本数据集包括1965、1966、1974、1975、1982、2003-2024年蒋家沟泥石流颗粒级配数据。", "ds_source": "
泥石流样品通过采样平台控制悬挂于采样缆道的铅鱼采集或人工沟边采样，泥沙颗粒级配通过筛分及马尔文激光粒度仪分析得到，详见数据说明文档。", "ds_process_way": "
原始观测数据，未进行加工。", "ds_quality": "
人工校核，数据质量较好。", "ds_acq_start_time": "1965-01-01 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": 1296896, "ds_files_count": 4, "ds_format": "*.xlsx,*.docx", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "711b967a-53b7-4b6b-a972-0863de4154cc.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": [ "170.50" ], "quality_level": 3, "publish_time": "2025-01-02 16:36:49", "last_updated": "2026-04-09 09:45:50", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.DDFORS.DB6721.2025", "i18n": { "en": { "title": "Particle size distribution of debris flows at Jiangjia Ravine, Dongchuan, Yunnan, China, in 1965, 1966, 1974, 1975, 1982, and from 2003 to 2024", "ds_format": "", "ds_source": "
Debris-flow samples are collected by suspending cable sampler or manual sampling. The cable sampling is collected from the moving surges with a bucket that has a diameter of 190 mm and a volume of 0.012 m3 . Manual sampling collects the debris-flow deposition near the channel bank by using a circular or square bucket with a volume of 0.0155 m3 or 0.009 m3, respectively. \nThe sample is air-dried and sieved through a steel mesh for particle size analysis. For sediments larger than 0.25 mm, the particle size is determined using the sieve analysis method. For particles smaller than 0.25 mm, the pycnometer method was employed for particle size distribution analysis before 2004. Since 2004, the Marvin Laser Particle Size Analyzer (model MS2000) has been used.", "ds_quality": "
The data quality is reliable.", "ds_ref_way": "", "ds_abstract": "
The dataset includes particle size distribution of debris flows at Jiangjia Ravine, Dongchuan, Yunnan, China, in 1965, 1966, 1974, 1975, 1982, and from 2003 to 2024.
", "ds_time_res": "", "ds_acq_place": "Jiangjia Ravine, Dongchuan District, Yunnan Province, China", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Raw observational data, unprocessed.", "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, "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": [ "泥石流", "颗粒特征" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "东川", "蒋家沟" ], "ds_time_tags": [ 1965, 1966, 1974, 1975, 1982, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 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" }