Upwelling over the eastern Arabian Sea

Upwellingis a vital oceanographic phenomena determining the biological productivity of the coastal oceanic provinces in a greater extent. The annual pelagic fisheries of coastal rim countries, adjacent to the eastern boundary of the Ocean, over the trade windzone are greatly dependent on upwelling. Over the North India Ocean (NIO), west coast of India, adjacent to the eastern Arabian Sea is well known for its seasonal occurrence of upwellingand downwellingannually. Over the past, several authors have studied upwellingalong the west coast of India (Banse 1959, 1968; Sharma 1978; Johannessen et al., 1987;