本数据集为延安湫摊子黄土边坡区域获取的无人机瞬变电磁实测数据，采用 FlyCart 30 无人机搭载宽频特种线圈瞬变电磁系统获取，实验中心位置为经度 109.305725098°、纬度 36.577606201°。数据生产过程中共获取三组实测数据，包括悬停试验、小面积飞行试验及大面积飞行试验。原始数据为无人机航空瞬变电磁时域电压序列，大部分数据的时间范围覆盖了 0.3-17 毫秒 内的有效衰减信号，空间范围随无人机航迹分布。数据集内容包括发射参数、测线编号、测点坐标及高程及对应的时序电磁响应等信息，具备米级空间定位精度及微秒级时间数据采样率。本数据特点在于采用高磁矩（≥400安培平方米）轻量化（≤10 公斤）自研系统，作为针对黄土边坡环境获取的实测电磁数据，本数据集剖面间一致性好，可为黄土体结构探测及相关算法验证提供可靠参考。
", "ds_source": "本数据来源于自主研发的无人机瞬变电磁系统在延安黄土边坡区域开展的野外实测，属于试验观测数据。采用Flycart 30无人机搭载自主研发的宽频特种线圈瞬变电磁系统，该系统发射磁矩不低于400 安培平方米，关断时间小于10 微秒，整体重量控制在10公斤以内，接收系统动态噪声水平低于2纳特每秒。使用该装置在设定区域开展航空瞬变电磁观测，包括悬停试验、小面积飞行与大面积飞行三种模式，数据采集时间范围为0.3‑17 毫秒，同步记录各测点坐标、高程及发射参数。飞行过程保持30 km/h航速，并通过GPS实现米级定位。
", "ds_process_way": "", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2024-08-13 00:00:00", "ds_acq_end_time": "2024-08-14 00:00:00", "ds_acq_place": "延安地区", "ds_acq_lon_east": 109.30833333333334, "ds_acq_lat_south": 36.57611111111112, "ds_acq_lon_west": 109.30277777777778, "ds_acq_lat_north": 36.57888888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 2737307, "ds_files_count": 0, "ds_format": "*.dat", "ds_space_res": "1m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "Albers Equal Area Conic Projection System", "ds_thumbnail": "b53f2550-ce48-45aa-b52b-4d36929f079b.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "", "organization_id": "bf138922-7121-438c-8d1b-19d5f751c907", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.loess.db7341.2026", "subject_codes": [ "170.2540" ], "quality_level": 0, "publish_time": "2026-05-21 17:23:28", "last_updated": "2026-05-21 17:35:34", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.loess.db7341.2026", "i18n": { "en": { "title": "Airborne Transient Electromagnetic (TEM) Survey Data Acquired by UAV in Lanzhou Region, Gansu, China", "ds_format": "*.dat", "ds_source": "This data is derived from field measurements conducted by a self-developed unmanned aerial vehicle transient electromagnetic system in the loess slope area of Yan'an, and belongs to experimental observation data. The Flycart 30 drone is equipped with a self-developed wideband special coil transient electromagnetic system. The system emits a magnetic moment of not less than 400 amperes per square meter, with a turn off time of less than 10 microseconds. The overall weight is controlled within 10 kilograms, and the dynamic noise level of the receiving system is less than 2 nanotons per second. Use this device to conduct airborne transient electromagnetic observations in a designated area, including hover tests, small area flights, and large area flights. The data collection time range is 0.3-17 milliseconds, and the coordinates, elevations, and emission parameters of each measurement point are synchronously recorded. Maintain a speed of 30 km/h during the flight and achieve meter level positioning through GPS.", "ds_quality": "
The data quality is good.
", "ds_ref_way": "", "ds_abstract": "This dataset is obtained from the unmanned aerial vehicle transient electromagnetic measurement data in the loess slope area of Qiuzhangzi, Yan'an. The FlyCart 30 unmanned aerial vehicle was equipped with a broadband special coil transient electromagnetic system to obtain the data. The experimental center is located at longitude 109.305725098 ° and latitude 36.577606201 °. During the data production process, three sets of measured data were obtained, including hover tests, small-scale flight tests, and large-scale flight tests. The original data is the time-domain voltage sequence of transient electromagnetic waves in unmanned aerial vehicle (UAV) aviation. Most of the data covers effective attenuation signals within 0.3-17 milliseconds in time range, and the spatial range varies with the UAV trajectory distribution. The dataset includes emission parameters, measurement line numbers, measurement point coordinates and elevations, and corresponding temporal electromagnetic responses, with meter level spatial positioning accuracy and microsecond level time data sampling rate. The characteristic of this data is the use of a self-developed system with high magnetic moment (≥ 400 ampere square meters) and lightweight (≤ 10 kilograms). As the measured electromagnetic data obtained for the loess slope environment, this dataset has good consistency between profiles and can provide reliable reference for loess structure detection and related algorithm verification.", "ds_time_res": "", "ds_acq_place": "Yan'an area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "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, "belong_to_nieer": false, "ds_topic_tags": [ "无人机瞬变", "时域电压", "FlyCart 30", "黄土边坡" ], "ds_subject_tags": [ "空间物理探测" ], "ds_class_tags": [], "ds_locus_tags": [ "中国", "延安地区" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "闫家贺", "email": "yanjh23@mails.jlu.edu.cn", "work_for": "吉林大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "韦老闹", "email": "weiln2021@163.com", "work_for": "吉林大学", "country": "中国" } ], "ds_managers": [ { "true_name": "闫家贺", "email": "yanjh23@mails.jlu.edu.cn", "work_for": "吉林大学", "country": "中国" } ], "category": "其他" }