Variability of dissolved organic matter sources in the eastern Arabian Sea: impacts of physical and biological processes - Chari, N. V. H. K; Gupta, G. V. M.; Sherin, C. K.; Ramu, Ch. V.; Reddy, B. Bikram; Kumar, B. S. K. (Ocean Dynamics: Theoretical, Computational and Observational Oceanography, 2025)