dc.creator | Fernandes, Tatiana Jorgetti | |
dc.creator | Dias, Pedro Leite da Silva | |
dc.creator | Freitas, Edmilson Dias de | |
dc.date.accessioned | 2014-11-03T11:55:50Z | |
dc.date.accessioned | 2018-07-04T16:52:46Z | |
dc.date.available | 2014-11-03T11:55:50Z | |
dc.date.available | 2018-07-04T16:52:46Z | |
dc.date.created | 2014-11-03T11:55:50Z | |
dc.date.issued | 2014 | |
dc.identifier | Climate Dynamics, Heidelberg, v.42, p. 3077–3086, 2014 | |
dc.identifier | 0930-7575 | |
dc.identifier | http://www.producao.usp.br/handle/BDPI/46491 | |
dc.identifier | 10.1007/s00382-013-1998-z | |
dc.identifier | http://dx.doi.org/10.1007/s00382-013-1998-z | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1641614 | |
dc.description.abstract | This study explores the ocean–atmosphere
interaction in the formation and dynamics of the South
Atlantic Convergence Zone (SACZ), through the analysis
of the heat sources estimated through the outgoing longwave
radiation. The results obtained with this study show
that the coupled variability between SACZ and the South
Atlantic Ocean indicates that in northern positioned SACZ
cases (over Southeastern Brazil), westerly anomalies are
verified in the low level continental tropical circulation,
consistent with the active phase of the South America
Monsoon System (SAMS). In these cases, cold anomalies
in the subtropical Atlantic Ocean cause an increase in the
continent–ocean temperature gradient, favoring an easterly
flow in this region, and blocking the SACZ at a northerly
position. Easterly anomalies in the tropical continent were
verified in the low level circulation in southern positioned
cases (over Southern Brazil), consistent with the SAMS
break phase. The SST anomaly patterns indicate cold
anomalies in the tropics and warm anomalies in the subtropics,
which do not favor the development of an easterly
flow at low levels over the western tropical Atlantic. In
these cases, two situations may occur: the strengthening of
the Low Level Jet (LLJ), which prevails in the eastern
subtropical South America and convergence with the South
Atlantic Subtropical High at its southern position; or the
atmospheric unstable conditions caused by ocean warm
SST anomalies (in this case the LLJ may be weaker than its
climatological intensity) | |
dc.language | eng | |
dc.publisher | Springer | |
dc.publisher | Heidelberg | |
dc.relation | Climate Dynamics | |
dc.rights | Copyright Springer-Verlag Berlin Heidelberg 2013 | |
dc.rights | restrictedAccess | |
dc.subject | South Atlantic Convergence Zone | |
dc.subject | Sea-surface-temperature anomalies | |
dc.subject | Atlantic dipole | |
dc.subject | Singular value decomposition | |
dc.title | The relationship between South Atlantic SST and SACZ intensity and positioning | |
dc.type | Artículos de revistas | |