Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Antarctic icebergs melt over the Southern Ocean : climatology and impact on sea ice
Autores:  Merino, Nacho
Le Sommer, Julien
Durand, Gael
Jourdain, Nicolas C.
Madec, Gurvan
Mathiot, Pierre
Tournadre, Jean
Data:  2016-08
Ano:  2016
Palavras-chave:  Icebergs
Southern Ocean
Sea ice
Freshwater fluxes
Resumo:  Recent increase in Antarctic freshwater release to the Southern Ocean is suggested to contribute to change in water masses and sea ice. However, climate models differ in their representation of the freshwater sources. Recent improvements in altimetry-based detection of small icebergs and in estimates of the mass loss of Antarctica may help better constrain the values of Antarctic freshwater releases. We propose a model-based seasonal climatology of iceberg melt over the Southern Ocean using state-of-the-art observed glaciological estimates of the Antarctic mass loss. An improved version of a Lagrangian iceberg model is coupled with a global, eddy-permitting ocean/sea ice model and compared to small icebergs observations. Iceberg melt increases sea ice cover, about 10% in annual mean sea ice volume, and decreases sea surface temperature over most of the Southern Ocean, but with distinctive regional patterns. Our results underline the importance of improving the representation of Antarctic freshwater sources. This can be achieved by forcing ocean/sea ice models with a climatological iceberg fresh-water flux.
Tipo:  Text
Idioma:  Inglês
Identificador:  http://archimer.ifremer.fr/doc/00335/44579/44294.pdf

DOI:10.1016/j.ocemod.2016.05.001

http://archimer.ifremer.fr/doc/00335/44579/
Editor:  Elsevier Sci Ltd
Formato:  application/pdf
Fonte:  Ocean Modelling (1463-5003) (Elsevier Sci Ltd), 2016-08 , Vol. 104 , P. 99-110
Direitos:  2016 Elsevier Ltd. All rights reserved.

info:eu-repo/semantics/openAccess

restricted use
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional