本数据使用高精度瞬变电磁仪（HPTEM-18）对大兴安岭东坡卡马兰河流域多年冻土进行探测，其以样地土壤剖面为单位分组，记录剖面对应的相对电阻值分布。数据包括：样地编号、调查时间、经度、纬度、位点、深度（m）、相对电阻值（Ω）。", "ds_source": "
本数据的提供单位是哈尔滨师范大学地理科学学院，由黑龙江省寒区地理环境监测与空间信息服务重点实验室提供，对大兴安岭东坡卡马兰河流域多年冻土进行探测，使用高精度瞬变电磁仪（HPTEM-18）测得，数据时间为2023年7月1日-2024年8月31日。", "ds_process_way": "
1.样地设置需覆盖典型生境，并按梯度分布(如海拔、植被类型)，数据采集需兼顾代表性，记录样地编号、采集时间、GPS坐标等关键信息。\n
2.质量控制员全程参与，检查记录完整性、数据标记准确性，及时修正偏差。\n
3.采集规范：数据采集频率为6.25 Hz，叠加次数为300，重复次数为2，测量深度设置为20 m。\n
4.使用.HPTEM工程文件，在HPTEMDataProcess软件中设置参数（约束系数、反演系数、目标深度、开始点号和结束点号等），得到了视电阻率剖面图，并将电阻率数据以表格形式导出。", "ds_quality": "
本数据使用高精度瞬变电磁仪（HPTEM-18），等值反磁通瞬变电磁法（OCTEM）测得，数据采集频率设置为6.25 Hz，仪器步长设置为5 m（钻孔周边）或10 m（非钻孔周边），测量深度设置为20 m，总计测得100米长剖面数据7条和50米长剖面数据31条，测量点总计376个。", "ds_acq_start_time": "2023-07-01 00:00:00", "ds_acq_end_time": "2024-08-31 00:00:00", "ds_acq_place": "大兴安岭东坡卡马兰河流域", "ds_acq_lon_east": 123.5, "ds_acq_lat_south": 51.86611111111111, "ds_acq_lon_west": 122.61944444444444, "ds_acq_lat_north": 52.35888888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 908691, "ds_files_count": 2, "ds_format": "*.xlsx", "ds_space_res": "", "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "830405bf-7e4b-41b6-b5b6-4b98c229abbf.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "221ebf56-1b0b-4574-972b-1fb6d3cf1be7", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2026-03-31 18:20:59", "last_updated": "2026-05-11 17:43:37", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB7238.2026", "i18n": { "en": { "title": "Measurement data of permafrost transient electromagnetic instrument in the Kamaran River Basin on the east slope of Daxing'anling Mountains (2023-2024)", "ds_format": "*.xlsx", "ds_source": "
The provider of this data is the School of Geographic Sciences at Harbin Normal University, provided by the Key Laboratory of Cold Region Geographic Environment Monitoring and Spatial Information Services in Heilongjiang Province. The permafrost in the Kamaran River Basin on the east slope of the Greater Khingan Range was detected using a high-precision transient electromagnetic instrument (HPTEM-18), and the data was collected from July 1, 2023 to August 31, 2024.", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "
This data uses a high-precision transient electromagnetic instrument (HPTEM-18) to detect the permafrost in the Kamaran River Basin on the eastern slope of the Greater Khingan Range. The soil profiles of the sample plots are grouped and the relative resistance value distribution corresponding to the profiles is recorded. The data includes: plot number, survey time, longitude, latitude, location, depth (m), and relative resistance value (Ω).", "ds_time_res": "", "ds_acq_place": "Kamaran River Basin on the East Slope of Daxing'an Mountains", "ds_space_res": "", "ds_projection": "", "ds_process_way": "
1. The sample plot should cover typical habitats and be distributed according to gradients (such as altitude and vegetation type). Data collection should take into account representativeness, recording key information such as plot number, collection time, GPS coordinates, etc.\r\n
2. The quality controller is fully involved in checking the completeness of records, accuracy of data labeling, and timely correction of deviations.\r\n
3. Collection specifications: The data collection frequency is 6.25 Hz, the stacking frequency is 300, the repetition frequency is 2, and the measurement depth is set to 20 m.\r\n
4. Use The HPTEM engineering file was set with parameters (constraint coefficient, inversion coefficient, target depth, start and end point numbers, etc.) in the HPTEMData Process software, resulting in a visual resistivity profile and exporting the resistivity data in a tabular format.", "ds_ref_instruction": "" } }, "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": [ "瞬变电磁", "多年冻土", "卡马兰河流域" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "大兴安岭东坡卡马兰河流域" ], "ds_time_tags": [ 2023, 2024 ], "ds_contributors": [ { "true_name": "臧淑英", "email": "zsy6311@163.com", "work_for": "哈尔滨师范大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "莫天宇", "email": "motianyu.hrbnu@vip.163.com", "work_for": "哈尔滨师范大学", "country": "中国" }, { "true_name": "吴祥文", "email": "hsdwxw@163.com", "work_for": "哈尔滨师范大学", "country": "中国" } ], "ds_managers": [ { "true_name": "孙丽", "email": "sunli_wabb@163.com", "work_for": "哈尔滨师范大学", "country": "中国" } ], "category": "冻土" }