Estimation of Horizontal Diffusivity on East Coast of Peninsular India

Dye diffusion study to obtain the horizontal diffusivity is often carried now a day. Data obtained by Indomer coastal hydraulics by conducting dye tracing experiments at several parts of coastal India, were used and have been analyzed to estimate horizontal mixing coefficients. The data of these studies are used to find out the dispersion coefficients and the oceanic diffusivity is reviewed. Analysis of the data from the 3 sites which had the most complete data sets showed that the horizontal dispersion coefficient ranged from 0·443×10 6 to 6.5×10 6 cm 2 /sec. The estimated mixing coefficients are compared with those values obtained by earlier studies Keyword- Dye, Rhoda mine-B, Diffusion, Horizontal mixing coefficient, Coastal Waters