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Relationship Between PALSAR Backscatter and Surface-Roughness Parameters From Iron Laterites in CarajÁs, Amazon Region

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4 Author(s)
de Queiroz da Silva, A. ; Nat. Inst. for Space Res., Sao Jose dos Campos, Brazil ; Paradella, W.R. ; Freitas, C.C. ; de Oliveira, C.G.

The objective of this investigation was to evaluate the influence of micro- and macrotopography on PALSAR fine-beam dual backscattering in the characterization of iron laterites in Carajas Province, Amazon Region. The moderate linear correlation between sigma0 and surface roughness indicated that, only for L-HH polarization, sigma0 was modulated by the morphology of the geological surfaces.

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Geoscience and Remote Sensing, IEEE Transactions on  (Volume:47 ,  Issue: 12 )