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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
25/02/2010 |
Data da última atualização: |
22/07/2014 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
DANTAS, M. S.; ROSA, R. R.; CALHEIROS, D. F.; VERONESE, T. B.; LIMA, I. B. T. de; HAMILTON, S. |
Afiliação: |
Murilo da Silva Dantas, INPE; Reinaldo Roberto Rosa, INPE; DEBORA FERNANDES CALHEIROS, CPAP; Thalita Biazzuz Veronese, INPE; IVAN BERGIER TAVARES DE LIMA, CPAP; Stephen Hamilton, Michigan State University. |
Título: |
Análise espectral de dados SMMR para estudo de padrões de Inundação do Pantanal. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais... São José dos Campos: INPE, 2009. |
Páginas: |
p. 4701- 4706 |
Idioma: |
Português |
Conteúdo: |
Inundation seasonal patterns are important in the understanding of tropical floodplain ecosystems dynamics. In this study, we have analyzed data derived from 37-GHz polarization differences observed by the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR). The passive microwave observations, for 10 Pantanal subregioes, provide an robust signature of inundation dynamics in large wetlands such as the Pantanal. The time series was obtained taking into account the differences between vertically and horizontally polarized brightness temperatures providing a sensitive indicator of the surface water against a vegetation land surface background. Each time series was analyzed by applying the gradient pattern analysis on a multiresolution representation obtained from wavelet decomposition /reconstrution technique. The main result have shown similar variability patterns for the following groups of subregions: (i) Miranda and Piquiri; (ii) Negro and Nhecolandia; (iii) Corixo, Paraguay, Cuiabá and Taquari fan; and (iv) Taquari river and Nabileque. Some hydrological aspects are discussed in order to understand the clusterization found from our results. |
Palavras-Chave: |
análise de padrões-gradiente; padrçoes de inundação; varredura multi-canal em microondas. |
Thesaurus Nal: |
Pantanal; wavelet. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/105241/1/57195.pdf
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Marc: |
LEADER 01938nam a2200241 a 4500 001 1788901 005 2014-07-22 008 2009 bl uuuu u00u1 u #d 100 1 $aDANTAS, M. S. 245 $aAnálise espectral de dados SMMR para estudo de padrões de Inundação do Pantanal. 260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais... São José dos Campos: INPE$c2009 300 $ap. 4701- 4706 520 $aInundation seasonal patterns are important in the understanding of tropical floodplain ecosystems dynamics. In this study, we have analyzed data derived from 37-GHz polarization differences observed by the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR). The passive microwave observations, for 10 Pantanal subregioes, provide an robust signature of inundation dynamics in large wetlands such as the Pantanal. The time series was obtained taking into account the differences between vertically and horizontally polarized brightness temperatures providing a sensitive indicator of the surface water against a vegetation land surface background. Each time series was analyzed by applying the gradient pattern analysis on a multiresolution representation obtained from wavelet decomposition /reconstrution technique. The main result have shown similar variability patterns for the following groups of subregions: (i) Miranda and Piquiri; (ii) Negro and Nhecolandia; (iii) Corixo, Paraguay, Cuiabá and Taquari fan; and (iv) Taquari river and Nabileque. Some hydrological aspects are discussed in order to understand the clusterization found from our results. 650 $aPantanal 650 $awavelet 653 $aanálise de padrões-gradiente 653 $apadrçoes de inundação 653 $avarredura multi-canal em microondas 700 1 $aROSA, R. R. 700 1 $aCALHEIROS, D. F. 700 1 $aVERONESE, T. B. 700 1 $aLIMA, I. B. T. de 700 1 $aHAMILTON, S.
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Embrapa Pantanal (CPAP) |
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1. | | DANTAS, M. S.; ROSA, R. R.; CALHEIROS, D. F.; VERONESE, T. B.; LIMA, I. B. T. de; HAMILTON, S. Análise espectral de dados SMMR para estudo de padrões de Inundação do Pantanal. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 14., 2009, Natal. Anais... São José dos Campos: INPE, 2009. p. 4701- 4706Tipo: Artigo em Anais de Congresso / Nota Técnica |
Biblioteca(s): Embrapa Pantanal. |
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