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Abstract:

The South Pacific (SP) region exerts large control on the climate of the Southern Hemisphere at many times scales. This paper identifies the main modes of interannual sea surface temperature (SST) variability in the SP which consist of a tropical-driven mode related to a horseshoe structure of positive/negative SST anomalies within midlatitudes and highly correlated to ENSO and Interdecadal Pacific Oscillation (IPO) variability, and another mode mostly confined to extratropical latitudes which is characterized by zonal propagation of SST anomalies within the South Pacific Gyre. Both modes are associated with temperature and rainfall anomalies over the continental regions of the Southern Hemisphere. Besides the leading mode which is related to well known warmer/cooler and drier/moister conditions due to its relationship with ENSO and the IPO, an inspection of the extratropical mode indicates that it is associated with distinct patterns of sea level pressure and surface temperature advection. These relationships are used here as plausible and partial explanations to the observed warming trend observed within the Southern Hemisphere during the last decades. © 2017, Springer-Verlag Berlin Heidelberg.

Registro:

Documento: Artículo
Título:Observed modes of sea surface temperature variability in the South Pacific region
Autor:Saurral, R.I.; Doblas-Reyes, F.J.; García-Serrano, J.
Filiación:Departamento de Ciencias de la Atmósfera y los Océanos (DCAO; FCEN, UBA), Centro de Investigaciones del Mar y la Atmósfera (CIMA; UBA-CONICET), UMI-IFAECI/CNRS, Int. Güiraldes 2160, Ciudad Universitaria, Pab. 2 (C1428EGA), Buenos Aires, Argentina
Barcelona Supercomputing Center (BSC), Barcelona, Spain
Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
Palabras clave:CEOF analysis; ENSO; IPO; South Pacific; Southern Hemisphere warming; air-sea interaction; decadal variation; El Nino-Southern Oscillation; sea level pressure; sea surface temperature; Southern Hemisphere; temperature anomaly; warming; Pacific Ocean; Pacific Ocean (South)
Año:2018
Volumen:50
Número:3-4
Página de inicio:1129
Página de fin:1143
DOI: http://dx.doi.org/10.1007/s00382-017-3666-1
Título revista:Climate Dynamics
Título revista abreviado:Clim. Dyn.
ISSN:09307575
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09307575_v50_n3-4_p1129_Saurral

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Citas:

---------- APA ----------
Saurral, R.I., Doblas-Reyes, F.J. & García-Serrano, J. (2018) . Observed modes of sea surface temperature variability in the South Pacific region. Climate Dynamics, 50(3-4), 1129-1143.
http://dx.doi.org/10.1007/s00382-017-3666-1
---------- CHICAGO ----------
Saurral, R.I., Doblas-Reyes, F.J., García-Serrano, J. "Observed modes of sea surface temperature variability in the South Pacific region" . Climate Dynamics 50, no. 3-4 (2018) : 1129-1143.
http://dx.doi.org/10.1007/s00382-017-3666-1
---------- MLA ----------
Saurral, R.I., Doblas-Reyes, F.J., García-Serrano, J. "Observed modes of sea surface temperature variability in the South Pacific region" . Climate Dynamics, vol. 50, no. 3-4, 2018, pp. 1129-1143.
http://dx.doi.org/10.1007/s00382-017-3666-1
---------- VANCOUVER ----------
Saurral, R.I., Doblas-Reyes, F.J., García-Serrano, J. Observed modes of sea surface temperature variability in the South Pacific region. Clim. Dyn. 2018;50(3-4):1129-1143.
http://dx.doi.org/10.1007/s00382-017-3666-1