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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/05/1998 |
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Data da última atualização: |
27/03/2017 |
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Autoria: |
HAMILTON, S. K.; SIPPEL, S. J.; MELACK, J. M. |
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Afiliação: |
University of California, Santa Barbara. |
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Título: |
Inundation patterns in the Pantanal wetland of South America determined from passive microwave remote sensing. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Archiv fur Hydrobiologie, v.137, n.1, p.1-23, July, 1996. |
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Idioma: |
Inglês |
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Conteúdo: |
Seasonal inundation determines the structure and function of tropical floodplain ecosystems and therefore information on the spatial and temporal variability of inundation is fundamental to understand and manage these ecosystems. This study uses the 37-GHz polarization difference observed by the Scanning Multichannel Microwave Radiometer (SMMR: Nimbus-7 satellite) to reveal inundation patterns in the Pantanal, avast savanna floodplain located largely in Brazil. We calculated inundation area separately for 10 subregions using mixing models that account for the major landscape units with distinctive microwave emission characteristics. Maximum inundation occurred as early as February in the northern subregions and as late as June in the south, reflecting the delayed drainage of the region. As much as 131.000 km2 was inundated annually during the 9 years of SMMR observations (1979-87). Monthly estimates of the total area inundated in the region varied from 11.000-110.000 km2, averaging 53.000 km2. We reconstructed regional inundation patterns over the past 95 years from the correlation between the Paraguay River stage and total inundation area during the SMMR period. Both the maximum and minimum inundation area showed large interannual variability. |
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Palavras-Chave: |
America do Sul; Ecosystem; Unundation. |
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Thesagro: |
Ecossistema; Inundação. |
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Thesaurus Nal: |
Brazil; Pantanal; South America. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01935naa a2200241 a 4500
001 1792403
005 2017-03-27
008 1996 bl --- 0-- u #d
100 1 $aHAMILTON, S. K.
245 $aInundation patterns in the Pantanal wetland of South America determined from passive microwave remote sensing.
260 $c1996
520 $aSeasonal inundation determines the structure and function of tropical floodplain ecosystems and therefore information on the spatial and temporal variability of inundation is fundamental to understand and manage these ecosystems. This study uses the 37-GHz polarization difference observed by the Scanning Multichannel Microwave Radiometer (SMMR: Nimbus-7 satellite) to reveal inundation patterns in the Pantanal, avast savanna floodplain located largely in Brazil. We calculated inundation area separately for 10 subregions using mixing models that account for the major landscape units with distinctive microwave emission characteristics. Maximum inundation occurred as early as February in the northern subregions and as late as June in the south, reflecting the delayed drainage of the region. As much as 131.000 km2 was inundated annually during the 9 years of SMMR observations (1979-87). Monthly estimates of the total area inundated in the region varied from 11.000-110.000 km2, averaging 53.000 km2. We reconstructed regional inundation patterns over the past 95 years from the correlation between the Paraguay River stage and total inundation area during the SMMR period. Both the maximum and minimum inundation area showed large interannual variability.
650 $aBrazil
650 $aPantanal
650 $aSouth America
650 $aEcossistema
650 $aInundação
653 $aAmerica do Sul
653 $aEcosystem
653 $aUnundation
700 1 $aSIPPEL, S. J.
700 1 $aMELACK, J. M.
773 $tArchiv fur Hydrobiologie$gv.137, n.1, p.1-23, July, 1996.
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Embrapa Pantanal (CPAP) |
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