Abstract
Physical and chemical characteristics of the Hooghly estuary during winter (December 1997–January 1998), summer (May 1998) and post-monsoon (November 1998) seasons have been studied. Salinity varied spatially and temporally and seasonally during ebb and flood tide conditions. Water temperature showed a difference of 10‡C in winter to summer. Temperature did not vary much vertically as it is a well-mixed estuary. Strong currents exceeding 100 cm S-1 were observed during peak ebb and flood tide conditions irrespective of the season. Longitudinal eddy diffusion coefficient (K x ) was estimated as 757m S-1 and 811m2 S-1 during summer and post-monsoon seasons, respectively. The vertical eddy diffusion coefficient (εv) was estimated as 0.0337 m2 S-1 during post-monsoon season. The salinity and current observations are compared with those obtained from models reported earlier. Values of pH, Dissolved Oxygen and Biological Oxygen Demand are within the threshold limits of the estuarine environment. Nutrients show seasonal variation in the estuarine environment. High values (160-2686 mg l-1) of total suspended matter were noticed both at surface and bottom in the study region showing the impact of fresh water and sediment transportation.
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References
Biswas A N 1985 Geohydro-morphometry of Hooghly estuary;J. Inst. Eng. (India)66 6–73.
Chatterjee A K 1978 Two dimensional mathematical model of a tidal estuary; Proc. 47th Research session of CBIP, Hubli Dharwar, India.
Chatterjee A K 1983 Two dimensional non linear vertically
Khan R A, 1995 The pollution problem of Hooghly estuarine system;Estuarine Ecosystem Series, Zoological survey of India, part 2, 497–542.
Mc Dowell D M and Prandle D 1972 Mathematical model for river Hooghly;J. Waterways and Harbour Division ASCE 98 225–242.
Qasim S Z 2003Indian Estuaries (New Delhi: Allied Publishers).
Santra S C and Pal U C 1989 Phytoplankton of Bhagirathi-Hooghly estuary. An illustrative account.Indian Biology 29 1–27
Schwind J J 1980Geophysical Fluid Dynamics for Oceanography (England: Prentice Hall Inc.)
Shetye S R and Murthy C S 1987 Seasonal variation of the salinity in the Zuari Estuary;Proc. Ind. Acad. Sci. (Earth Planet. Sci.) 96 249–257.
Sinha P C, Rao Y R, Dube S K and Rao A D 1995 Modeling of circulation and salinity on Hooghly estuary;Mar. Geodesy. 19 197–213.
Sinha P C, Rao Y R, Dube S K and Rao A D 1996 Numerical Investigation of Tide Surge interaction in Hooghly estuary, India;Mar. Geodesy. 19 235–255.
Sinha PC, Rao Y R, Dube S K and Murty C R 1998 A numerical model for residual circulation and pollutant transport in a tidal estuary (Hooghly) of NE Coast of India;Ind. J. Mar. Sci. 27 129–137.
Sinha P C, Rao Y R, Dube S K, Murty C R and Chatterjee A K 1999 Application of two turbulence closure schemes in the modeling of Tidal currents and salinity in the Hooghly estuary;Estuarine. -Coastal Shelf Sci. 48 649–663.
Sinha P C, Guliani P, Jena G K, Rao A D, Dube S K, Chatterjee A K and Murty T 2004 A breadth averaged numerical model for suspended sediment transport in Hooghly estuary, East Coast of India;Natural Hazards 32 239–255.
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Sadhuram, Y., Sarma, V.V., Murthy, T.V.R. et al. Seasonal variability of physico-chemical characteristics of the Haldia channel of Hooghly estuary, India. J Earth Syst Sci 114, 37–49 (2005). https://doi.org/10.1007/BF02702007
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DOI: https://doi.org/10.1007/BF02702007