Evaluation of ENVISAT MERIS and Aqua MODIS satellite images for monitoring water quality parameters in Thermaikos gulf (Greece)

TL;DRAbstract

During the last decades, remote sensing has been accepted as a useful tool for monitoring the marine and coastal environment. The aim of this work was to evaluate the use of satellite images for creating a time series of water quality parameters in Thermaikos Gulf (Greece). The specific objectives included the evaluation of the spatial and temporal distributions of the produced maps, and the evaluation of the accuracy of the estimated parameters. Using ENVISAT MERIS and Aqua MODIS satellite images, a time series of two hydrological years was put together for chlorophyll- a , total suspended matter and sea surface temperature. The results show that the satellite images covered the study site with some data gaps due to cloud coverage and orbit shift of the ENVISAT satellite. The produced maps portrayed the spatial distribution of Chl- α and TSM, in specific the maxima were observed on the plumes of the three major rivers and the minima in the open sea. The time series produced by the tem

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