人民长江2016，Vol.47Issue(1)：27-30,4.DOI:10.16232/j.cnki.1001-4179.2016.01.006
基于ADCP实时指标流速的感潮段断面流量计算
Study on sectional flow calculation in tidal reach by ADCP real-time index velocity
韦立新 1蒋建平 1曹贯中1
作者信息
- 1. 长江水利委员会 长江下游水文水资源勘测局,江苏 南京210011
- 折叠
摘要
Abstract
The stage-discharge relation curve of the tidal reach of Yangtze River could not be determined directly. The tradi-tional method is insufficient as its monitoring frequency is too low to calculate the discharge, so an on-line flow measurement system of ADCP is established to solve the above problems. A multiple-element linear regression model between the ADCP real-time index velocities and the mean velocity at a cross-section is built up and solved, so the regression coefficients are ob-tained. According to the correspondent data at Nanjing hydrologic experiment station from November, 2010 to December, 2011, the regression coefficients of the index velocities were obtained through the above method and the discharge was calculated by combining with the water level and the river bed elevations. The comparison with the monitoring discharge shows that the presen-ted model has a better fitting effect and higher computational accuracy, which could be widely applied to the real-time telemetry and processing of the discharge.关键词
感潮河段/断面平均流速/指标流速/ADCP在线测流系统/长江下游Key words
tidal river/mean velocity at a cross-section/index velocity/on-line flow measurement system of ADCP/lower Yangtze River分类
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韦立新,蒋建平,曹贯中..基于ADCP实时指标流速的感潮段断面流量计算[J].人民长江,2016,47(1):27-30,4.
