Dendroclimatology from Regional to Continental Scales: Understanding Regional Processes to Reconstruct Large-Scale Climatic Variations Across theWestern Americas - Dendroclimatology - page 190

Atlantic Oceans clearly show that the temperature reconstructions contain
information about climate variability extending over much of the tropical-
subtropical Pacific and over the south Atlantic to Africa. The correlation
fields between the reconstructions and SST (Box Fig. 7.6 ) are reminiscent of
some of the global modes of SST recently derived from instrumental records.
The spatial amplitudes obtained by correlating the northern Patagonian recon-
struction with SSTs closely resemble the Southern Hemisphere counterpart of
the interdecadal mode of the Pacific SST variability identified by Garreaud
and Batistti (1999) and Enfield and Mestas-Nuñez ( 2000 ) . Consistent with
the documented decadal oscillatory mode of Pacific SST, the spatial field
of correlations is characterized by anomalies in the western Pacific that
extent to the southeast into subtropical South America. The spatial pattern
that results from comparing the southern Andes reconstruction and SSTs
resembles the 'global warming' mode identified by Enfield and Mestas-
Nuñez ( 2000 ) . According to these authors, the 'global warming' mode is
the ocean counterpart to the global warming seen in surface air temperatures
(SATs).
—R. Villalba, A. Lara, and M. Masiokas
Box Fig. 7.6 Spatial correlation patterns (1857-1989) between sea surface temperature
(SST) anomalies over the south Pacific and south Atlantic Oceans and the temperature
reconstructions for the northern and southern sectors of the southern Patagonian Andes