Water quality modeling for a tidal river network: A case study of the Suzhou River

Abstract

Combined with the basic characteristics of Suzhou plain river network, two modules are established, one of which is the hydrodynamic module using the water level node method involving gate operation, while the other is the water quality module based on the principle of WASP5 (water quality analysis simulation program5). These two modules were coupled and verified by the monitoring data of Suzhou River network. The results showed that calculation errors of NH þ 4 -N and DO for the model were in the ranges of -15%-13% and -18%-16%, respectively. Despite of the deviations between the monitoring data and simulation result, the calculation accuracy of the model conforms to the practical engineering requirement. Therefore, the proposed coupling model may be useful for water quality simulation and assessment for river network under tidal influences.

Connectivity Evaluation and Planning of a River-Lake System in East China Based on Graph Theory

“…On one hand, the natural sedimentation, block, and drought retard the flow and cause the water exchange ability to decline. On the other hand, because of the pursuit of high utilization rate of land in the urbanization construction process [3], many rivers were filled or truncated to provide more construction land, which artificially intensifies the disconnected situation of the stream network and causes drainage difficulty, water quality deterioration, poor ecological environment, and many types of water problems [4][5][6]. Hence, studies about the interconnection of stream systems in China's urbanization process are emerging.…”

Environmental and Water Resources Management: Problems and Solutions

“…A coupling model that is useful for water quality simulation and assessment of river networks under tidal influences is discussed in a paper by Feng et al (2011). They applied their model to the Suzhou River in China.…”