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Effect of bottom friction on tidal hydrodynamics along Gulf of Khambhat, India

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Title Effect of bottom friction on tidal hydrodynamics along Gulf of Khambhat, India
 
Creator KUMAR, SS
BALAJI, R
 
Subject WEST-COAST
PROPAGATION
TIDES
tidal constituents
bottom friction
Gulf of Khambhat
Telemac-2D
 
Description Tides play a vital role in coastal hydrodynamics, and it is important to understand their complex characteristics in the coastal areas of creeks, bays, estuaries and gulf. In this study, the spatial variation of heterogeneous friction coefficients and their influence on the variation of different tidal constituents (K1, M2, N2, O1, P1 and S2) along Gulf of Khambhat, west coast of India, were studied. A two-dimensional finite element-based numerical model was developed and zones of different friction coefficients were identified by comparing numerically estimated tidal levels and currents with that of measured and reported by earlier studies. Based on the comparisons, the gulf was divided into five zones of different bottom friction values. The numerical model, assigned with friction coefficients, was used to map the contours of selected tidal constituents. From the results, it was observed that two constituents, M2 and influence the hydrodynamics, significantly. The description of the numerical model, calibration, validation and results are presented in this paper. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
 
Date 2016-01-14T13:38:28Z
2016-01-14T13:38:28Z
2015
 
Type Article
 
Identifier ESTUARINE COASTAL AND SHELF SCIENCE, 154,129-136
0272-7714
1096-0015
http://dx.doi.org/10.1016/j.ecss.2015.01.012
http://dspace.library.iitb.ac.in/jspui/handle/100/17635
 
Language en