| An attempt is made to study the processes that control the pollutants exchange between coastal and open non tidal Bay on the example of the Bay of Bengal. The pollutants exchange was vigorous under the influence of wind and density gradient (buoyancy). This is further controlled by coastal configuration (meandering intricate coast , plain coast, archipelagos etc.) and Bay floor topography. The key processes controlling the exchange of pollutants are the instability of river plume influx forming eddies and isolated water masses, water jets, upwelling and downwelling etc.,. In addition to the above ,the following processes are also responsible in controlling pollutants exchange:(i) Bay circulation driven by density gradients (ii) Stirring by tidal and wind stresses(iii) Straining of the density field by tidal shearThe interaction of these processes is examined in two controlling water column structuresviz., open Bay and coastal Bay.An international programme is planned for joint study of interaction and fluxes between coastal area and open Bay. |
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