Ocean biogeochemistry and atmospheric composition: Significance of the Arabian Sea

The Arabian Sea is an important site of biogeochemical ocean-atmosphere tra nsfers, which play a crucial role in regulating the atmospheric chemical co mposition and the earth's climate. Widespread denitrification resulting fro m an intense oxygen-deficiency at mid-depths in this region modulates ocean ic Combined nitrogen inventory and consequently biological productivity. Du e to a delicate biogeochemical balance the Arabian Sea is expected to be am ong the first to react to potential anthropogenic perturbations.