@Article{KuxSanAhePiePar:1998:EvRaLa,
               author = "Kux, Hermann Johann Heinrich and Santos, Jo{\~a}o Roberto dos and 
                         Ahern, Frank J. and Pietsch, R. W. and Pardi Lacruz, Maria 
                         Silvia",
          affiliation = "Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de 
                         Sensoriamento Remoto (INPE, DSR)",
                title = "Evaluation of Radarsat for land use and land cover in the 
                         Southwestern brazilian Amazon State of acre",
              journal = "Canadian Journal of Remote Sensing",
                 year = "1998",
               volume = "24",
               number = "4",
                pages = "350--359",
                month = "Dec.",
             keywords = "ESTUDOS INTEGRADOS DO MEIO AMBIENTE, ESTUDOS INTEGRADOS DO MEIO 
                         AMBIENTE, Acre (Estado), Radarsat, imagens de radar, calibracao, 
                         mapeador tematico (Landsat), imagens Landsat, desmatamento, 
                         desflorestamento, uso da terra.",
             abstract = "In order tofacilitate the incorporation of RADARSAT data into 
                         on-going programs for monitoring land use and land cover changes 
                         in the Brazilian portion of the Amazon basin, a rapid assessment 
                         of the visibility and detectability of features of interest was 
                         carried out and on the dynamics of change of thesefeatures with 
                         time. RADARSAT images were acquired for five dates in 1996: one in 
                         April, one in May and three in October These have been analyzed 
                         qualitatively and quantitatively,in conjunction with aerial 
                         photographs. Field trips were made concomitantly with both first 
                         and second series of RADARSAT overpasses; a Landsat - TM image was 
                         obtained from June 14, 1996. The most significant findings were: 
                         Visual interpretation of Standard Mode RADARSAT images could be 
                         used to detect urban areas, streams, and the general pattern of 
                         deforestation resultingfrom human settlement on all five images. 
                         The contrast between deforested areas and the primary forest was 
                         variable, being the greatest on an afternoon overpass at the end 
                         of the dry season, when no rain was recorded in the previous 24 
                         hours. Compared to the undisturbed or minimally disturbed upland 
                         rainforest, anthropic areas were observed to exhibit much larger 
                         temporal variations in backscatter (up to 4 dB in the case of 
                         recently-burned forest); under the proper conditions of recent 
                         precipitation at the end of the dry season, RADARSAT imagery 
                         appears to be a very sensitive indicator of forests which have 
                         been recently burned. With C-HH radar the use of multitemporal 
                         data will increase the reliability of detecting and mapping 
                         deforestation; the ideal two date combination would be to obtain 
                         one image under very dry conditions and a second image following a 
                         recent rainfall.",
           copyholder = "SID/SCD",
                 issn = "1712-7971",
                label = "8455",
             language = "en",
           targetfile = "INPE 7133.pdf",
        urlaccessdate = "28 abr. 2024"
}