Heavy metals estimation in coastal areas using remote sensing, field sampling and classical and robust statistic
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AuthorCastillo López, Elena; Pereda García, Raúl; Luis Ruiz, Julio Manuel de; Pérez Aguirre, Rubén; Piña García, Felipe
Sediments are an important source of accumulation of toxic contaminants within the aquatic environment. Bioassays are a powerful tool for the study of sediments in relation to their toxicity, but they can be expensive. This article presents a methodology to estimate the main physical property of intertidal sediments in coastal zones: heavy metals concentration. This study, which was developed in the Bay of Santander (Spain), applies classical and robust statistic to CASI-2 hyperspectral images to estimate heavy metals presence and ecotoxicity (TOC). Simultaneous fieldwork (radiometric and chemical sampling) allowed an appropriate atmospheric correction to CASI-2 images.
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