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Cited by 485

The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.

The Forcing of the Pacific Decadal Oscillation*

Open access
Schneider, Niklas, Cornuelle, Bruce D.·2005·Journal of Climate

Abstract

The Pacific decadal oscillation (PDO), defined as the leading empirical orthogonal function of North Pacific sea surface temperature anomalies, is a widely used index for decadal variability. It is shown that the PDO can be recovered from a reconstruction of North Pacific sea surface temperature anomalies based on a first-order autoregressive model and forcing by variability of the Aleutian low, El Niño–Southern Oscillation (ENSO), and oceanic zonal advection anomalies in the Kuroshio–Oyashio Extension. The latter results from oceanic Rossby waves that are forced by North Pacific Ekman pumping. The SST response patterns to these processes are not orthogonal, and they determine the spatial characteristics of the PDO. The importance of the different forcing processes is frequency dependent. At interannual time scales, forcing from ENSO and the Aleutian low determines the response in equal parts. At decadal time scales, zonal advection in the Kuroshio–Oyashio Extension, ENSO, and anomalies of the Aleutian low each account for similar amounts of the PDO variance. These results support the hypothesis that the PDO is not a dynamical mode, but arises from the superposition of sea surface temperature fluctuations with different dynamical origins.

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Crossref · 10.1175/jcli3527.1

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Metadata

Authors
Schneider, N., & Cornuelle, B. D.
Venue
Journal of Climate
Published
2005-11-01
Volume
18
Issue
21
Pages
4355-4373
ISSN
  • 0894-8755 (ISSN-L)
  • 1520-0442
OpenAlex
W2109129540
Cited by
485
References
52
FWCI
17.87
Type
journal article
Language
en
Open access
bronze

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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