本数据集为2025年桥沟流域3个径流站径流、泥沙观测数据，通过径流站测流断面水位观测，泥沙取样，计算产流时的径流、泥沙量。数据包括桥沟流域站点分布图、径流站测流断面图、洪水水文要素摘录表、逐次洪水测验成果表。径流站情况见《桥沟流域2025年情况说明》。观测指标有水位、流量、含沙量、输沙率、雨量、历时和平均强度、洪水总量、洪水历时、洪水输沙量、流量、含沙量、单位面积径流量、径流系数、日平均流量、月平均流量、年平均流量、年径流量、径流模数、径流深度日平均含沙量、月平均含沙量、年平均含沙量、月最大、最小含沙量、日平均悬移质输沙率、月平均输沙率、年输沙量、年侵蚀模数等。", "ds_source": "
桥沟流域位于陕西省榆林市绥德县，属于无定河一级支流。桥沟流域降水观测为汛期观测（6~9月）。桥沟流域布设有3个径流站。
", "ds_process_way": "1.水位观测：桥沟径流站利用建筑物侧壁上的水尺进行水位测定，非汛期每日8时观测一次，如有降雨，日水位变化缓慢时8时、20时观测两次；日水位变化较大或出现缓慢的峰谷时按2时、8时、14时、20时观测四次。汛期水位变化剧烈时按6分钟的倍数观测。 2.测流方式：平水时采用三角槽测流；水位高于三角槽时，在矩形溢洪道采用浮标法测流，浮标系数采用黄委子洲径流试验站浮标试验结果。 3.泥沙取样及处理：测流断面泥沙采用中泓浮标法取样，取沙次数取决于洪水水位变化的次数，洪峰时为控制含沙量变化而增加取样次数。样品处理采用置换法。
", "ds_quality": "由专业技术人员进行人工观测；数据录入过程中经过四级人工校核，分别是制表、初校、复校、审核，以确保数据质量。
", "ds_acq_start_time": "2025-01-01 00:00:00", "ds_acq_end_time": "2025-12-31 00:00:00", "ds_acq_place": "陕西省榆林市绥德县桥沟流域", "ds_acq_lon_east": 110.29555555555555, "ds_acq_lat_south": 37.49277777777778, "ds_acq_lon_west": 110.29138888888889, "ds_acq_lat_north": 37.50361111111111, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 394192, "ds_files_count": 7, "ds_format": "xls，doc，pdf", "ds_space_res": "", "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "431f4e6c-b69d-423b-a3bf-7b110a1ad5a3.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "f447b2e7-0b54-4601-8d49-0164f2a3fd9a", "ds_serv_man": null, "ds_serv_phone": null, "ds_serv_mail": null, "doi_value": "", "subject_codes": [], "quality_level": 0, "publish_time": "2026-10-21 15:22:37", "last_updated": "2026-10-21 15:22:37", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.hwsdzhan.db7743.2026", "i18n": { "en": { "title": "Runoff and sediment observation data set of Qiaogou watershed in the first sub region of Loess Hilly and gully region in 2025", "ds_format": "", "ds_source": "The Qiao Gou river basin is located in Suide County, Yulin City, Shaanxi Province. It is a secondary tributary of the Wuding River. Observations on precipitation in the Qiao Gou river basin are conducted during the rainy season, from June to September. There are three runoff stations established in the Qiao Gou river basin.", "ds_quality": "The data is manually observed by professional technicians. During the data entry process, the data goes through four levels of manual verification: table creation, initial verification, re-verification, and final review, to ensure the quality of the data.
", "ds_ref_way": "", "ds_abstract": "This dataset is the runoff and sediment observation data of three runoff stations in Qiaogou Basin in 2025. Through water level observation at the flow measuring section of the runoff stations and sediment sampling, the runoff and sediment amount during runoff production are calculated. The data includes station distribution map of Qiaogou Basin, flow measurement cross sections of runoff stations, flood hydrological elements extract table, and successive flood test results table. See the \"Qiaogou Basin Situation Description in 2025\" for the situation of the runoff station. Observation indicators include water level, flow, sediment concentration, sediment transport rate, rainfall, duration and average intensity, total flood volume, flood duration, flood sediment transport, flow, sediment concentration, runoff per unit area, runoff coefficient, daily average flow, monthly average flow, annual average flow, annual runoff, runoff modulus, daily average sediment concentration, monthly average sediment concentration, annual average sediment concentration, monthly maximum and minimum sediment concentration, daily average suspended load sediment transport rate, monthly average sediment transport rate, monthly average sediment transport rate, Annual sediment transport, annual erosion modulus, etc.", "ds_time_res": "times", "ds_acq_place": "Qiaogou River Basin, Suide County, Yulin City, Shaanxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "
1. Water level measurement: The bridge gully runoff station uses water gauges installed on the side walls of buildings to measure the water level. During non-flood seasons, measurements are taken once per day at 8 am. In case of rainfall or when the daily water level changes slowly, measurements are taken twice more, at 8 am and 8 pm. When the daily water level changes significantly or there are sharp peaks and valleys, measurements are taken four times: at 2 pm, 8 pm, 2 pm, and 8 pm. During the flood season, when the water level changes rapidly, measurements are taken every 6 minutes. \r\n2. Flow measurement: During normal times, triangular troughs are used for flow measurement. When the water level exceeds the height of the triangular troughs, floating markers are used in the rectangular spillway to measure the flow. The floating marker coefficients are based on results obtained from tests conducted at the Zi Zhou Runoff Station under the Yellow River Commission’s supervision. \r\n3. Sediment sampling and processing: Sediment samples are collected using the floating marker method at the flow measurement stations. The frequency of sampling depends on the number of times the water level changes during floods. During peak floods, additional samples are taken to accurately measure the sediment content. Sample processing is carried out using the replacement method.
", "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, "allow_update_data": false, "created_from": "fair", "ds_topic_tags": [ "径流模数", "径流系数", "输沙率", "水位", "侵蚀模数", "流量", "含沙量", "径流深度", "径流量", "土壤流失量" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "绥德", "陕西省", "桥沟", "榆林" ], "ds_time_tags": [ 2025 ], "ds_contributors": [ { "true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "麦旭东", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "ds_managers": [ { "true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "category": "水土保持" }