Spatio-temporal variability of remote sensing reflectance from MODIS imagery for water quality assessment: A case study of Northern Patagonia, Chile

The variability of phytoplankton dynamics is a crucial compone A key geophysical parameter that advances our understanding of tance , which can be used as a proxy for the concentrations o (Rrs) and other organic and inorganic particles. In this work, we us onboard the Aqua satellite (MODIS-Aqua) to study long-term trends (2003-2021) in remote sensing reflectance (Rrs) across the inner waters of the Chilean northern Patagonia. The Chilean northern discharges from continental glacial rivers loaded with terrigenou and its bio-optical properties. Our findings reveal that the optical c and the marine system in the Inner Sea of Chiloe<acute accent> leads to a high te patterns. These findings have significant implications for northern highlight the substantial changes in water quality ( Chla , turbidity (c) 2024 COSPAR. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/ by-nc-nd/4.0/). nt of coastal biogeochemical cycles at various spatial-temporal scales. phytoplankton dynamics in coastal zones is the remote sensing reflecf colored dissolved organic matter (CDOM), phytoplankton biomass, ed data from the Moderate Resolution Imaging Spectroradiometer Patagonia is a major fjord/channel system receiving large freshwater s materials. These discharges significantly alter the water chemistry omplexity arising from the interplay between major freshwater sources mporal variability of primarily linked to the seasonality in turbidity R rs , Patagonia's river discharge and turbidity to climate change. They also , etc), triggering shifts in biophysical patterns.