本数据集包括1961-2024年云南东川蒋家沟泥石流运动要素观测数据，其中还包括1999-2001年泥石流超声波观测泥位数据。", "ds_source": "
流态、龙头时间、龙尾时间、泥面宽、泥深、测速距离、测速时间为人工观测记录，超声波泥位由超声波泥位计观测得到。输沙量、径流量等其他数据由计算得到。详见数据说明文档。", "ds_process_way": "
泥石流运动要素共包括三张数据表：①泥石流运动要素数据表；②泥石流运动要素统计数据表；③泥石流运动要素总体数据表。泥石流运动要素数据表中的序号、流态、龙头时间、龙尾时间、泥面宽、泥深、测速距离、测速时间、容重等为原始观测数据，其他数据由计算得到。泥石流运动要素统计数据表中的数据、泥石流运动要素总体数据表中的数据，由计算统计得到。详细介绍见数据说明文档。", "ds_quality": "
人工校核，数据质量较好。", "ds_acq_start_time": "1961-01-01 00:00:00", "ds_acq_end_time": "2024-12-31 00:00:00", "ds_acq_place": "云南省昆明市东川区蒋家沟", "ds_acq_lon_east": 103.22472222222223, "ds_acq_lat_south": 26.183333333333334, "ds_acq_lon_west": 103.10749999999999, "ds_acq_lat_north": 26.28777777777778, "ds_acq_alt_low": 1042.0, "ds_acq_alt_high": 3269.0, "ds_share_type": "login-access", "ds_total_size": 20286166, "ds_files_count": 286, "ds_format": "*.xlsx,*.docx", "ds_space_res": "", "ds_time_res": "1s", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "35c1f245-65b4-4970-a63b-65f707c1ff36.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "请在论文发表、专利申请、专著出版等工作中标注数据来源，并在公开发表的中文出版物的致谢部分标明“感谢中国科学院东川泥石流观测研究站为本研究提供了相关数据”，在英文论文致谢部分标明“Dongchuan Debris Flow Observation and Research Station (DDFORS), Chinese Academy of Sciences, which provided the field observation data for this study.”。数据问题可联系魏丽（weili@imde.ac.cn）和宋东日（drsong@imde.ac.cn）。", "ds_from_station": null, "organization_id": "a73bd722-b6f5-4789-bc9c-54dd46b9f99d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.55" ], "quality_level": 3, "publish_time": "2025-03-26 11:16:55", "last_updated": "2026-04-09 09:44:25", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.DDFORS.DB6803.2025", "i18n": { "en": { "title": "Debris-flow kinematic data at Jiangjia Ravine, Dongchuan, Yunnan, China, from 1961 to 2024", "ds_format": "", "ds_source": "
The debris-flow kinematic parameters were monitored in a straight channel adjacent to the DDFORS . Observation distances ranged from 50 m to 200 m. Flow time between the two sections was measured using a second chronograph. Depth, defined as the surge front height, was determined by referencing cross-sectional marks on the channel banks, representing the vertical distance between the top of the debris-flow surge and the channel surface . Surface width of debris flow was determined by referencing of channel width. Velocity was calculated by dividing the observation distance by the flow time for each surge as it passed through the cross sections. Bulk density of each surge was determined either through sampling weighting or estimation.\n
During 1999-2001, the flow depth of specific debris-flow surges was simultaneously measured using an Airanger SPL ultrasonic level meter installed directly above the channel with a sampling frequency of 10 Hz . The measurement range extends from 0.3 m to 60 m. The depth value is calculated as the difference between the installation height of the ultrasonic sensors, set at 10 m, and the measured values.", "ds_quality": "
The data quality is reliable after manual verification.", "ds_ref_way": "", "ds_abstract": "
This dataset provide the detailed measurements of kinematic parameters (such as debris-flow velocity, depth, and surge discharge) of surge flows from 1961 to 2024, and flow depth measured by ultrasonic sensors and kinematic elements of surge flows from 1999-2001
", "ds_time_res": "1s", "ds_acq_place": "Jiangjia Ravine, Dongchuan District, Yunnan Province, China", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The discharge, volume, sediment concentration, sediment volume, and sediment transport rate of debris-flow surge were determined based on the observational parameters.For detailed calculation methods, please refer to the attached documentation.", "ds_ref_instruction": "In works such as paper, patent, and monograph, please indicate the data source. In the acknowledgments section of Chinese publications, include the statement “感谢中国科学院东川泥石流观测研究站为本研究提供了相关数据” . In the acknowledgments section of English publications, please state, “We would like to thank the Dongchuan Debris Flow Observation and Research Station (DDFORS), Chinese Academy of Sciences, for providing the field observation data for this study.”For any data-related issues, please contact Li Wei (weili@imde.ac.cn) and Dongri Song (drsong@imde.ac.cn)." } }, "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": [ "泥石流", "流速", "流量", "泥深" ], "ds_subject_tags": [ "水文学" ], "ds_class_tags": [], "ds_locus_tags": [ "东川", "蒋家沟" ], "ds_time_tags": [ 1961, 2024 ], "ds_contributors": [ { "true_name": "宋东日", "email": "drsong@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" }, { "true_name": "钟卫", "email": "zhongwei@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" }, { "true_name": "黎晓宇", "email": "xyli@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" }, { "true_name": "魏丽", "email": "weili@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "魏丽", "email": "weili@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" } ], "ds_managers": [ { "true_name": "宋东日", "email": "drsong@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" }, { "true_name": "魏丽", "email": "weili@imde.ac.cn", "work_for": "云南东川泥石流国家野外科学观测研究站", "country": "中国" } ], "category": "灾害" }