Pacific and Atlantic Multidecadal Variability in the Kiel Climate Model.

Park, Wonsun and Latif, Mojib (2010) Pacific and Atlantic Multidecadal Variability in the Kiel Climate Model. Open Access Geophysical Research Letters, 37 . L24702. DOI 10.1029/2010GL045560.

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Pacific Decadal Variability (PDV) and Atlantic Multidecadal Variability (AMV), the two leading decadal modes of observed Northern Hemisphere sea surface temperature (SST)
variability, are investigated in a multi-millennial control integration of the Kiel Climate Model (KCM). It is shown that the two phenomena are independent modes in the model and can be easily separated by Principal Oscillation Pattern (POP) analysis of model SST. PDVrelated variability covers the whole North Pacific with strong signals in both the mid-latitude North Pacific and the western Tropical Pacific. Strong signals are also simulated in the eastern
Indian Ocean Sector. PDV’s memory, however, resides in the North Pacific and is linked to the subtropical gyre. The AMV mechanism is related to the Atlantic Meridional Overturning Circulation (AMOC). A stochastic mechanism applies to both PDV and AMV.

Document Type: Article
Keywords: Climatology; Pacific Decadal Variability; PDV; Atlantic Multidecadal Variability; AMV; Kiel Climate Model; KCM; Atlantic Meridional Overturning Circulation; AMOC
Research affiliation: OceanRep > SFB 754
OceanRep > SFB 754 > A1
OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-ME Maritime Meteorology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2010GL045560
ISSN: 0094-8276
Projects: SFB754, THOR, KCM
Date Deposited: 18 Nov 2010 12:26
Last Modified: 23 Sep 2019 21:47

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