基于经验模型的长江口南支上段压咸临界流量

严鑫,孙昭华,谢翠松,夏军强

Estimation of critical discharge for saltwater intrusion in the upper south branch of the Yangtze River Estuary using empirical models

YAN Xin,SUN Zhaohua,XIE Cuisong,XIA Junqiang

表2 三峡水库蓄水前后日均流量频率特征

Tab. 2 The frequency of daily mean discharge before and after the TGP was put into operation

时段 小于某级流量的累积频率(%) < 25000 m3/s < 15000 m3/s < 12000 m3/s < 10000 m3/s 1950-2002 45.71 25.71 16.9 10.06 2003-2007 55.83 24.85 14.29 2.74 2008-2015 50.33 21.59 7.73 0.1