This dataset is the runoff and sediment observation data of the Wangmaogou watershed runoff station in 2022. Through the observation of water level at the runoff station measurement section, sediment sampling, and calculation of runoff and sediment yield during runoff production. The data includes the flow measurement cross-section map of Wangmaogou runoff station, excerpts of flood hydrological elements, results of successive flood tests, daily average flow rate, daily average sediment concentration, and daily average sediment transport rate. The situation of runoff stations can be found in the "2022 Situation Description of Wangmaogou Basin".
| collect time | 2022/01/01 - 2022/12/31 |
|---|---|
| collect place | Wangmaogou watershed, Suide County, Yulin City, Shaanxi Province |
| altitude | 2.0m - |
| data size | 300.2 KiB |
| Data time resolution | branch、day、second |
| Coordinate system | WGS84 |
Manual timing observation
1. The water level observation method of runoff station is: wangmaogou runoff station uses the water gauge on the side wall of the building to measure the water level. In the non flood season, the water level is observed once a day at 8:00 and 20:00 in case of rainfall; the observation is conducted four times at 2:00, 8:00, 14:00 and 20:00 when the daily water level changes greatly or has a slow peak and valley. When the water level changes violently in flood season, the observation shall be made in multiples of 6 minutes.
2.The flow measurement method of wangmaozhuang runoff station: the calibrated natural section observation by manual arrangement is adopted, and the calibrated flow formula is used for flow calculation.
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.
Manual observation shall be conducted by professional technicians; during data entry, four levels of manual verification shall be conducted, including tabulation, primary calibration, re calibration and audit, so as to ensure data quality.
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
| # | title | file size |
|---|---|---|
| 1 | 2022年王茂沟径流泥沙资料.xlsx | 55.2 KiB |
| 2 | 小流域站网布设图.pdf | 134.2 KiB |
| 3 | 王茂庄断面图.pdf | 75.4 KiB |
| 4 | 王茂沟流域2022年情况说明(径流泥沙).docx | 35.4 KiB |
Runoff Sediment concentration Sediment transport rate Runoff coefficient Runoff modulus Soil loss water level Erosion modulus Runoff depth flow
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©Copyright 2005-. Northwest Institute of Eco-Environment and Resources, CAS.
Donggang West Road 320, Lanzhou, Gansu, China (730000)

