本数据集针对冷龙岭地区，全球定位系统(Global Position System，GPS)控制点联测数据集包括控制点的序号、经度、纬度、高程。数据集包含485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；通过动态差分GPS进行动态联测获取。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": "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，动态差分GPS动态联测。
", "ds_process_way": "主要通过采购了该地区国家一级控制点，利用天宝公司(Trimble)5800型号的全球定位系统(Global Position System，GPS) 同步测量时间1小时以上，并通过Trimble Geomatics Office 软件进行解算获取冰川区控制点；然后通过动态差分GPS进行动态联测获取，动态差分GPS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": "2014-08-01 00:00:00", "ds_acq_end_time": "2014-08-31 00:00:00", "ds_acq_place": "冷龙岭", "ds_acq_lon_east": 102.2, "ds_acq_lat_south": 37.36666666666667, "ds_acq_lon_west": 101.2, "ds_acq_lat_north": 37.766666666666666, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 41803, "ds_files_count": 3, "ds_format": "EXCEL", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "439e9391-0397-41de-91a4-7038a31a336e.png", "ds_thumb_from": 2, "ds_ref_way": "曹泊, 潘保田, 王杰， 等. 兰州大学. 2014年冷龙岭地区GPS控制点数据集. 2019。曹泊, 崔航，2014年冷龙岭地区GPS控制点数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0012.2020.db", "paper_ref_way": "", "ds_ref_instruction": "2014年冷龙岭地区GPS控制点联测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）”。数据产权属于兰州大学。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": "2020-12-15 17:46:19", "last_updated": "2023-05-16 17:34:49", "protected": false, "protected_to": "2025-06-25 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.96", "i18n": { "en": { "title": "2014 Lenglongling Area GPS control point data set", "ds_format": "", "ds_source": "This data set is mainly measured data, and the main data sources are static measurement of national first-class control points and dynamic differential GPS dynamic joint survey.
", "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": "\nCao Bo, Pan Baotian, Wang Jie, et al. Lanzhou University. 2014 Lenglongling GPS control point data set. 2019. Cao Bo, Cui hang, 2014 Lenglongling GPS control point data set, national glacier and frozen soil desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0012.2020.db", "ds_abstract": "This data set is aimed at Lenglongling area. The data set includes the serial number, longitude, latitude and elevation of the control points. The data set contains 485 records, mainly through the purchase of the national first-class control points in the region, the use of national first-class control points for static measurement, synchronous measurement time of more than 1 hour, through the solution to obtain the glacier area control points; through dynamic differential GPS dynamic joint survey. 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": "Lenglongling", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Through purchasing the first level national control points in the region, the global position system (GPS) of Trimble 5800 model is used to synchronously measure the time of more than 1 hour, and the time is measured through the Trimble Geomatics office The software is used to calculate and obtain the control points in the glacier area; then the dynamic differential GPS is used to obtain the dynamic joint measurement, and the dynamic differential GPS measurement process is standardized and standardized, and strictly rechecked.
", "ds_ref_instruction": "\nIn 2014, the data set of GPS control points in Lenglongling area was obtained from the special project of basic scientific and technological work \"investigation of ice change in major glaciation centers in Western China (2013fy111400)\". The property right of data belongs to Lanzhou University. 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, "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": [ "冷龙岭", "控制点", "GPS" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "冷龙岭" ], "ds_time_tags": [ 2014 ], "ds_contributors": [ { "true_name": "曹泊", "email": "caobo@lzu.edu.cn", "work_for": "兰州大学", "country": "" }, { "true_name": "崔航", "email": "", "work_for": "兰州大学", "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": "曹泊", "email": "caobo@lzu.edu.cn", "work_for": "兰州大学", "country": "" } ], "category": "冰川" }