Detection of Underwater Laver Cultivation Fields by Synthetic Aperture Radar : Reappraisal

Abstract

Cultivation nets can thus be extracted from amplitude data, and the measurement accuracy can be improved using polarimetric entropy since the entropy is high in the net areas of which the images are contaminated with random system noise while the entropy is low in the surrounding sea dominated by surface scattering only. The theory was supported by the ALOS-PALSAR data of the Tokyo Bay under moderate wind speeds, where the currents are expected to be not very strong. In the present paper, we report the preliminary results of further study of extracting laver cultivation fields in the west coasts of Korea under different metrological conditions using ALOS-PALSAR.ile the entropy is low in the surrounding sea dominated by surface scattering only. The theory was supported by the ALOS-PALSAR data of the Tokyo Bay under moderate wind speeds, where the currents are expected to be not very strong. In the present paper, we report the preliminary results of further study of extracting laver cultivation fields in the west coasts of Korea under different metrological conditions using ALOS-PALSAR.