Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir

Detalhes bibliográficos
Autor(a) principal: Vale,Roseilson
Data de Publicação: 2018
Outros Autores: Santana,Raoni, Gomes,Ana Carla, Tóta,Julio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ambiente & Água
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2018000300306
Resumo: Abstract The Balbina reservoir (59°28'50'' W, 1°53'25'' S), located near the city of Manaus, AM in central Amazonia, is the second largest hydroelectric reservoir in the Amazon basin. Carbon dioxide concentration measurements were performed at high frequency (10 Hz) at this reservoir with an IRGA Model LiCOR 7500A and meteorological variables were measured with a floating platform with sensors 2 meters above the surface of the lake. Maximum and minimum CO2 concentrations were observed during the night, related to forest breeze enriched with CO2 and the respiration or photosynthetic activity of the lake. Due to the dimensions of the lake, both land and lake breezes control the concentration of CO2. CO2 showed a strong correlation with the meteorological variables, temperature (- 0.76) and relative humidity (0.71). However, only the wind direction showed a statistically significant effect at 5% in the cross-correlation. Our results corroborate other studies in this lake and other Amazonian reservoirs.
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spelling Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoirbreezemeteorological variableswind direction.Abstract The Balbina reservoir (59°28'50'' W, 1°53'25'' S), located near the city of Manaus, AM in central Amazonia, is the second largest hydroelectric reservoir in the Amazon basin. Carbon dioxide concentration measurements were performed at high frequency (10 Hz) at this reservoir with an IRGA Model LiCOR 7500A and meteorological variables were measured with a floating platform with sensors 2 meters above the surface of the lake. Maximum and minimum CO2 concentrations were observed during the night, related to forest breeze enriched with CO2 and the respiration or photosynthetic activity of the lake. Due to the dimensions of the lake, both land and lake breezes control the concentration of CO2. CO2 showed a strong correlation with the meteorological variables, temperature (- 0.76) and relative humidity (0.71). However, only the wind direction showed a statistically significant effect at 5% in the cross-correlation. Our results corroborate other studies in this lake and other Amazonian reservoirs.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2018000300306Revista Ambiente & Água v.13 n.3 2018reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2186info:eu-repo/semantics/openAccessVale,RoseilsonSantana,RaoniGomes,Ana CarlaTóta,Julioeng2018-05-28T00:00:00Zoai:scielo:S1980-993X2018000300306Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2018-05-28T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false
dc.title.none.fl_str_mv Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
title Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
spellingShingle Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
Vale,Roseilson
breeze
meteorological variables
wind direction.
title_short Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
title_full Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
title_fullStr Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
title_full_unstemmed Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
title_sort Increased nocturnal CO2 concentration during breeze circulation events in a tropical reservoir
author Vale,Roseilson
author_facet Vale,Roseilson
Santana,Raoni
Gomes,Ana Carla
Tóta,Julio
author_role author
author2 Santana,Raoni
Gomes,Ana Carla
Tóta,Julio
author2_role author
author
author
dc.contributor.author.fl_str_mv Vale,Roseilson
Santana,Raoni
Gomes,Ana Carla
Tóta,Julio
dc.subject.por.fl_str_mv breeze
meteorological variables
wind direction.
topic breeze
meteorological variables
wind direction.
description Abstract The Balbina reservoir (59°28'50'' W, 1°53'25'' S), located near the city of Manaus, AM in central Amazonia, is the second largest hydroelectric reservoir in the Amazon basin. Carbon dioxide concentration measurements were performed at high frequency (10 Hz) at this reservoir with an IRGA Model LiCOR 7500A and meteorological variables were measured with a floating platform with sensors 2 meters above the surface of the lake. Maximum and minimum CO2 concentrations were observed during the night, related to forest breeze enriched with CO2 and the respiration or photosynthetic activity of the lake. Due to the dimensions of the lake, both land and lake breezes control the concentration of CO2. CO2 showed a strong correlation with the meteorological variables, temperature (- 0.76) and relative humidity (0.71). However, only the wind direction showed a statistically significant effect at 5% in the cross-correlation. Our results corroborate other studies in this lake and other Amazonian reservoirs.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S1980-993X2018000300306
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2018000300306
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4136/ambi-agua.2186
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 Instituto de Pesquisas Ambientais em Bacias Hidrográficas
publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
dc.source.none.fl_str_mv Revista Ambiente & Água v.13 n.3 2018
reponame:Revista Ambiente & Água
instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron:IPABHI
instname_str Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron_str IPABHI
institution IPABHI
reponame_str Revista Ambiente & Água
collection Revista Ambiente & Água
repository.name.fl_str_mv Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
repository.mail.fl_str_mv ||ambi.agua@gmail.com
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