Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin

Detalhes bibliográficos
Autor(a) principal: Barbosa, Pedro Maia
Data de Publicação: 2016
Outros Autores: Melack, John M., Farjalla, Vinícius Fortes, Amaral, João Henrique Fernandes, Scofield, Vinicius, Forsberg, Bruce Rider
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15791
Resumo: The first extensive set of measurements of methane concentrations and fluxes for the Negro River and its major tributaries combined with complementary data for the Solimões and Madeira rivers and several tributaries are presented and their temporal and spatial variations examined. Fluxes were measured using floating chambers, and dissolved CH4 concentrations were measured by the headspace technique. In the Solimões basin, tributaries had higher fluxes when water levels were low; no statistical difference among periods for lakes and the main stem river was observed. In the Negro basin, rivers had higher fluxes with greater variations among rivers during high water than during low water based on fluxes calculated from the concentration gradient and modelled gas transfer coefficients. We estimate a regional methane emission of 0.31 Tg C yr−1 for large river channels in the lowland Amazon basin. © 2016 Association for the Sciences of Limnology and Oceanography
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spelling Barbosa, Pedro MaiaMelack, John M.Farjalla, Vinícius FortesAmaral, João Henrique FernandesScofield, ViniciusForsberg, Bruce Rider2020-05-18T21:21:04Z2020-05-18T21:21:04Z2016https://repositorio.inpa.gov.br/handle/1/1579110.1002/lno.10358The first extensive set of measurements of methane concentrations and fluxes for the Negro River and its major tributaries combined with complementary data for the Solimões and Madeira rivers and several tributaries are presented and their temporal and spatial variations examined. Fluxes were measured using floating chambers, and dissolved CH4 concentrations were measured by the headspace technique. In the Solimões basin, tributaries had higher fluxes when water levels were low; no statistical difference among periods for lakes and the main stem river was observed. In the Negro basin, rivers had higher fluxes with greater variations among rivers during high water than during low water based on fluxes calculated from the concentration gradient and modelled gas transfer coefficients. We estimate a regional methane emission of 0.31 Tg C yr−1 for large river channels in the lowland Amazon basin. © 2016 Association for the Sciences of Limnology and OceanographyVolume 61, Pags. S221-S237Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessConcentration (composition)Flux MeasurementMeasurement MethodMethaneRiver ChannelSpatio-temporal AnalysisTributaryWater LevelAmazon BasinAmazonasBrasilMadeira RiverRio Negro BasinSolimoes RiverDiffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLimnology and Oceanographyengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf421553https://repositorio.inpa.gov.br/bitstream/1/15791/1/artigo-inpa.pdf2d2b5a7276e83f3e898e595f3402db44MD511/157912020-05-18 17:50:19.574oai:repositorio:1/15791Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-05-18T21:50:19Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
title Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
spellingShingle Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
Barbosa, Pedro Maia
Concentration (composition)
Flux Measurement
Measurement Method
Methane
River Channel
Spatio-temporal Analysis
Tributary
Water Level
Amazon Basin
Amazonas
Brasil
Madeira River
Rio Negro Basin
Solimoes River
title_short Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
title_full Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
title_fullStr Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
title_full_unstemmed Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
title_sort Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
author Barbosa, Pedro Maia
author_facet Barbosa, Pedro Maia
Melack, John M.
Farjalla, Vinícius Fortes
Amaral, João Henrique Fernandes
Scofield, Vinicius
Forsberg, Bruce Rider
author_role author
author2 Melack, John M.
Farjalla, Vinícius Fortes
Amaral, João Henrique Fernandes
Scofield, Vinicius
Forsberg, Bruce Rider
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Barbosa, Pedro Maia
Melack, John M.
Farjalla, Vinícius Fortes
Amaral, João Henrique Fernandes
Scofield, Vinicius
Forsberg, Bruce Rider
dc.subject.eng.fl_str_mv Concentration (composition)
Flux Measurement
Measurement Method
Methane
River Channel
Spatio-temporal Analysis
Tributary
Water Level
Amazon Basin
Amazonas
Brasil
Madeira River
Rio Negro Basin
Solimoes River
topic Concentration (composition)
Flux Measurement
Measurement Method
Methane
River Channel
Spatio-temporal Analysis
Tributary
Water Level
Amazon Basin
Amazonas
Brasil
Madeira River
Rio Negro Basin
Solimoes River
description The first extensive set of measurements of methane concentrations and fluxes for the Negro River and its major tributaries combined with complementary data for the Solimões and Madeira rivers and several tributaries are presented and their temporal and spatial variations examined. Fluxes were measured using floating chambers, and dissolved CH4 concentrations were measured by the headspace technique. In the Solimões basin, tributaries had higher fluxes when water levels were low; no statistical difference among periods for lakes and the main stem river was observed. In the Negro basin, rivers had higher fluxes with greater variations among rivers during high water than during low water based on fluxes calculated from the concentration gradient and modelled gas transfer coefficients. We estimate a regional methane emission of 0.31 Tg C yr−1 for large river channels in the lowland Amazon basin. © 2016 Association for the Sciences of Limnology and Oceanography
publishDate 2016
dc.date.issued.fl_str_mv 2016
dc.date.accessioned.fl_str_mv 2020-05-18T21:21:04Z
dc.date.available.fl_str_mv 2020-05-18T21:21:04Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://repositorio.inpa.gov.br/handle/1/15791
dc.identifier.doi.none.fl_str_mv 10.1002/lno.10358
url https://repositorio.inpa.gov.br/handle/1/15791
identifier_str_mv 10.1002/lno.10358
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 61, Pags. S221-S237
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Limnology and Oceanography
publisher.none.fl_str_mv Limnology and Oceanography
dc.source.none.fl_str_mv reponame:Repositório Institucional do INPA
instname:Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron:INPA
instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Repositório Institucional do INPA
collection Repositório Institucional do INPA
bitstream.url.fl_str_mv https://repositorio.inpa.gov.br/bitstream/1/15791/1/artigo-inpa.pdf
bitstream.checksum.fl_str_mv 2d2b5a7276e83f3e898e595f3402db44
bitstream.checksumAlgorithm.fl_str_mv MD5
repository.name.fl_str_mv Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)
repository.mail.fl_str_mv
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