本数据集为1986-1990年桥沟流域径流、泥沙观测数据集。桥沟流域位于陕西省榆林市绥德县，属于裴家茂沟（无定河一级支流）的一级支流。此数据集包括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1986-1990年情况说明》。", "ds_source": "
人工定时观测
", "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": "1986-01-01 00:00:00", "ds_acq_end_time": "1990-12-31 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": 170121, "ds_files_count": 4, "ds_format": "xls，doc，pdf", "ds_space_res": null, "ds_time_res": "次", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "54780f52-21db-4d1c-b64f-fb716788e233.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "f447b2e7-0b54-4601-8d49-0164f2a3fd9a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "09314967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2020-12-17 15:05:26", "last_updated": "2023-08-29 15:51:12", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWSDZhan.2020.83", "i18n": { "en": { "title": "Runoff and sediment observation data set of Qiaogou watershed in the first sub-region of Loess Hills and Gullies from 1986 to 1990", "ds_format": "", "ds_source": "Artificially timed observations.
", "ds_quality": "Manual observation is carried out by professional and technical personnel; four levels of manual verification are carried out in the process of data input, which are tabulation, initial calibration, re calibration and audit, so as to ensure the data quality.
", "ds_ref_way": "", "ds_abstract": "This data set is the observation data set of runoff and sediment in Qiaogou watershed from 1986 to 1990. Qiaogou watershed, located in Suide County, Yulin City, Shaanxi Province, is a tributary of peijiamaogou (the first tributary of Wuding River). The data set includes runoff and sediment observation data of three runoff stations. Through water level observation of runoff measurement section and sediment sampling of runoff station, the runoff and sediment amount during runoff generation are calculated. The data include the station distribution map of Qiaogou basin, the section diagram of runoff station, the extraction table of flood hydrological elements and the result table of successive flood measurement. The runoff stations are shown in the description of the situation of Qiaogou basin from 1986 to 1990.
", "ds_time_res": "次", "ds_acq_place": "Suide County, Yulin City, Shaanxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "1. Water level observation: Qiaogou runoff station uses the water gauge on the side wall of the building to measure the water level. In non flood season, the observation is conducted once at 8:00 a.m. in case of rainfall, the daily water level changes slowly twice at 8:00 and 20:00; when the daily water level changes greatly or there is a slow peak and valley, it is observed four times at 2:00, 8:00, 14:00 and 20:00. When the water level changes violently in flood season, the observation shall be made in multiples of 6 minutes. 2. Flow measurement method: when the water level is higher than the delta channel, the flow measurement method is adopted in the rectangular spillway, and the buoy coefficient is the buoy test results of huangweizizhou runoff test station. 3. Sediment sampling and treatment: the midstream buoy method is used to sample the sediment at the flow measurement section. The frequency of sediment sampling depends on the frequency of flood water level change, and the sampling frequency is increased to control the change of sediment concentration at flood peak. The sample was treated by displacement method.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "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", "桥沟", "榆林", "陕西省" ], "ds_time_tags": [ 1986, 1987, 1988, 1989, 1990 ], "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": "雷欣", "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": "郭玉梅", "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" }, { "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" }