@InProceedings{SantosKuxParAhePit:1998:DyRaBa,
               author = "Santos, Joao Roberto dos Santos and Kux, Hermann Johann Heinrich 
                         and Pardi Lacruz, Maria Silvia and Ahern, Frank J. and Pitsch, R. 
                         W.",
                title = "Dynamics of Radarsat backscattering values related to primary and 
                         secondary forest biomass structure in SW Amazonia, Brazil",
            booktitle = "Proceedings...",
                 year = "1998",
                pages = "527--531",
         organization = "Isprs Eco Bp'98.",
             keywords = "VEGETACAO, AMAZONIA (REGIAOACRE (ESTADO), FLORESTAS, FLORESTA 
                         TROPICAL, RADARSAT, IMAGENS DE RADAR, MONITORAMENTO, MAPEADOR 
                         TEMATICO (LANDSAT), IMAGENS LANDSAT, SATELITES LANDSAT, RADAR DE 
                         ABERTURA SINTETICA, SAR.",
             abstract = "The principal objective of this study is to evaluate the relations 
                         among the Radarsat backscatter and biophysical parameters 
                         (biomass), of primary and secondary forest. Another objective is 
                         to analyze the usefulness of this SAR sensor system to 
                         discriminate among the land cover classes of the region 
                         surrounding Rio Branco (Acre State, Brazil). Two RADARSAT scenes 
                         at begin of dry and wet seasons were used. This dataset underwent 
                         the following pre-processing: reduction of speckle, scaling of 
                         data from 16 to 8 bits real integer, and extraction the 
                         backscattering values (linear unities). Afterwards these scenes 
                         were registered to a TM-Landsat image to improve the 
                         identification of the classes: primary forest with and without 
                         bamboo; initial, intermediate and advanced natural regrowth; 
                         pasture at distinct phenological conditions and burned areas. 
                         Ground control campaigns were performed to acquire dendrometric 
                         data (DBH and height of the arboreal individuals)in several plots 
                         of the primary and secondary forest. The biomass was estimated by 
                         the most adequate allometric equations for each vegetation type. 
                         Furthermore, diagrams of the biomass from primary and secondary 
                         forest are presented and discussed together with the seasonal 
                         backscatter signals. The multitemporal analysis of Radarsat data 
                         shows the behavior of the dynamics of other land cover from this 
                         area.",
  conference-location = "Budapest, Hungria",
      conference-year = "1-4 Sept. 1998",
                label = "8463",
         organisation = "ISPRS",
           targetfile = "INPE 7163.pdf",
        urlaccessdate = "12 maio 2024"
}