Calibration of Midstream Buoy Coefficient Based on Flow Measurement

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Ling, Zhen^1^2 ; Xu, Shan^3 ; Li, Jie^2 ; Xiong, Yuan^1 ; Huang, Kuanjin^1

College of Urban and Rural Construction and Engineering Management, Kunming University, Kunming, Yunnan

650214, China^1

College of Tourism and Geographic Sciences, Yunnan Normal University, Kunming, Yunnan

650050, China^2

Kunming University, Dianchi (Lake) Cooperation Research Center for Pollution Prevention and Control, Yunnan

650214, China^3

关键词: Average values;    Early warning;    Emergency monitoring;    Flood prevention;    Flow measurement methods;    Imaginary flow;    Maximum variations;    Natural river;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032048/pdf
DOI  :  10.1088/1755-1315/237/3/032048

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The midstream float method is a standby flow measurement method adopted by hydrological stations when the river floods are rising and falling sharply and the flow meter is difficult to measure or special water regime occurs. In this paper, based on the Years of measured flow data of Xiaolongtan Hydrological Station of Nanpanjiang River, the Midstream Buoy Coefficient in the natural river course of Nanpanjiang River Basin is calculated and analyzed. The average buoy coefficient is calculated by measuring the actual flow divided by the imaginary flow and the average value is 0.76 and the maximum variation is less than 14%. This method can solve the actual needs of high flow measurement. The results can provide technical basis for sudden flood, special water regime, emergency monitoring, flood prevention and early warning. The flow measurement under the condition of insufficient testing personnel.