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The biomass of the algal bloom of Sargassum polycystum along the lagoon shores of Funafuti Atoll (Tuvalu) was estimated in November 2014 using a multispectral spaceborne Pleiades image and concurrent field data. Field work established (1) the geographical limit of the distribution of the algae in the lagoon, (2) the different types of S. polycystum beds that developed in the lagoon, and (3) the range...
The ability of five satellite sensor bands (IKONOS band 4, Terra ASTER bands 3 and 4, and Landsat ETM+ bands 4 and 5) was examined to extract the waterline at coral reef coasts (Majuro Atoll, Marshall Islands) using different wavelength regions (near infrared [NIR] and shortwave infrared [SWIR]) and different spatial resolutions (4, 15, and 30 m). After performing georeferencing and normalization...
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