An in-depth analysis of the impact of environmental drivers on the variability of phytoplankton community in the Arabian Sea during 2010-2021.

This study examines the long-term changes in phytoplankton size classes (PSCs) in the Arabian Sea (AS) using the remote sensing reflectance () data collected over 12 years (2010-2021) from the Moderate Resolution Imaging Spectroradiometer (MODIS). The spectra were inverted to chlorophyll-a (Chl-a) concentrations using a non-linear optimisation method, which were then used to estimate the PSC using a region specific three-component model. The analysis is carried out for all four seasons, , winter (December-February), pre-monsoon (March-May), monsoon (June-September) and post-monsoon (October-November).