Since the end of May 2025, Albufera Lagoon has been undergoing a brownification event, a phenomenon characterized by a noticeable darkening of surface waters. This change, clearly captured by recent Sentinel-2 satellite imagery, shows elevated NDVI (Normalized Difference Vegetation Index) values, which are closely linked to increased chlorophyll concentrations in surface waters. The timing of this event aligns with a period of rising temperatures and prolonged lack of precipitation, raising concerns among environmental scientists and local stakeholders.


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