Fechar

@Article{PolizelRoss:2014:CaMoDe,
               author = "Polizel, Silvia Palotti and Rossetti, Dilce de F{\'a}tima",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Caracteriza{\c{c}}{\~a}o morfol{\'o}gica do delta do rio Doce 
                         (ES) com base em an{\'a}lise multissensor",
              journal = "Revista Brasileira de Geomorfologia",
                 year = "2014",
               volume = "15",
               number = "2",
                pages = "311--326",
             keywords = "mapeamento geomorfol{\'o}gico, delta do rio doce, sensoriamento 
                         remoto.",
             abstract = "A costa leste brasileira apresenta uma sucess{\~a}o de sistemas 
                         deltaicos, sendo o delta do rio Doce, localizado no Estado do 
                         Esp{\'{\i}}rito Santo, um dos mais expressivos. A 
                         prograda{\c{c}}{\~a}o principal deste delta, de geometria 
                         cuspidada t{\'{\i}}pica de deltas de onda, tem sido 
                         atribu{\'{\i}}da {\`a} queda do n{\'{\i}}vel do mar que se 
                         seguiu {\`a} transgress{\~a}o holoc{\^e}nica m{\'e}dia. 
                         An{\'a}lises preliminares de novos produtos de sensoriamento 
                         remoto disponibilizados nesses {\'u}ltimos anos mostraram o 
                         potencial de aprimoramento do mapa geomorfol{\'o}gico desse 
                         delta, que pode contribuir para a melhor 
                         reconstitui{\c{c}}{\~a}o paleoambiental e evolu{\c{c}}{\~a}o 
                         desse sistema eposicional. Assim, este trabalho teve por objetivo 
                         fornecer um mapa geomorfol{\'o}gico detalhado para a 
                         plan{\'{\i}}cie costeira do rio Doce com base em dados 
                         multissensores integrando Modelo Digital de Eleva{\c{c}}{\~a}o 
                         (MDE) do Shuttle Radar Topography Mission (SRTM), Phased Array 
                         type L-band Synthetic Aperture Radar (PALSAR) do Advanced Land 
                         Observing Satellite (ALOS), imagens TM/Landsat, al{\'e}m de 
                         imagens {\'o}ticas de alta resolu{\c{c}}{\~a}o 
                         extra{\'{\i}}das do Google EarthTM. O mapeamento 
                         geomorfol{\'o}gico feito por interpreta{\c{c}}{\~a}o visual 
                         resultou no estabelecimento de seis classes principais, designadas 
                         de: 1) drenagem atual; 2) cord{\~a}o litor{\^a}neo/spit; 3) 
                         paleocanal; 4) plan{\'{\i}}cie interdistribut{\'a}ria; 5) 
                         fl{\'u}vio-estuarino/lagunar/marinho raso; e 6) terra{\c{c}}o 
                         fluvial. De maneira geral, o emprego combinado dos produtos de 
                         sensoriamento produziu resultados satisfat{\'o}rios para a 
                         separa{\c{c}}{\~a}o dessas classes. O MDE-SRTM contribuiu para a 
                         identifica{\c{c}}{\~a}o somente da classe paleocanais. As 
                         imagens PALSAR foram {\'u}teis na identifica{\c{c}}{\~a}o das 
                         classes cord{\~a}o litor{\^a}neo/spit, paleocanal, 
                         fl{\'u}vio-estuarino/lagunar/marinho raso e terra{\c{c}}o 
                         fluvial. As imagens TM/Landsat possibilitaram o reconhecimento das 
                         classes drenagem atual, cord{\~a}o litor{\^a}neo/spit, 
                         plan{\'{\i}}cie interdistribut{\'a}ria e fl 
                         {\'u}vio-estuarino/lagunar/marinho raso. O mapa 
                         geomorfol{\'o}gico contribuiu na caracteriza{\c{c}}{\~a}o mais 
                         adequada dos v{\'a}rios subambientes do delta do rio Doce, 
                         consequentemente auxiliando na reconstru{\c{c}}{\~a}o de sua 
                         din{\^a}mica sedimentar. Assim, sustenta-se que a 
                         evolu{\c{c}}{\~a}o desse delta se processou de maneira 
                         epis{\'o}dica, com oscila{\c{c}}{\~o}es entre fases 
                         progradacionais, que resultaram na forma{\c{c}}{\~a}o dos 
                         cord{\~o}es litor{\^a}neos/spits, e fases transgressivas, que 
                         resultaram nos dep{\'o}sitos 
                         fl{\'u}vio-estuarinos/lagunares/marinho rasos. Al{\'e}m disto, 
                         diferentemente de outros deltas de onda formados ao longo da costa 
                         brasileira, o deltado rio Doce foi alimentado por canal principal 
                         inst{\'a}vel, o que gerou uma sucess{\~a}o de paleocanais em sua 
                         plan{\'{\i}}cie costeira central. Como consequ{\^e}ncia dessa 
                         din{\^a}mica, houve a forma{\c{c}}{\~a}o de um volume signifi 
                         cativo de dep{\'o}sitos de plan{\'{\i}}cie 
                         interdistribut{\'a}ria no entorno dos canais, que 
                         contribu{\'{\i}}ram conjuntamente para a destrui{\c{c}}{\~a}o 
                         dos cord{\~o}es litor{\^a}neos/spits em grande parte do delta. 
