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Modeling Megacity Drinking Water Security under a DSS Framework in a Tidal River at the North Pearl River Delta, China
Author(s) -
Xiao Dacheng,
Jia Haifeng,
Wang Zheng
Publication year - 2015
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/1752-1688.12312
Subject(s) - environmental science , tidal river , water security , water quality , hydrology (agriculture) , decision support system , pollutant , delta , water resource management , environmental monitoring , environmental engineering , water resources , estuary , computer science , oceanography , geology , engineering , ecology , chemistry , geotechnical engineering , organic chemistry , artificial intelligence , biology , aerospace engineering
A modeling study was undertaken under a decision support system ( DSS ) for drinking water security in the Foshan section of the Beijiang River, a typical tidal river in the North Pearl River Delta. The DSS included a database layer, application support layer, and an application layer. As an integral part of the DSS application support layer, an integrated modeling system was developed to simulate hydrodynamics. The balance of dissolved oxygen and toxicants was based on an environmental fluid dynamics code and a water quality analysis simulation program ( WASP ) modeling framework. Model calibration and validation was undertaken using monitoring data in normal hydrological conditions. Four scenarios for the environmental management of water, including current water temp‐spatial feature analysis, control of pollution sources, and emergency response, were designed and analyzed in the DSS . The results indicated that the tide downstream has a distinct influence on hydrodynamics and pollutant diffusion, and the DSS could be used to design effective schemes to reduce pollutant discharges and provide emergency responses for ensuring drinking water security.