Active and passive microwave measurements for the characterization of soils and crops

Dans le cadre du projet EC ReSeDA, des campagnes avec capteurs de teledetection montes sur des avions et sur des helicopteres ont ete conduites pour le monitorage des processus du sol et de la vegetation sur une zone agricole dans le sud de la France. Cet article discute de la sensitivite des capteurs actifs (scatterometres) et passifs (radiometres) aux caracteristiques des sols couverts de vegetation, et compare leurs performances pour la classification des differentes cultures et la mesure de l'humidite du sol et de la biomasse vegetale. Les mesures radiometriques et scatterometriques effectuees dans les bandes C et X confirment les potentialites des capteurs a micro-ondes pour la detection des caracteristiques du sol et de la vegetation.

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