006-12-31 00:00:00", "ds_acq_place": "珠峰", "ds_acq_lon_east": 86.96666666666667, "ds_acq_lat_south": 27.966666666666665, "ds_acq_lon_west": 86.71666666666667, "ds_acq_lat_north": 28.166666666666668, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 586693, "ds_files_count": 3, "ds_format": "TIFF", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "22770e53-b2ed-422f-91fa-a43d040e9fbd.jpg", "ds_thumb_from": 2, "ds_ref_way": "使用申明：1974-2006年珠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）”。 引用方式： 1.Ye, Q., T. Bolch, R. Naruse, et al. (2015). Glacier mass changes in Rongbuk catchment on Mt. Qomolangma from 1974 to 2006 based on topographic maps and ALOS PRISM data. Journal of Hydrology, 530, 273-280.DOI:10.1016/j.jhydrol.2015.09.014 2.叶庆华,程维明,赵永利,等.青藏高原冰川变化遥感监测研究综述[J].地球信息科学学报,2016,18(7):920-930. [Ye Q H, Cheng W M, Zhao Y L, et al. 2016. A review on the research of glacier changes on the Tibetan Plateau by remote sensing technologies. Journal of Geo-information Science, 18(7):920-930 ] DOI:10.3724/SP.J.1047.2016.00920。叶庆华, 宗继彪，1974-2006年珠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.0032.2020.db", "paper_ref_way": "", "ds_ref_instruction": "数据产权属于中国科学院青藏高原研究所。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 11:34:02", "last_updated": "2023-05-16 17:35:54", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.150", "i18n": { "en": { "title": "Data set of glacier surface elevation changes in the Everest region from 1974 to 2006", "ds_format": "", "ds_source": "This data set is mainly interpreted data. The main data sources are DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing image.
", "ds_quality": "After checking the accuracy of DEM in different periods, the plane and elevation are corrected by using the cosine relationship between slope aspect and elevation difference. Then, the relationship between the maximum curvature and elevation difference is used to reduce the error caused by different resolutions. The DEM registration and relative accuracy evaluation of the two periods are carried out, and the glacier elevation changes in different periods are obtained
", "ds_ref_way": "Application statement: the data set of glacier surface elevation change in Mt. Qomolangma Region from 1974 to 2006 is derived from the \"survey of ice quantity change in major glaciation centers in Western China (2013fy111400)\". Citation mode:\n1.Ye, Q., T. Bolch, R. Naruse, et al. (2015). Glacier mass changes in Rongbuk catchment on Mt. Qomolangma from 1974 to 2006 based on topographic maps and ALOS PRISM data. Journal of Hydrology, 530, 273-280. DOI:10.1016/j.jhydrol.2015.09.014\n2. Ye Qinghua, Cheng Weiming, Zhao Yongli, et al. A review on the research of glacier changes on the Tibetan Plateau by remote sensing technologies. Journal of geo information science, 2016,18 (7): 920-930, 18(7):920-930 ] DOI:10.3724/SP.J.1047.2016.00920 。 Ye Qinghua, Zong Jibiao, 1974-2006 glacier surface elevation data set, national glacier frozen soil desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0032.2020.db", "ds_abstract": "In this data set, for the Everest area, DEM extracted from topographic map, SRTM (2000) and remote sensing image is used to obtain the elevation change of glacier surface in the center of glaciation through difference calculation. It is only aimed at the change of glacier surface elevation from 1974 to 2006 in Everest area, so it is not supplemented and improved, and it is completely open sharing. The dataset contains two wavebands, elevationchange1974-2000 and elevationchange2000-2006. Field measurement unit: meter (m). The data set is mainly the remote sensing image extraction data, which only represents the glacier surface elevation change at the acquisition time of the remote sensing image. The time is 1974-2000 and 2000-2006.
", "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": " \nThe property right of the data belongs to the Institute of Qinghai Tibet Plateau, Chinese Academy of Sciences. The 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": [ "珠峰", "冰面高程变化", "DEM" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "珠峰" ], "ds_time_tags": [ 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 ], "ds_contributors": [ { "true_name": "叶庆华", "email": "yeqh@itpcas.ac.cn", "work_for": "中国科学院青藏高原研究所", "country": "" }, { "true_name": "宗继彪", "email": "", "work_for": "中国科学院青藏高原研究所", "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": "叶庆华", "email": "yeqh@itpcas.ac.cn", "work_for": "中国科学院青藏高原研究所", "country": "" } ], "category": "冰川" }