摘要
为准确计算淀山湖水位,根据环淀山湖水文资料,分别采用算术平均法和加权平均法,计算了环湖13个断面的平均值,作为淀山湖平均水位;选择部分断面组合的水位平均值作为淀山湖代表站水位,并分析比较各个组合方案的离差程度,以确定最优方案。结合淀山湖实际情况和测站现状,选择2021年全年小时水位数据进行验证,结果表明:千灯浦、商榻、淀浦河西闸(外)3个站加权平均水位精度最高,水位数据权重分别为0.16,0.46和0.38。因此,建议将这3站的水位加权平均值作为淀山湖代表站水位值。
In order to accurately determine the water level of Dianshan Lake,on the basis of the hydrological synchronous survey data of Dianshan lake,we calculate the average value of 13 sections as the average water level of Dianshan Lake by arithmetic average method and weighted average method.Also,we selected the average water levels of some sections as the water level of the representative station,and compared the degree of each combination scheme to determine the optimal scheme.Then,we selected 2021 annual hourly water level data to verify the calculation results.The results showed that the weighted average water level accuracy of Qiandengpu Station,Shangta Station and Dianpuhexi gate(outside)Station were the highest,the water level data were 0.16,0.46 and 0.38 respectively.It is suggested to take the weighted average of the water level of the three stations as the representative water level of Dianshan Lake.
作者
程公德
CHENG Gongde(Hydrological Survey Team of Shanghai Qingpu District,Shanghai 200434,China)
出处
《水利水电快报》
2023年第6期76-79,共4页
Express Water Resources & Hydropower Information
关键词
平均水位
水位代表站
算术平均
加权平均
淀山湖
average water level
representative water level station
arithmetic mean
weighted average
Dianshan Lake
