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The Pacific multidecadal climate variability (PMV) is an important phenomenon that has significant economic and societal impact. It is not only of considerable scientific interest but also a central component for potential long-term climate prediction. In this study, the PMV in the Community Climate System Model version 3 (CCSM3) is investigated with a combined statistical and dynamical approach. Specifically designed sensitivity experiments are performed to explicitly identify the origin of the PMV. The results support a North Pacific origin for the PMV, with the tropical Pacific responding…mehr

Produktbeschreibung
The Pacific multidecadal climate variability (PMV) is
an important
phenomenon that has significant economic and
societal impact. It is
not only of considerable scientific interest but also
a central
component for potential long-term climate prediction.
In this study,
the PMV in the Community Climate System Model version
3 (CCSM3)
is investigated with a combined statistical and
dynamical approach.
Specifically designed sensitivity experiments are
performed to
explicitly identify the origin of the PMV. The
results support a North
Pacific origin for the PMV, with the tropical
Pacific responding
passively. The North Pacific originated PMV is able
to significantly
impact the tropical Pacific and other sectors of the
globe through
atmospheric teleconnections. A first mechanism of the
PMV is
advanced based on a more thothough analysis,
characterized by a
crucial role of the subpolar North Pacific. The
analysis should help
shed some light on the origin and mechanism of PMV in
nature, and
should be especially useful to researchers in climate
change and
variability.
Autorenporträt
Yafang Zhong, Ph.D: Studied climate change and variability at
Center for Climate
Change, University of Wisconsin, Madison.