Landsat TM image texture and moisture variations of the soil surface under the rainforest of the Rondonia state, Brazil
A Landsat TM image, part of a rainforest located in the state of Rondonia, Brazil, was analysed using Fourier transform techniques in order to extract textural features. The lattice-like texture pattern recorded was then compared with the geological structural trends of the area, and measures of the soil surface moisture treated by geostatistical analysis. The consistency between the different sets of analysis suggests that the spatial distribution of moisture at the soil surface is related to the structure of the bedrock. The near infrared channel of the Landsat TM may be used to record trends in water content distributions at the soil surface under homogeneous forest canopies.
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