陕西省延安市地处黄土高原中部，黄土堆积厚度大、结构疏松。近年来，极端降雨、不合理工程活动引发的黄土地质灾害呈现高发态势。黄土是结构性脆弱和水敏性极强的特殊土，在黄土斜坡地带，大孔隙、垂直节理、卸荷裂隙、落水洞等降雨优势入渗通道发育。\n
本数据集以100MHz钻孔地质雷达数据为基础，根据各物质的介电常数，反演地下介质的埋藏深度、厚度等参数，探测地下空间地质结构。对比实际观测数据，反演数据基本可靠。\n
数据以PDF存储，主要字段有测量时间、道号、采样时间和振幅。
", "ds_source": "100MHz钻孔地质雷达进行数据监测。
", "ds_process_way": "通过WinTomo.exe软件对监测数据进行处理并生成反演数据。
", "ds_quality": "地质雷达操作符合工作规范和操作规程，取得的原始数据真实可靠。
", "ds_acq_start_time": "2019-10-07 00:00:00", "ds_acq_end_time": "2019-10-08 00:00:00", "ds_acq_place": "陕西省延安市", "ds_acq_lon_east": 110.5461111111111, "ds_acq_lat_south": 35.345, "ds_acq_lon_west": 107.65444444444445, "ds_acq_lat_north": 37.49777777777778, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 953632, "ds_files_count": 3, "ds_format": "pdf", "ds_space_res": null, "ds_time_res": "秒", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "e2283494-c5c3-4741-8b5e-ea17e5dfa2f1.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "3e397ebe-36ab-4e95-9b1b-dfce93031c18", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.LANDSLIDE.db2063.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-04-20 15:23:51", "last_updated": "2025-05-28 11:38:39", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.LANDSLIDE.db2063.2022", "i18n": { "en": { "title": "Inversion Data of Geological Radar Monitoring for Loess Slopes in Yan'an City, Shaanxi Province (October 7, 2019)", "ds_format": "pdf", "ds_source": "100 MHz Borehole Geological Radar for Data Monitoring.
", "ds_quality": "The operation of the geological radar complies with work specifications and operating procedures, and the obtained raw data is true and reliable.
", "ds_ref_way": "", "ds_abstract": "Yan'an City, Shaanxi Province is located in the central part of the Loess Plateau, characterized by thick and loosely structured loess deposits. In recent years, loess geological disasters triggered by extreme rainfall and unreasonable engineering activities have shown a high incidence. Loess is a special type of soil with structural fragility and extreme water sensitivity. In loess slope areas, large pores, vertical joints, unloading fractures, sinkholes, and other preferential infiltration channels for rainfall are developed.\n
This dataset is based on 100 MHz borehole geological radar data. According to the dielectric constant of various materials, it inverts parameters such as the burial depth and thickness of underground media to detect the geological structure of underground space. Comparing with actual observation data, the inversion data is basically reliable.\n
The data is stored in PDF format, with main fields including measurement time, trace number, sampling time, and amplitude.
", "ds_time_res": "秒", "ds_acq_place": "Yan'an City, Shaanxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Processing the monitoring data and generating inversion data through the WinTomo.exe software.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC 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": [ "黄土斜坡", "地质雷达", "反演", "埋藏深度" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "陕西省延安市" ], "ds_time_tags": [ 2019 ], "ds_contributors": [ { "true_name": "孙萍萍", "email": "58397809@qq.com", "work_for": "中国地质调查局西安地质调查中心", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "孙萍萍", "email": "58397809@qq.com", "work_for": "中国地质调查局西安地质调查中心", "country": "中国" } ], "ds_managers": [ { "true_name": "敏玉芳", "email": "myf@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": "水文" }