Mixing in Visakhapatnam harbour and nutrient inputs to the nearshore waters, east coast of India

V.S. RamaRaju, V.V. Sarma, G.R.K. Raju, V.S. Rao


The flushing time (t) and replacement time (T) are computed for different seasons to understand mixing in Visakhapatnam harbour. Replacement times are higher than the flushing times indicating that the transverse mixing in the tidal flow in the Visakhapatnam harbour probably occurs relatively slow. The distribution curves for saline water fraction and nonconservative nutrient (phosphate) concentration in different seasons are also presented. The nutrient inputs from the Visakhapatnam harbour to nearshore waters are highest during southwest monsoon and lowest in post monsoon season


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