@InProceedings{PrudenteOldVieCatSan:2019:ReSAPo,
               author = "Prudente, Victor Hugo Rohden and Oldoni, Lucas Volochen and 
                         Vieira, Denis Corte and Cattani, Carlos Eduardo Vizzotto and 
                         Sanches, Ieda Del'Arco",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Universidade Estadual do Oeste do 
                         Paran{\'a} (UNIOESTE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Relationship between SAR/Sentinel-1 polarimetric and 
                         interferometric data with biophysical parameters of agricultural 
                         crops",
            booktitle = "Proceedings...",
                 year = "2019",
               editor = "Ray, S. S. and Navalgund, R. and Justice, C.",
                pages = "599--607",
         organization = "ISPRS-GEOGLAM-ISRS Joint International Workshop on Earth 
                         Observations for Agricultural Monitoring",
            publisher = "International Society for Photogrammetry and Remote Sensing",
             keywords = "Microwave, LAI, Height, soybean, wheat, coherence, backscatter, 
                         polarization.",
             abstract = "The use of SAR (Synthetic Aperture Radar) data in agricultural 
                         applications has not yet been adequately explored, due to the 
                         complexity of the processing required, the lower diversity and 
                         availability of SAR data, and the difficulty in interpreting this 
                         data. The interactions between microwave energy and vegetation are 
                         influenced by factors related to plant structure, dielectric 
                         properties of the canopy, planting density and line orientation, 
                         and the angle of incidence and polarization of the wave. These 
                         differences between the recorded phases are used in data analysis 
                         techniques such as polarimetry and interferometry. Thus, the 
                         objective of this research is to analyse the relationships between 
                         the biophysical attributes of two agricultural crops (soybean and 
                         wheat) and the polarimetric and interferometric parameters of the 
                         SAR/Sentinel-1 data. The backscatter coefficients sigma and gamma 
                         in the VV polarization have inversely direct relation with the 
                         height of the crops, that is, as cultures grow, the interaction of 
                         energy in this polarization increases and the return signal 
                         decreases. For the cross polarization VH, the behaviour is the 
                         opposite, the larger the canopy height, the greater the 
                         interaction of vertical polarization and the greater the return on 
                         horizontal polarization. The interferometric coherence had small 
                         values, characterising a temporal decorrelation between the image 
                         pairs, due the canopy development. This preliminary study serves 
                         as a basis for future research with SAR/Sentinel-1 data focused on 
                         crops.",
  conference-location = "New Delhi, India",
      conference-year = "18-20 Feb.",
                  doi = "10.5194/isprs-archives-XLII-3-W6-599-2019",
                  url = "http://dx.doi.org/10.5194/isprs-archives-XLII-3-W6-599-2019",
                 issn = "16821750",
             language = "en",
           targetfile = "prudente_relationship.pdf",
        urlaccessdate = "27 abr. 2024"
}