                         Ilhas desses dep{\'o}sitos em meio a dep{\'o}sitos de 
                         plan{\'{\i}}cie interdistribut{\'a}ria documentam que, no 
                         passado, os cord{\~o}es litor{\^a}neos/spits ocorriam em toda a 
                         extens{\~a}o da plan{\'{\i}}cie deltaica, tendo sido formados 
                         desde as fases iniciais do processo de prograda{\c{c}}{\~a}o. 
                         Esses dados n{\~a}o s{\~a}o, portanto, condizentes com modelo 
                         vigente de delta lagunar nos est{\'a}gios iniciais de 
                         prograda{\c{c}}{\~a}o desse sistema deposicional. ABSTRACT: 
                         Brazils eastern coast has a succession of deltaic systems, with 
                         the Doce River delta, located in the State of Esp{\'{\i}}rito 
                         Santo, being one of the most expressive. The main progradation of 
                         this delta, which has a cuspate geometry typical of wave-dominated 
                         deltas, has been attributed to a relative sea-level fall that 
                         followed the middle Holocene transgression. Preliminary analyses 
                         of new remote sensing products available in recent years have 
                         shown the potential to improve the geomorphological map of this 
                         delta, which can contribute to better reconstruct the 
                         paleoenvironment and the evolution of this depositional system. 
                         Thus, this study aimed to provide a detailed geomorphological map 
                         of the coastal plain of the Doce River based on multisensor data 
                         integrating Digital Elevation Model (DEM) from the Shuttle Radar 
                         Topography Mission (SRTM), Phased Array type L -band Synthetic 
                         Aperture Radar (PALSAR) of the Advanced Land Observing Satellite 
                         (ALOS), TM/Landsat images, and high-resolution optical images 
                         derived from Google EarthTM. The geomorphological mapping made by 
                         visual interpretation resulted in the establishment of six main 
                         classes, designated as: 1) modern drainage; 2) beach ridge/spit; 
                         3) paleochannel; 4) interdistributary plain; 5) fl 
                         uvio-estuarine/lagunar/shallow marine; and 6) fl uvial terrace. In 
                         general, the combined application the remote sensing data produced 
                         satisfactory results for this classifi cation. The DEM-SRTM helped 
                         identify only the paleochannel class. The PALSAR images were 
                         useful in identifying classes of beach ridge/spit, paleochannel, 
                         fluvio-estuarino/lagunar/shallow marine and fluvial terrace. The 
                         TM/Landsat images allowed the recognition of the classes modern 
                         drainage, beach ridge/spit, interdistributary plain and 
                         fluvio-estuarino/lagunar/shallow marine. The geomorphological map 
                         contributed to a more precise characterization of the several 
                         subenvironments of the Doce River delta, thus helping the 
                         reconstruction of its sedimentary dynamics. Thus, it is argued 
                         that the evolution of this delta occurred episodically, with 
                         oscillations between progradational phases that resulted in the 
                         formation of coastal beach ridges/spits, and transgressive phases 
                         that resulted in fluvio-estuarine/lagunar/shallow marine deposits. 
                         Moreover, unlike other wave-dominated deltas formed along the 
                         Brazilian coast, the Doce River delta was fed by a highly unstable 
                         channel, which generated a succession of palaeochannels in the 
                         central coastal plain. As a result of this dynamic, there was the 
                         formation of a signifi cant amount of interdistributary plain 
                         deposits surrounding the channels, which together contributed to 
                         the destruction of beach ridges/spits in great part of the delta. 
                         Islands of these deposits in the middle of interdistributary plain 
                         deposits attest the development of beach ridges/spits throughout 
                         the length of the deltaic plain, implying in their formation since 
                         the initial stages of delta progradation. These data are, 
                         therefore, not consistent with the current model of lagoonal delta 
                         in the early stages of development of progradation of this 
                         depositional system.",
                 issn = "1519-1540",
                label = "lattes: 0307721738107549 2 PolizelRoss:2014:CaMoDe",
             language = "pt",
        urlaccessdate = "28 mar. 2024"
}


Fechar