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Modelling and Analysis of Hydrodynamics and Water Quality for Rivers in the Northern Cold Region of China
Tang G. L.; Zhu, Y. Q.; Wu, G. Z.; Li, J.; Li, Z. L.; Sun, J. L.
Source PublicationInternational Journal of Environmental Research and Public Health
2016
Volume13
Issue4
Keywordcold region hydrodynamic water quality model numerical simulation advection transport algorithm dynamics estuary bod
AbstractIn this study, the Mudan River, which is the most typical river in the northern cold region of China was selected as the research object; Environmental Fluid Dynamics Code (EFDC) was adopted to construct a new two-dimensional water quality model for the urban sections of the Mudan River, and concentrations of CODCr and NH3N during ice-covered and open-water periods were simulated and analyzed. Results indicated that roughness coefficient and comprehensive pollutant decay rate were significantly different in those periods. To be specific, the roughness coefficient in the ice-covered period was larger than that of the open-water period, while the decay rate within the former period was smaller than that in the latter. In addition, according to the analysis of the simulated results, the main reasons for the decay rate reduction during the ice-covered period are temperature drop, upstream inflow decrease and ice layer cover; among them, ice sheet is the major contributor of roughness increase. These aspects were discussed in more detail in this work. The model could be generalized to hydrodynamic water quality process simulation researches on rivers in other cold regions as well.
Indexed BySCI
Language英语
ISSN1660-4601
DOI10.3390/ijerph13040408
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/43226
Collection历年回溯文献
Recommended Citation
GB/T 7714
Tang G. L.,Zhu, Y. Q.,Wu, G. Z.,et al. Modelling and Analysis of Hydrodynamics and Water Quality for Rivers in the Northern Cold Region of China. 2016.
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