Identification of musaceous crops (Musa sp.) in northern Costa Rica using rescaling of synthetic aperture radar (SAR) Sentinel 1A imagery.
DOI:
https://doi.org/10.21138/GF.791Resumo
Synthetic Aperture Radar (SAR) polarimetry is a remote sensing technique known for being applied to monitoring and surface and deforestation. Polarimetry aims to characterise land surface by analyzing the properties of the signal that is scattered when using different combinations of polarization of the transmitting and receiving antennas, defined as polarimetric channels. The use of vertical/vertical polarization proved to be efficient for estimating the extent of deforested areas and musaceous monocrops discrimination in northern Costa Rica. To that end, Sentinel-1 images from the European Space Agency have been used, with a calibration/workflow process and a subsequent rescaling that allowed to draw a clear distinction between forested areas and monocrops more effectively than radar vegetation index based on cross-polarization.
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