本数据集针对天山乌鲁木齐河源1号冰川，数据集包括序号、经度、纬度、海拔。数据集包含82条记录，主要通过采购了该地区国家一级控制点，利用国家一级控制点进行静态测量，同步测量时间1小时以上，通过解算获取冰川区控制点；通过DGPS RTK进行动态联测获取。完全开放共享。数据集中经度，单位度(°)，纬度，单位度(°)，高程，即当年冰川表面高程，单位米(m)。
", "ds_source": "自主产生。本数据集主要为实测数据，数据主要来源为国家一级控制点静态测量，DGPS RTK动态联测。
", "ds_process_way": "在数据实测中，进行了国家一级控制点静态测量，通步测量时间1小时以上，通过解算获取冰川区控制点；DGPS RTK测量过程规范化和标准化，并严格复核。
", "ds_quality": "采用4-6台华测X20或T5 GNSS进行联测，同步测量时间1小时以上，并采用1-3个国家级控制点进行联测；成果解算精度控制在2cm以内
", "ds_acq_start_time": "2013-08-01 00:00:00", "ds_acq_end_time": "2016-08-01 00:00:00", "ds_acq_place": "乌鲁木齐河源1号冰川", "ds_acq_lon_east": 86.75, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": 43.11666666666667, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 36740, "ds_files_count": 3, "ds_format": "EXCEL", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "2e5f2ceb-f56a-41a0-ad5a-92428b45f4aa.jpg", "ds_thumb_from": 2, "ds_ref_way": "李忠勤，王文彬，王璞玉， 等. 中科院寒区旱区环境与工程研究所. 2013年和2016年天山乌鲁木齐河源1号冰川主流线冰面高程变化数据集. 2019。李真, 王文兵，2013年和2016年天山乌鲁木齐河源1号冰川主流线冰面高程变化数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0060.2020.db", "paper_ref_way": "", "ds_ref_instruction": "2013年和2016年天山乌鲁木齐河源1号冰川主流线冰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Microsoft office软件打开查看，也可以导入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": "2020-12-22 10:15:16", "last_updated": "2023-05-16 17:34:29", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.107", "i18n": { "en": { "title": "Dataset of ice surface elevation changes in the mainstream line of the Urumqi River source 1 glacier in the Tianshan Mountains in 2013 and 2016", "ds_format": "", "ds_source": "Self generated. This data set is measured data, and the main data sources are static measurement of national national primary control points and dynamic joint measurement of DGPS RTK.
", "ds_quality": "4-6 stations of China Survey X20 or T5 GNSS are used for joint survey, the synchronous measurement time is more than 1 hour, and 1-3 national control points are used for joint survey; the result calculation accuracy is controlled within 2cm
", "ds_ref_way": "Li Zhongqin, Wang Wenbin, Wang Puyu, et al. Institute of environment and Engineering in cold and arid regions, Chinese Academy of Sciences. Data sets of ice surface elevation changes along the mainstream line of Glacier No.1 at the headwaters of Urumqi River in Tianshan Mountains in 2013 and 2016. 2019. Li Zhen, Wang Wenbing, 2013 and 2016 ice surface elevation change data set of No.1 glacier mainstream line at the headwaters of Urumqi River, Tianshan Mountains, China（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0060.2020.db", "ds_abstract": "This data set is aimed at Glacier No.1 at the source of Urumqi River in Tianshan Mountains. The data set includes serial number, longitude, latitude and altitude. The data set contains 82 records, which are mainly obtained by purchasing the national first-class control points in the region, using the national first-class control points for static measurement, synchronous measurement time of more than 1 hour, obtaining the glacier area control points by solving, and obtaining the dynamic joint measurement through DGPS RTK. Fully open sharing. In the data set, longitude, unit degree (°), latitude, unit degree (°), elevation, that is, the glacier surface elevation in the current year, unit meter (m).
", "ds_time_res": "", "ds_acq_place": "Glacier No.1 at the headwaters of Urumqi River", "ds_space_res": "", "ds_projection": "", "ds_process_way": "In the data measurement, the static measurement of the national first level control points was carried out, and the step measurement time was more than 1 hour, and the control points in the glacier area were obtained through the calculation; the DGPS RTK measurement process was standardized and standardized, and strictly reviewed.
", "ds_ref_instruction": " \nIn 2013 and 2016, the data sets of ice surface elevation change along the main stream line of Glacier No.1 at the headwaters of Urumqi River in Tianshan Mountains were obtained from the special project of basic scientific and technological work \"survey of ice quantity change in major glaciation centers in Western China (2013fy111400)\". The property right of the data belongs to the Institute of environment and Engineering in cold and arid areas of Chinese Academy of Sciences. This data set can be opened and viewed by Microsoft office software or imported into GIS software for graphic visualization." } }, "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, "belong_to_nieer": false, "ds_topic_tags": [ "GPS", "乌鲁木齐河源1号冰川", "冰面高程" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "乌鲁木齐，河源1号，冰川" ], "ds_time_tags": [ 2013, 2016 ], "ds_contributors": [ { "true_name": "李真", "email": "lizhen@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" }, { "true_name": "王文兵", "email": "", "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": "李真", "email": "lizhen@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" }