CSTR:11738.11.ncdc.HWXFZhan.2020.82
10.12072/ncdc.HWXFZhan.db0003.2020
<p>This data set is the runoff and sediment observation data of runoff station in yanwachuan basin from 2011 to 2018. Yanwachuan basin is located in Xifeng district and Ningxian County of Qingyang City, Gansu Province. It is a tributary of Malian River on the right bank of Jinghe River Basin. It is a typical loess plateau gully region. As an observation station of soil and water conservation benefits in medium-sized watershed, the experimental observation section of runoff station is a large parabolic weir, and the observation mode is manual observation. The main observation indexes are daily average discharge, daily average sediment concentration, daily average sediment transport rate, extraction of flood hydrological elements and successive flood test results. </p>
<p>Manual timing observation
<p>(1) Discharge calculation: the discharge is calculated from the observed water level, and the calculation formula is q = 20.89h?, Q: discharge, unit: m3 / S; H: water level, unit: M.
(2) Calculation of sediment concentration: the formula P = WS / V * 1000 is used to calculate the sediment concentration, P: measured sediment concentration, unit: kg / M 3; V: water sample volume, unit: cm 3; WS: dry sediment weight in water sample, unit: G.
<p>In the process of compiling and inputting observation data, there are four levels of manual verification, namely tabulation, preliminary calibration, re calibration and audit, to ensure the data quality. </p>
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
