Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting

Detalhes bibliográficos
Autor(a) principal: TORRES,ANA LAURA R.
Data de Publicação: 2022
Outros Autores: PARISE,CLAUDIA K., PEZZI,LUCIANO P., QUEIROZ,MICHELLY G. DOS SANTOS, MACHADO,ADILSON M.B., CERVEIRA,GABRIEL S., CORREIA,GUSTAVO S., BARBOSA,WESLEY L., LIMA,LEONARDO G. DE, SUTIL,UESLEI A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000201110
Resumo: Abstract The formation of dense water masses at polar regions has been largely influenced by climate changes arising from global warming. In this context, based on ensemble simulations with a coupled model we evaluate the meridional shift of a climate signal (i.e., a cold and fresh water input pulse generated from melting of positive Antarctic sea ice (ASI) extremes) towards the Tropical Atlantic Ocean (TAO). This oceanic signal propagated from Southern Ocean towards the equator through the upper layers due to an increase in its buoyance. Its northward shift has given by the Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) flows, that inject cold and fresh mode/intermediate waters from into subtropical basin. The signal has reached low latitudes through the equatorial upwelling and spreads out southwards, through the upper branch of southern subtropical gyre. We concluded that 10 years of coupled simulations was enough time to propagate the climate signal generated by ASI positive extremes melting, which reached TOA around 2 year later. The oceanic connection between Southern Ocean and TAO is indeed established within the timescale analyzed in the study (10 years). Nonetheless, the period needed to completely dissipate the disturbance generated from ASI seems to be longer.
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spelling Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice meltingSea Ice MeltingFreshwater InputTeleconnectionsOceanic BridgeOceanographyAbstract The formation of dense water masses at polar regions has been largely influenced by climate changes arising from global warming. In this context, based on ensemble simulations with a coupled model we evaluate the meridional shift of a climate signal (i.e., a cold and fresh water input pulse generated from melting of positive Antarctic sea ice (ASI) extremes) towards the Tropical Atlantic Ocean (TAO). This oceanic signal propagated from Southern Ocean towards the equator through the upper layers due to an increase in its buoyance. Its northward shift has given by the Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) flows, that inject cold and fresh mode/intermediate waters from into subtropical basin. The signal has reached low latitudes through the equatorial upwelling and spreads out southwards, through the upper branch of southern subtropical gyre. We concluded that 10 years of coupled simulations was enough time to propagate the climate signal generated by ASI positive extremes melting, which reached TOA around 2 year later. The oceanic connection between Southern Ocean and TAO is indeed established within the timescale analyzed in the study (10 years). Nonetheless, the period needed to completely dissipate the disturbance generated from ASI seems to be longer.Academia Brasileira de Ciências2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000201110Anais da Academia Brasileira de Ciências v.94 suppl.1 2022reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765202220210800info:eu-repo/semantics/openAccessTORRES,ANA LAURA R.PARISE,CLAUDIA K.PEZZI,LUCIANO P.QUEIROZ,MICHELLY G. DOS SANTOSMACHADO,ADILSON M.B.CERVEIRA,GABRIEL S.CORREIA,GUSTAVO S.BARBOSA,WESLEY L.LIMA,LEONARDO G. DESUTIL,UESLEI A.eng2022-04-13T00:00:00Zoai:scielo:S0001-37652022000201110Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2022-04-13T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
title Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
spellingShingle Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
TORRES,ANA LAURA R.
Sea Ice Melting
Freshwater Input
Teleconnections
Oceanic Bridge
Oceanography
title_short Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
title_full Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
title_fullStr Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
title_full_unstemmed Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
title_sort Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting
author TORRES,ANA LAURA R.
author_facet TORRES,ANA LAURA R.
PARISE,CLAUDIA K.
PEZZI,LUCIANO P.
QUEIROZ,MICHELLY G. DOS SANTOS
MACHADO,ADILSON M.B.
CERVEIRA,GABRIEL S.
CORREIA,GUSTAVO S.
BARBOSA,WESLEY L.
LIMA,LEONARDO G. DE
SUTIL,UESLEI A.
author_role author
author2 PARISE,CLAUDIA K.
PEZZI,LUCIANO P.
QUEIROZ,MICHELLY G. DOS SANTOS
MACHADO,ADILSON M.B.
CERVEIRA,GABRIEL S.
CORREIA,GUSTAVO S.
BARBOSA,WESLEY L.
LIMA,LEONARDO G. DE
SUTIL,UESLEI A.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv TORRES,ANA LAURA R.
PARISE,CLAUDIA K.
PEZZI,LUCIANO P.
QUEIROZ,MICHELLY G. DOS SANTOS
MACHADO,ADILSON M.B.
CERVEIRA,GABRIEL S.
CORREIA,GUSTAVO S.
BARBOSA,WESLEY L.
LIMA,LEONARDO G. DE
SUTIL,UESLEI A.
dc.subject.por.fl_str_mv Sea Ice Melting
Freshwater Input
Teleconnections
Oceanic Bridge
Oceanography
topic Sea Ice Melting
Freshwater Input
Teleconnections
Oceanic Bridge
Oceanography
description Abstract The formation of dense water masses at polar regions has been largely influenced by climate changes arising from global warming. In this context, based on ensemble simulations with a coupled model we evaluate the meridional shift of a climate signal (i.e., a cold and fresh water input pulse generated from melting of positive Antarctic sea ice (ASI) extremes) towards the Tropical Atlantic Ocean (TAO). This oceanic signal propagated from Southern Ocean towards the equator through the upper layers due to an increase in its buoyance. Its northward shift has given by the Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) flows, that inject cold and fresh mode/intermediate waters from into subtropical basin. The signal has reached low latitudes through the equatorial upwelling and spreads out southwards, through the upper branch of southern subtropical gyre. We concluded that 10 years of coupled simulations was enough time to propagate the climate signal generated by ASI positive extremes melting, which reached TOA around 2 year later. The oceanic connection between Southern Ocean and TAO is indeed established within the timescale analyzed in the study (10 years). Nonetheless, the period needed to completely dissipate the disturbance generated from ASI seems to be longer.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
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=S0001-37652022000201110
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000201110
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0001-3765202220210800
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 Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.94 suppl.1 2022
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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