Climate Variations Diagnostics Group
This group studies the mechanisms of natural variability in the
coupled atmosphere/ocean system over the Pacific and the surrounding
regions, with various temporal and spatial scales, through analysis
of observed data sets and output of ensemble hindcast experiments.
In addition, we perform general circulation model experiments, for
elucidating the mechanisms of fast atmospheric response to anomalies
in mid- and high-latitude sea surface temperature (SST) and sea
ice, and for studying behavior of meso-scale perturbations.±@
The group has identified a particular type of decadal/interdecadal
climate events (DICE), inherent to the mid-latitude Northern Pacific
and accompanied by the anomalous Aleutian low. We are now studying
various aspects of large-scale air/sea interaction processes that
are involved in the variability. Our investigation extends into
the Atlantic DICE and the possible remote influence of the interannual
climate variability over the North Pacific (Aleutian-Icelandic low
seesaw, the figure below), including climatic impact (temperature,
precipitation, sea ice, etc.) over the entire extratropical Northern
Hemisphere. Furthermore, we are also studying the variability of
the Siberian high and associated modulations of the East Asian winter
monsoon upon storm track activities over the Northwestern Pacific.
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