本数据集为2024年砚瓦川流域径流站径流泥沙观测数据。砚瓦川流域地处甘肃省庆阳市西峰区、宁县境内，系泾河流域马莲河右岸支流，是典型的黄土高塬沟壑区。作为中型流域的水土保持综合治理效益观测站，径流站的试验观测断面为大型抛物线型量水堰，观测方式为人工观测。主要观测指标为逐日平均流量、逐日平均含沙量、逐日平均输沙率、洪水水文要素摘录、逐次洪水测验成果。
", "ds_source": "人工定时观测
", "ds_process_way": "（1）流量计算：用观测水位推算流量，计算公式为Q=20.89H²，Q:流量，单位：m³/s;H:水位，单位m。\n
\n（2）含沙量计算：用公式p=ws/v*1000计算含沙量，p：实测含沙量，单位：kg/m³； v：水样容积，单位：cm³；ws：水样中干沙重，单位g。
", "ds_quality": "观测数据整编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": "2024-01-01 00:00:00", "ds_acq_end_time": "2024-12-31 00:00:00", "ds_acq_place": "甘肃省庆阳市宁县砚瓦川流域", "ds_acq_lon_east": 107.62555555555555, "ds_acq_lat_south": 35.50472222222222, "ds_acq_lon_west": 107.91666666666667, "ds_acq_lat_north": 35.73722222222222, "ds_acq_alt_low": 980.0, "ds_acq_alt_high": 1340.0, "ds_share_type": "apply-access", "ds_total_size": 72856, "ds_files_count": 6, "ds_format": "excel表格", "ds_space_res": null, "ds_time_res": "年、月、日、次", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "e9723d1d-ac44-4cee-8db7-d4b06f00bebe.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "8f345532-a01e-49ca-a880-641bc176ede9", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2025-11-27 15:47:38", "last_updated": "2025-11-27 15:47:38", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.HWXFZHAN.DB7018.2025", "i18n": { "en": { "title": "2024 Runoff and Sediment Observation Dataset of Yanwachuan River Basin in Loess Plateau Gully Region", "ds_format": "", "ds_source": "Manually timed observations
", "ds_quality": "Observations are compiled and entered through four levels of manual checking, namely, tabulation, initial checking, rechecking, and auditing, to ensure the quality of the data.
", "ds_ref_way": "", "ds_abstract": "This dataset is the observation data of runoff and sediment at the Yanwachuan River Basin runoff station from 2021 to 2022. The Yanwachuan River Basin is located in Xifeng District and Ningxian County, Qingyang City, Gansu Province. It is a right bank tributary of the Malian River in the Jing River Basin and a typical loess plateau gully area. As a comprehensive observation station for soil and water conservation benefits in medium-sized watersheds, the experimental observation section of the runoff station is a large parabolic water measuring weir, and the observation method is manual observation. The main observation indicators are daily average flow rate, daily average sediment concentration, daily average sediment transport rate, excerpts of flood hydrological elements, and results of successive flood tests.
", "ds_time_res": "年、月、日、次", "ds_acq_place": "Yanwachuan River Basin, Ning County, Qingyang City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "(1) Flow calculation: the observed water level is used to deduce the flow, the formula is Q=20.89H², Q: flow, unit: m³/s; H: water level, unit m.\n
\n(2)(2) Calculation of sand content: Calculate the sand content using the formula p=ws/v*1000, p: measured sand content, unit: kg/m³; v: volume of water samples, unit: cm³; ws: weight of dry sand in water samples, unit g.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "平均输沙率", "侵蚀模数", "径流模数", "径流深", "平均流量", "平均含沙量" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "庆阳", "宁县", "砚瓦川", "甘肃省" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "黄河水利委员会西峰水土保持科学试验站", "email": "18526328@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_managers": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "category": "水土保持" }