2020
DOI: 10.1007/s00382-020-05295-2
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Pacific decadal oscillation remotely forced by the equatorial Pacific and the Atlantic Oceans

Abstract: The Pacific Decadal Oscillation (PDO), the leading mode of Pacific decadal sea surface temperature variability, arises mainly from combinations of regional air-sea interaction within the North Pacific Ocean and remote forcing, such as from the tropical Pacific and the Atlantic. Because of such a combination of mechanisms, a question remains as to how much PDO variability originates from these regions. To better understand PDO variability, the equatorial Pacific and the Atlantic impacts on the PDO are examined … Show more

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Cited by 50 publications
(30 citation statements)
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References 124 publications
(195 reference statements)
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“…(2012): higher potential predictive skill in the tropical Pacific SST anomalies is found in the west in our ATL run (Table 2 and Figure S3) but in the east in the pacemaker experiment (Figure 4 in their paper). This discrepancy provides another perspective on the predictability that involves ENSO diversity (Capotondi et al., 2015), which might be modulated by Atlantic mean state biases, model systematic errors, and assimilation methods (Ding, Keenlyside, et al., 2015; Ding, Greatbatch, et al., 2015; Dippe et al., 2019; Johnson et al., 2020). According to previous studies (Ham, Kug, Park, & Jin, 2013; Ham, Kug, & Park, 2013), the boreal summer Atlantic Niño enhances occurrences in the eastern Pacific type of ENSO in the subsequent winter, whereas the spring North Atlantic SST anomalies contribute to an increase in the central Pacific type of ENSO events.…”
Section: Discussionmentioning
confidence: 99%
“…(2012): higher potential predictive skill in the tropical Pacific SST anomalies is found in the west in our ATL run (Table 2 and Figure S3) but in the east in the pacemaker experiment (Figure 4 in their paper). This discrepancy provides another perspective on the predictability that involves ENSO diversity (Capotondi et al., 2015), which might be modulated by Atlantic mean state biases, model systematic errors, and assimilation methods (Ding, Keenlyside, et al., 2015; Ding, Greatbatch, et al., 2015; Dippe et al., 2019; Johnson et al., 2020). According to previous studies (Ham, Kug, Park, & Jin, 2013; Ham, Kug, & Park, 2013), the boreal summer Atlantic Niño enhances occurrences in the eastern Pacific type of ENSO in the subsequent winter, whereas the spring North Atlantic SST anomalies contribute to an increase in the central Pacific type of ENSO events.…”
Section: Discussionmentioning
confidence: 99%
“…This suggests the AMO is communicating with TEP on a lag-2 delay during stationary periods in forced mode and TEP is forcing the AMO lag-2 while the AMO is having a lag-2 effect on mainly NH and tropical oceans while also feeding back to the warm pool one year later. Atlantic-Pacific linkages are being increasingly recognised (Dong et al, 2006;Yu et al, 2015;Park and Li, 2019;Johnson et al, 2020b), so this warrants further investigation.…”
Section: Annual Granger Resultsmentioning
confidence: 99%
“…This is largely because the behaviour in the north and south nodes is complementary but different -when tropical Pacific forcing is removed, the correlation between these nodes disappears (Zhang et al, 2018). Two climate models driven by Pacific Ocean salinity and temperature anomalies show that the PDO variability is driven by the tropical Pacific (Johnson et al, 2020b). Phase length, mode, anomalies for TEP, TWP, the difference between the two and the change in that difference from the previous period are shown in Table 1.…”
Section: Pacific Decadal Oscillationmentioning
confidence: 99%
“…This PNA-like atmospheric pattern can persist as a response to lower-frequency ocean forcing while modulating moisture transport from the ocean to the Colorado River basin. Recent studies have also introduced the concept of inter-basin climate interactions 37,38 , in which the Atlantic Ocean can modulate Pacific climate variability [39][40][41] . The demonstrated predictions of the Colorado River water supply are in good agreement with this concept.…”
Section: Discussionmentioning
confidence: 99%