dc.contributor.author |
Marson, Juliana Marini |
|
dc.contributor.author |
Wainer, Ilana Elazari Klein Coaracy |
|
dc.contributor.author |
Mata, Mauricio Magalhães |
|
dc.contributor.author |
Zhengyu, Liu |
|
dc.date.accessioned |
2016-01-22T07:19:21Z |
|
dc.date.available |
2016-01-22T07:19:21Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
MARSON, Juliana Marini et al. The impacts of deglacial meltwater forcing on the south Atlantic Ocean deep circulation since the Last glacial maximum. Climate of the Past, v.10, p.1723–1734, 2014. Disponível em: <http://www.clim-past.net/10/1723/2014/cp-10-1723-2014.pdf >. Acesso em 22 Jan 2016. |
pt_BR |
dc.identifier.issn |
1814-9359 |
|
dc.identifier.uri |
http://repositorio.furg.br/handle/1/5858 |
|
dc.description.abstract |
A NCAR-CCSM3 (National Center for Atmospheric
Research – Community Climate System Model version
3) state-of-the-art transient paleoclimate simulation with
prescribed freshwater inflows is used to investigate the
changes and evolution of the South Atlantic water mass
structure from the Last Glacial Maximum (LGM) to the
present day. Model results show that 21 000 yr ago the water
column was substantially stratified due to the presence
of a saltier-than-today Antarctic Bottom Water (AABW),
forming a salinity barrier that prevented dense waters from
the Northern Hemisphere from sinking. This salinity barrier
started to erode after the termination of the Heinrich
event 1, when its associated meltwater was transported southward,
freshening the AABW. The removal of the barrier after
14 ka triggered the production of the North Atlantic Deep
Water (NADW), which spread into the deeper layers of the
South Atlantic at the onset of the Holocene. At this point,
the NADW acquired its modern-day structure, establishing a
deeper Atlantic meridional overturning circulation (AMOC). |
pt_BR |
dc.language.iso |
eng |
pt_BR |
dc.rights |
open access |
pt_BR |
dc.title |
The impacts of deglacial meltwater forcing on the south Atlantic Ocean deep circulation since the Last glacial maximum |
pt_BR |
dc.type |
article |
pt_BR |
dc.identifier.doi |
:10.5194/cp-10-1723-2014 |
pt_BR |