@InProceedings{PereiraNegCurPabSou:2014:AnBaSi,
               author = "Pereira, Luciana de Oliveira and Negri, Rog{\'e}rio Galante and 
                         Curtarelli, Marcelo Pedroso and Pab{\'o}n, Rosa Elvira Correia 
                         and Souza Filho, Carlos Roberto de",
          affiliation = "University of Campinas – UNICAMP, Campinas - Brazil and Sao Paulo 
                         State University – UNESP, S{\~a}o Jos{\'e} dos Campos - Brazil 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         University of Campinas – UNICAMP, Campinas - Brazi and University 
                         of Campinas – UNICAMP, Campinas - Brazil",
                title = "Analysis of the backscatter signal in ALOS/PALSAR images collected 
                         over offshore environments and their use in oil film detection",
            booktitle = "Proceedings...",
                 year = "2014",
                pages = "1--4",
         organization = "International Geoscience and Remote Sensing Symposium, (IGARSS).",
            publisher = "IEEE",
             keywords = "Oil detection, Offshore, Bragg model, ALOS-PALSAR.",
             abstract = "The applicability of L-band Synthetic Aperture Radar (SAR) to 
                         identify and extract information from oil spills in marine 
                         environments has been studied. Although the extraction of this 
                         type of information is possible, is necessary to analyze the 
                         backscatter signal from the targets of interest, i.e., water and 
                         oil. This study aims to make a preliminary analysis of the 
                         adequacy of data collected by the Phased Array Lband SAR (PALSAR) 
                         sensor, on board the Advanced Land Observing Satellite (ALOS), to 
                         discriminate oil films yielded by seepages or spills in offshore 
                         environments of the Gulf of Mexico. The results show that the HH 
                         and VV polarizations have a signal decreasing trend when the 
                         incidence angle increases. This trend is clearly observed for 
                         incidence angles above 25o , which is related to the tilted Bragg 
                         scatter mode. Furthermore, were verified that the HH and VV 
                         polarizations acquired on PLR acquisition mode and HH acquired on 
                         FBD acquisition mode are suitable to discriminate oil spills films 
                         from oceanic water. The opposite was verified about HV 
                         polarization in both acquisition modes. Index TermsThe 
                         applicability of L-band Synthetic Aperture Radar (SAR) to identify 
                         and extract information from oil spills in marine environments has 
                         been studied. Although the extraction of this type of information 
                         is possible, is necessary to analyze the backscatter signal from 
                         the targets of interest, i.e., water and oil. This study aims to 
                         make a preliminary analysis of the adequacy of data collected by 
                         the Phased Array Lband SAR (PALSAR) sensor, on board the Advanced 
                         Land Observing Satellite (ALOS), to discriminate oil films yielded 
                         by seepages or spills in offshore environments of the Gulf of 
                         Mexico. The results show that the HH and VV polarizations have a 
                         signal decreasing trend when the incidence angle increases. This 
                         trend is clearly observed for incidence angles above 25o , which 
                         is related to the tilted Bragg scatter mode. Furthermore, were 
                         verified that the HH and VV polarizations acquired on PLR 
                         acquisition mode and HH acquired on FBD acquisition mode are 
                         suitable to discriminate oil spills films from oceanic water. The 
                         opposite was verified about HV polarization in both acquisition 
                         modes.",
  conference-location = "Qu{\'e}bec",
                 isbn = "9781479957750",
                label = "lattes: 7417849872779783 3 PereiraNegCurPabSou:2014:AnBaSi",
             language = "en",
           targetfile = "0000886luciana.pdf",
        urlaccessdate = "27 abr. 2024"
}