Diffusive methane fluxes from Negro, Solimões and Madeira rivers and fringing lakes in the Amazon basin
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
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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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 |
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INPA |
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INPA |
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Repositório Institucional do INPA |
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Repositório Institucional do INPA |
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https://repositorio.inpa.gov.br/bitstream/1/15791/1/artigo-inpa.pdf |
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Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
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