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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/43JF26E
Repositóriosid.inpe.br/mtc-m21c/2020/11.12.12.29   (acesso restrito)
Última Atualização2020:11.12.12.29.52 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21c/2020/11.12.12.29.52
Última Atualização dos Metadados2022:01.04.01.35.37 (UTC) administrator
DOI10.1016/j.jmarsys.2020.103457
ISSN0924-7963
1879-1573
Chave de CitaçãoAvelinaCuFaHaKeMa:2020:InENSA
TítuloContrasting dissolved organic carbon concentrations in the Bransfield Strait, Northern Antarctic Peninsula: insights into ENSO and SAM effects
Ano2020
MêsDec.
Data de Acesso18 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho12966 KiB
2. Contextualização
Autor1 Avelina, Raquel
2 Cunha, Letícia Cotrim da
3 Farias, Cássia de O.
4 Hamacher, Claudia
5 Kerr, Rodrigo
6 Mata, Maurício M.
Grupo1
2 COCST-COCST-INPE-MCTIC-GOV-BR
Afiliação1 Universidade do Estado do Rio de Janeiro (UERJ)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade do Estado do Rio de Janeiro (UERJ)
4 Universidade do Estado do Rio de Janeiro (UERJ)
5 Brazilian Ocean Acidification Network (BrOA)
6 Universidade Federal do Rio Grande (FURG)
Endereço de e-Mail do Autor1 santos.raquel@posgraduacao.uerj.br
RevistaJournal of Marine Systems
Volume212
Páginase103457
Nota SecundáriaA2_ZOOTECNIA_/_RECURSOS_PESQUEIROS A2_INTERDISCIPLINAR A2_GEOCIÊNCIAS A2_BIODIVERSIDADE B1_CIÊNCIAS_BIOLÓGICAS_I
Histórico (UTC)2020-11-12 12:30:37 :: simone -> administrator :: 2020
2022-01-04 01:35:37 :: administrator -> simone :: 2020
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveOrganic matter
Carbon sink
Antarctic water masses
Southern Ocean
Climate modes
ResumoThe marine reservoir of dissolved organic carbon (DOC) is equivalent to the atmospheric carbon reservoir and represents the largest reduced carbon stock in the ocean. However, the role of DOC in the global carbon cycle is not fully understood. In this study, we analyzed the distribution of DOC in the water column of the Bransfield Strait, Northern Antarctic Peninsula. Data were collected during two summer cruises of the NAUTILUS project conducted by the Brazilian High Latitude Oceanography Group in February 2015 and 2016. We investigated the possible effects of the El Nino - Southern Oscillation (ENSO) and Southern Annular Mode (SAM) climate modes on DOC variability based on correlations between DOC and temperature, salinity, and dissolved oxygen. Concentrations of DOC ranged from 40.70 to 122.82 mu mol kg(-1) in 2015 and 33.12 to 112.20 mu mol kg(-1) in 2016. The analysis shows that the vertical distribution of DOC in the Bransfield Strait may be controlled by a combination of vertical stratification, vertical export of organic matter and biological activity in the upper mixed layer during summertime. The significant interannual differences observed between DOC concentration and most physicochemical parameters may be linked to ENSO and SAM climate modes. The highest DOC concentration was observed in February 2015, associated with a layer of warm surface water, due to the higher stratification of the water column. The ENSO and SAM climate modes were low and positive in that year, favoring intrusions of waters from the Antarctic Circumpolar Current. In contrast, February 2016 was characterized by record positive ENSO and SAM modes. The intensification of the Weddell Gyre induced the advection of cold, more oxygenated and recently formed shelf waters into the Bransfield Strait, which may have contributed to the lower DOC concentrations. This study contributes to a better understanding of the role of DOC in the global carbon cycle in a region of complex ocean circulation and mixing, and sensitive to global climate change.
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvoavelina_contrasting.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
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Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F3T29H
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.19.20.40 2
DivulgaçãoWEBSCI
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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