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A numerical model for residual circulation and pollutant transport in a tidal estuary (Hooghly) of NE coast of India

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Title A numerical model for residual circulation and pollutant transport in a tidal estuary (Hooghly) of NE coast of India
 
Creator Sinha, P.C.
Rao, Y.R.
Dube, S.K.
Murthy, C.R.
 
Description 129-137
To study pollutant dispersal in the estuary a non-linear vertically integrated numerical model has been applied to the Hooghly estuary along the east coast of India. The horizontal density gradient terms are included in a two-dimensional depth-averaged hydrodynamic model. Biochemical oxygen demand (BOD) was adopted as a tracer for water quality. The model uses a realistic tidal forcing, fresh water flow based on observations and climatic winds over the region of interest. The effects of wind and horizontal density gradients on the residual circulation are found to be significant. Pollutants discharged in the upper estuary do not affect the Haldia channel. The model predictions compare reasonably well with observed elevations and currents in the estuary. For verification of pollutant transport model, observational data is presently unavailable, however, the salinity distribution compares well with the observations.
 
Date 2016-10-18T11:17:44Z
2016-10-18T11:17:44Z
1998-03
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/35747
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.27(1) [March 1998]