本数据集针对念青唐古拉山东段岗日嘎布地区，数据内容为2015年在岗日嘎布地区开展的野外GPS(Global Positioning System, 全球定位系统)控制点联测成果，数据格式为Excel文件格式，记录内容包括点位编号和点位经度、纬度和海拔高度字段，共包含418条点位测量记录。数据集包含2015年岗日嘎布地区野外GPS控制点联测成果，文件为Excel数据文件，包含的内容为2015年在岗日嘎布地区开展的野外GPS控制点联测成果。数据文件中经度，单位度(°)，精确到小数点后8位；纬度，单位度(°)，精确到小数点后8位；高程，单位米(m)，精确到小数点后3位。
", "ds_source": "2015年野外实测数据。
", "ds_process_way": "以1台华测T5 GNSS为基站，以2台华测T5 GNSS仪器为流动站，通过对岗日嘎布地区的标志性地物（道路交叉点以及桥梁、巨石、建筑物等地物角点）进行野外实地测量产生。测量软件为华测LandStar手簿软件，测量工程设置以CGCS 2000为目标坐标系，以99°为中央经线。点位坐标解算由LandStar软件实时完成，仅选择具有固定解（平面坐标误差<3cm，高程坐标误差<4cm）的点位，测量时间10秒。测量过程用2个前期静态引测中确定的点位坐标进行点校正，确保测量结果和静态测量坐标系统一致。
", "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": "2015-01-01 00:00:00", "ds_acq_end_time": "2015-12-31 00:00:00", "ds_acq_place": "岗日嘎布", "ds_acq_lon_east": 96.8775, "ds_acq_lat_south": 29.227777777777778, "ds_acq_lon_west": 96.82694444444444, "ds_acq_lat_north": 29.33222222222222, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 37795, "ds_files_count": 3, "ds_format": "EXCEL", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "d801d446-838e-4d93-948d-0978be20a7b6.tif", "ds_thumb_from": 2, "ds_ref_way": "郭万钦, 魏俊锋, 鲍伟佳，刘时银, 等.中国科学院西北生态环境资源研究院. 2015年岗日嘎布地区GPS控制点联测数据集. 2019。郭万钦, 魏俊锋, 朱钰, 王荣军, 武震，2015年岗日嘎布山地区GPS控制点联测数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0073.2020.db", "paper_ref_way": "", "ds_ref_instruction": "2015年岗日嘎布地区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）”。收集数据产权属于原数据所有单位，调查数据产权属于中国科学院西北生态环境资源研究院。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": "2020-12-17 15:42:31", "last_updated": "2023-05-16 17:35:39", "protected": false, "protected_to": "2025-06-25 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.104", "i18n": { "en": { "title": "Data set of GPS control points in Gangri Gabu mountain area in 2015", "ds_format": "", "ds_source": "Field measured data in 2015.
", "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": "\nGuo wanqin, Wei Junfeng, Bao Weijia, Liu Shiyin, et al. Northwest Institute of ecological environment and resources, Chinese Academy of Sciences. Data set of GPS control points in Gangri Gabu area in 2015. \n2019. Guo wanqin, Wei Junfeng, Zhu Yu, Wang Rongjun, Wu Zhen, 2015 Gangri Gabu Mountain Area GPS control point joint survey data set, national glacier frozen soil desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0073.2020.db", "ds_abstract": "This data set is aimed at Gangri Gabu area in the eastern section of nyainqentanglala. The data content is the field GPS (Global Positioning System) control point joint survey results carried out in Gangri Gabu area in 2015. The data format is excel file format. The record content includes the point number and the field of point longitude, latitude and altitude, including 418 point measurement records. The data set contains the results of field GPS control points joint survey in Gangri Gabu area in 2015, the file is excel data file, and the content includes the field GPS control point joint survey results carried out in Gangri Gabu area in 2015. To the decimal point (°), the unit is accurate to the decimal point (°), and the unit is accurate to the decimal point (°), and the unit is accurate to the decimal point (°), and the unit is accurate to the decimal point (°).
", "ds_time_res": "", "ds_acq_place": "Gangri Gabu", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Taking one Huace T5 GNSS as the base station and two Huace T5 GNSS instruments as the mobile station, the field survey is carried out on the landmark features (Road intersection, bridges, boulders, buildings and other feature corners) in Gangri Gabu area. The survey software is LandStar Handbook software of China survey. CGCs 2000 is the target coordinate system and 99 ° is the central longitude. The point coordinate solution is completed by LandStar software in real time. Only the points with fixed solution (plane coordinate error & lt; 3cm, elevation coordinate error & lt; 4cm) is selected, and the measurement time is 10 seconds. In the measurement process, two point coordinates determined in the previous static survey are used for point correction to ensure that the measurement results are consistent with the static measurement coordinate system.
", "ds_ref_instruction": "\nThe data set of GPS control points in Gangri Gabu area in 2015 is derived 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 the collected data belongs to the original data owner, and the property right of the survey data belongs to the Northwest Institute of ecological environment and resources, 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, "license_type": "CC BY 4.0", "ds_topic_tags": [ "GPS", "岗日嘎布", "控制点" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "岗日嘎布" ], "ds_time_tags": [ 2015 ], "ds_contributors": [ { "true_name": "郭万钦", "email": "guowq@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "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" }, { "true_name": "朱钰", "email": "", "work_for": "中国科学院西北生态环境资源研究院", "country": "" }, { "true_name": "王荣军", "email": "", "work_for": "中国科学院西北生态环境资源研究院", "country": "" }, { "true_name": "武震", "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": "郭万钦", "email": "guowq@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "冰川" }