Figure 7 presents the comparison between the
model results and field measurements of the DO
distribution from the slackwater survey of July 20,
2004 during the low flow condition. It shows the
simulated results of the daily average DO concentration
at the surface and bottom layers.
The DO was
measured along the central channel from a boat with a
DO sensor. The freshwater discharge and tidal range
were 6.05 m3/s and 2.37 m, respectively, on July 20,
2004.
The DO concentration measurement stations
are located at the Huajiang Bridge, Huazhong Bridge,
Zhongzheng Bridge, Fuhe Bridge, and Xinlang
Bridge (shown in Fig. 1)