本数据为2012年6月利用合众思壮E650静态测量的控制点联测数据,通过3个国家控制点进行平差，成果解算精度控制在2cm以内; 数据格式为Excel文件格式，记录内容包括点名、经度、纬度和高程4个字段，共包含6条点位测量记录，采用公开共享方式。数据集包含2012年冬克玛底地区野外GPS控制点联测成果，文件为Excel数据文件。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，即当年冰川表面高程，单位米(m)，精确到小数点后2位。
", "ds_source": "自主产生。
", "ds_process_way": "本数据为2012年6月利用合众思壮E650静态测量的控制点联测数据,通过3个国家控制点用LandTOP2.05工具进行平差，成果解算精度控制在2cm以内，数据经纬度坐标系 UTM WGS84。其中用合众思壮GPS E650静态测量，按照《全球定位系统（GPS）测量规范》(GB/T18314-2001),并参考《冰川观测与研究方法》（科学出版社2012年）实地测量的数据。
", "ds_quality": "采用4-6台易测E650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": "2012-06-01 00:00:00", "ds_acq_end_time": "2012-06-30 00:00:00", "ds_acq_place": "冬克玛底", "ds_acq_lon_east": 92.26666666666667, "ds_acq_lat_south": 32.78, "ds_acq_lon_west": 91.74, "ds_acq_lat_north": 33.330000000000005, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 31175, "ds_files_count": 3, "ds_format": "EXCEL", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": null, "ds_thumb_from": 2, "ds_ref_way": "上官冬辉. 中国科学院寒区旱区环境与工程研究所. 2012年唐古拉地区GPS控制点联测数据集,2019。上官冬辉，2012年冬克玛底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.0064.2020.db", "paper_ref_way": "", "ds_ref_instruction": "“2012年唐古拉地区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）”；产权归属中国科学院寒区旱区环境与工程研究所，联系人：上官冬辉，甘肃省兰州市城关区东岗西路320#，730000，0931-4967396,dhguan@lzb.ac.cn。", "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 17:56:17", "last_updated": "2023-05-16 17:35:35", "protected": false, "protected_to": "2025-06-25 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.97", "license": null, "i18n": { "en": { "title": "2012 Dongkemadi GPS control points joint survey data set", "ds_format": "", "ds_source": "Self generated.
", "ds_quality": "4-6 E650 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": "\nShangguan Donghui. Institute of environment and Engineering in cold and arid areas, Chinese Academy of Sciences. Data set of GPS control points in Tanggula area in 2012, 2019. Donghui, Shangguan, 2012 Dongkemadi GPS control point joint survey data set, national glacier, permafrost and desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0064.2020.db", "ds_abstract": "This data is the joint survey data of control points from hezhongsizhuang E650 static measurement in June 2012, and the result solution accuracy is controlled within 2cm through three national control points; the data format is excel file format, and the record content includes four fields of point name, longitude, latitude and elevation, including six point measurement records, which is publicly shared. The data set contains the field GPS control point joint survey results in Dongkemadi area in 2012, and the file is excel data file. In the data file, longitude, unit degree (°), accurate to 8 decimal places; latitude, unit degree (°), accurate to 8 decimal places; elevation, that is, the glacier surface elevation of the current year, unit meter (m), accurate to 2 decimal places.
", "ds_time_res": "", "ds_acq_place": "Dongkemadi", "ds_space_res": "", "ds_projection": "", "ds_process_way": "This data is the joint survey data of control points from hezhongsizhuang E650 static measurement in June 2012. Through the adjustment of three national control points with landtop2.05 tool, the result solution accuracy is controlled within 2cm, and the data longitude and latitude coordinate system UTM WGS84. Among them, the GPS E650 static measurement was carried out according to the \"GPS survey specification\" (GB / t18314-2001) and the data from the field survey of \"glacier observation and research methods\" (Science Press, 2012).
", "ds_ref_instruction": "\n\"2012 Tanggula GPS control point joint survey data set\" is derived from the scientific and technological basic work special project \"investigation of ice change in major glaciation centers in Western China (2013fy111400)\"; the property right belongs to the Institute of environment and Engineering in cold and arid regions, Chinese Academy of Sciences, and contact person: Shangguan Donghui, NO.320, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province, 730000931-4967396, dhguan@lzb.ac.cn 。" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "GPS", "冬克玛底", "控制点" ], "ds_subject_tags": [ "几何大地测量学" ], "ds_class_tags": [], "ds_locus_tags": [ "冬克玛底" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "上官冬辉", "email": "dhguan@lzb.ac.cn", "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": "上官冬辉", "email": "dhguan@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" }