本数据集为2001-2010年黄土丘陵沟壑区第三副区桥子沟流域沟口径流站径流泥沙观测数据。桥子沟流域为治理与非治理平行对比观测试验小流域，桥子东沟为治理流域，桥子西沟为非治理流域。径流观测采用浮标法测流速，流速面积法计算流量；泥沙取样与测流同步进行，取样次数与测流次数相同，采用水边一点法取沙样，置换法测含沙量。本数据集包括实测流量成果表、洪水水文要素摘录表、逐次洪水测验成果表、逐日平均流量表、逐日平均含沙量表、逐日平均悬移质输沙率表。
", "ds_source": "人工定点定时观测
", "ds_process_way": "流量观测：桥子东沟、桥子西沟径流站测流建筑物分别为三角形宽顶堰和梯形宽顶堰，小水时用接流筒按体积法施测，洪水用浮标法测速计算流量，浮标系数取0.85。一般每天8时、20时观测两次，洪水期测次视水情增加，要求能测得各次洪峰、谷和完整的洪水过程。 含沙量观测：采用水边一点法取沙样，取样次数与测流次数相同。沙样处理采用置换法。
", "ds_quality": "按照“水土保持试验规范”（SD239）和“水土保持试验规程”（SL419）的规定由专业技术人员进行数据的观测、整理、整编。 观测资料按照“四随”要求，随测、随算、随整理、随分析，发现观测的差错和不合理记录，及时进行处理、改正，并备注说明。 数据整编录入过程中经过制表、初校、复校、审核等四级人工校核，资料整编严格依据相关观测、整编规范规程，按照一校、二校、审核、复审、复核的过程开展，以确保数据成果质量。
", "ds_acq_start_time": "2001-01-01 00:00:00", "ds_acq_end_time": "2010-12-31 00:00:00", "ds_acq_place": "甘肃省天水市秦州区罗玉沟流域桥子沟", "ds_acq_lon_east": 105.72555555555556, "ds_acq_lat_south": 34.60444444444445, "ds_acq_lon_west": 105.70611111111111, "ds_acq_lat_north": 34.62638888888889, "ds_acq_alt_low": 1235.0, "ds_acq_alt_high": 1707.2, "ds_share_type": "apply-access", "ds_total_size": 3397988, "ds_files_count": 102, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "分、日、次", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "c9fd4d8a-4d05-42ea-aba9-ab6812da71ff.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "如需申请使用，请联系数据贡献者“黄河水土保持天水治理监督局（天水水土保持科学试验站）” 邮箱：hwtsywk@163.com 电话：18709464263", "ds_from_station": null, "organization_id": "49b5ee01-70c1-4c22-8937-1f94d7fcabe2", "ds_serv_man": "敏玉芳", "ds_serv_phone": "\t0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2022-08-16 11:13:48", "last_updated": "2023-05-16 17:35:37", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWTSZhan.2020.56", "license": null, "i18n": { "en": { "title": "Runoff and sediment observation data set of qiaozigou drainage station in the third sub region of Loess Hilly and gully region from 2001 to 2010", "ds_format": "", "ds_source": " <p>Manual fixed point and fixed time observation</p>\n <p>According to the regulations of \"soil and water conservation test specification\" (sd239) and \"soil and water conservation test specification\" (sl419), the data are observed, sorted and compiled by professional and technical personnel. Observation data shall be measured, calculated, sorted and analyzed in accordance with the requirements of \"four follow-up\". Errors and unreasonable records of observation shall be handled and corrected in time, and remarks shall be made. In the process of data compilation and input, four levels of manual verification, such as tabulation, primary proofreading, re proofreading and auditing, are carried out in strict accordance with relevant observation and compilation specifications and in accordance with the process of first proofreading, second proofreading, review and review, so as to ensure the quality of data results. </p>\n <p>This data set is the runoff and sediment observation data of qiaozigou drainage station in the third sub region of Loess Hilly and gully region from 2001 to 2010. Qiaozigou watershed is a small watershed for parallel comparative observation of governance and non governance, qiaozidonggou watershed is a harness watershed, and qiaozixigou watershed is a non governance watershed. For runoff observation, the buoy method is used to measure the flow velocity, and the velocity area method is used to calculate the discharge; the sediment sampling and flow measurement are conducted simultaneously, and the sampling times are the same as the flow measurement times. The sediment samples are taken by the water side one point method, and the sediment concentration is measured by the displacement method. This data set includes the measured discharge result table, flood hydrological elements extraction table, successive flood test result table, daily average discharge table, daily average sediment concentration table and daily average suspended sediment transport rate table. </p>\n <p>Flow observation: the flow measuring structures of qiaozidonggou and qiaozixigou runoff stations are triangular wide crested weir and trapezoidal wide crested weir respectively. When there is little water, the flow is measured by the volume method with the connecting tube, and the flow is calculated by the buoy method with the buoy coefficient of 0.85. The flood peak and valley can be observed twice a day. Sediment concentration observation: the method of one point at the water edge is used to take sediment samples, and the sampling times are the same as the current measurement times. Sand samples were treated by displacement method. </p>\n