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Remote Sensing for Marine Ecosystem

Remote Sensing is a great tool for studying various environmental phenomena. Data from AWiFS, MODIS and other ocean color monitoring satellites is a great asset for scientists for monitoring the health of the marine environment. Here Iam showing an image of Chlorophyll-a (Chl-a) concentration in Arabian sea and Bay of Bengal on January 3rd 2020. On this particular day, the Chl-a concentration varied from 0.25 to 0.65 mg/m3 with the areas near the coast showing higher concentrations of Chl-a content compared to the deeper sections of the seas.

Out of curiosity, I analyzed, the temporal change in Chl-a concentration near the coast of Mumbai city from 2011 to 2019 and the results are shown in the graph attached to this post. From the graphs, the monthly sum of the Chl-a concentration in the marine waters around the city shows an increasing trend. This could be because of an increase in water temperatures or/and increase in incoming nutrient load from the city.

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