长江中游河段水文测站浮标系数的分析率定

Calibration Analysis of Buoy Coefficient at Hydrological Stations in the Middle Reaches of the Yangtze River

在天然河流出现特殊水情,采用流速仪、ADCP等方法流量测验困难时,浮标法测流是水文测站中的一种常见应急测验方法。这种方法对提高测站的测洪应急应变能力和流量测验精度,具有一定的现实意义。以长江中游河段螺山站为例,选取该站多年实测浮标流量和流速仪流量资料分析率定出长江中游河段水文测站的浮标系数。

When special water regimen occurs in natural rivers and it is difficult to test the rate of flow by means of current meter,ADCP and so on,buoy method is commonly used to test rate of flow in emergency in hydrological stations.This kind of method has certain practical significance to improvement of the station＇s flood emergency response capacity and flow test measurement pre-cision.Based on the Luoshan Station in the middle reaches of the Yangtze River,by choosing the station＇s measured buoy flow and current meter flow data,buoy coefficient at hydrological sta-tions in the middle reaches of the Yangtze River is analyzed and calibrated.