Effect of sugarcane-planting row directions on ALOS/PALSAR satellite images

Autor(es)

Araujo Picoli, Michelle Cristina ^[1] ; Camargo Lamparelli, Rubens Augusto ^[2] ; Sano, Edson Eyji ^[3] ; Batista de Mello, Jefferson Rodrigo ^[4] ; Rocha, Jansle Vieira ^[5]

Afiliação do(s) autor(es)

^[1] CTBE CNPEM, Brazilian Bioethanol Sci & Technol Lab, BR-13083970 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Interdisciplinary Ctr Energy Planning, BR-13083896 Campinas, SP - Brazil

^[3] Embrapa Cerrados, Brazilian Agr Res Org, Cerrados Agr Res Ctr, BR-73301970 Planaltina - Brazil

^[4] Dept Geotechnol, BR-13405970 Piracicaba, SP - Brazil

^[5] Univ Estadual Campinas, UNICAMP FEAGRI, Dept Planning & Sustainable Rural Dev, BR-13083875 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GIScience & Remote Sensing; v. 50, n. 3, p. 349-357, JUN 1 2013.
• Citações Web of Science: 4

Resumo

This study investigated the effects of sugarcane-planting row directions in the HH- and VV-polarized, ALOS/PALSAR imageries. Twenty sugarcane fields from SAo Paulo State, Brazil, were classified into rows parallel and rows perpendicular to the range direction of the satellite. Backscattering coefficients (sigma degrees) from 10 images were analyzed. For HH polarization, sigma degrees values from fields with perpendicular rows were higher than those from parallel rows (approximate to 1.2 dB). For HV polarization, there was no statistically significant difference. Therefore, HV-polarized PALSAR images are preferable for producing maps of cultivated areas with sugarcane or to discriminate sugarcane varieties, among other applications. (AU)

• Processo FAPESP: 08/06043-5 - Uso de imagens SAR multi-polarizadas e ópticas, do satélite ALOS, na caracterização espectral da cultura da cana-de-açúcar e sua relação com a produtividade
• Beneficiário: Rubens Augusto Camargo Lamparelli
• Modalidade de apoio: Auxílio à Pesquisa - Regular