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IJMS Vol.39(2) [June 2010] >


Title: Suspended sediment dynamics in Krishna estuary, east coast of India
Authors: Kumari, V Rajani
Rao, I Mrutyunjaya
Keywords: TSM
, turbidity
Krishna estuary
Bay of Bengal
Issue Date: Jun-2010
Publisher: CSIR
Abstract: Distribution and flux of suspended sediments and turbidity in the Krishna estuary were examined. TSM showed an increasing trend from head to mouth. A vertical gradient in TSM, increasing from surface to bottom prevails at all stations in monsoon. Distribution of TSM in tidal cycle shows relatively high load during high tide indicating the dominance of saline water. Turbidity exhibited relatively high values in monsoon and low values in premonsoon and postmonsoon. Horizontal variation of turbidity closely resembles that of TSM with an increasing trend from head (st. 1) to mouth (st. 3) of the estuary. Turbidity maximum, noticed with different intensities in all seasons. This was due to gravitational residual circulation and settling and resuspension processes of the fine sediment. The spatial distribution of turbidity resembles that of TSM in all seasons. Minor deviations observed in the distribution of turbidity from that of TSM were attributed to the differences in nature, particle size and shape of TSM.
Page(s): 248-256
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Source:IJMS Vol.39(2) [June 2010]

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