HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER

Detalhes bibliográficos
Autor(a) principal: MORTATTI,J.
Data de Publicação: 1997
Outros Autores: MORAES,J.M., RODRIGUES, JR,J.C., VICTORIA,R.L., MARTINELLI,L.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000200009
Resumo: The 18O content of rain and river waters was used as an isotopic tracer in order to carry out the hydrograph separation of the Amazon river, during the 1973-1974 hydrological years, and to estimate the contributions of the surface runoff (event water) and baseflow (pre-event water) components to the total river flow. The average surface runoff and baseflow contributions were 30.3 and 69.7% respectively. At peak discharge, the mean contribution of the baseflow was about 57%. The results of the isotopic separation model were compared with the filter-separation autoregressive method, showing similar behavior and magnitude.
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spelling HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACERisotopic tracershydrograph separationAmazon riverThe 18O content of rain and river waters was used as an isotopic tracer in order to carry out the hydrograph separation of the Amazon river, during the 1973-1974 hydrological years, and to estimate the contributions of the surface runoff (event water) and baseflow (pre-event water) components to the total river flow. The average surface runoff and baseflow contributions were 30.3 and 69.7% respectively. At peak discharge, the mean contribution of the baseflow was about 57%. The results of the isotopic separation model were compared with the filter-separation autoregressive method, showing similar behavior and magnitude.Escola Superior de Agricultura "Luiz de Queiroz"1997-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000200009Scientia Agricola v.54 n.3 1997reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90161997000200009info:eu-repo/semantics/openAccessMORTATTI,J.MORAES,J.M.RODRIGUES, JR,J.C.VICTORIA,R.L.MARTINELLI,L.A.eng1999-02-03T00:00:00Zoai:scielo:S0103-90161997000200009Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:1999-02-03T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
title HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
spellingShingle HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
MORTATTI,J.
isotopic tracers
hydrograph separation
Amazon river
title_short HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
title_full HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
title_fullStr HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
title_full_unstemmed HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
title_sort HYDROGRAPH SEPARATION OF THE AMAZON RIVER USING 18O AS AN ISOTOPIC TRACER
author MORTATTI,J.
author_facet MORTATTI,J.
MORAES,J.M.
RODRIGUES, JR,J.C.
VICTORIA,R.L.
MARTINELLI,L.A.
author_role author
author2 MORAES,J.M.
RODRIGUES, JR,J.C.
VICTORIA,R.L.
MARTINELLI,L.A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv MORTATTI,J.
MORAES,J.M.
RODRIGUES, JR,J.C.
VICTORIA,R.L.
MARTINELLI,L.A.
dc.subject.por.fl_str_mv isotopic tracers
hydrograph separation
Amazon river
topic isotopic tracers
hydrograph separation
Amazon river
description The 18O content of rain and river waters was used as an isotopic tracer in order to carry out the hydrograph separation of the Amazon river, during the 1973-1974 hydrological years, and to estimate the contributions of the surface runoff (event water) and baseflow (pre-event water) components to the total river flow. The average surface runoff and baseflow contributions were 30.3 and 69.7% respectively. At peak discharge, the mean contribution of the baseflow was about 57%. The results of the isotopic separation model were compared with the filter-separation autoregressive method, showing similar behavior and magnitude.
publishDate 1997
dc.date.none.fl_str_mv 1997-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000200009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000200009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90161997000200009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.54 n.3 1997
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
_version_ 1748936455736000512

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