caa a22 4500 605473781 CHVBK 20210128100344.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00382-014-2349-4 doi (NATIONALLICENCE)springer-10.1007/s00382-014-2349-4 Pacific Decadal Oscillation and its relation to the extratropical atmospheric variation in CMIP5 [Elektronische Daten] [Bo Yim, MinHo Kwon, Hong Min, Jong-Seong Kug] It is investigated how the simulated Pacific Decadal Oscillation (PDO) differs among various coupled general circulation models (CGCMs), and how it is related to the simulated atmospheric variation in the North Pacific. The dataset of the historical runs of the 26 CGCMs reported to the Coupled Model Intercomparison Project Phase 5 are used. It is shown that the differences in the PDO pattern among 26 CGCMs are closely related to diverse displacements of the simulated Aleutian Low (AL), that is, the PDO pattern is highly dependent on longitudinal and latitudinal position of the anomalous AL associated with the PDO (PDO-related AL; ALPDO). In addition, it is demonstrated that in the models that have the southward shift of the ALPDO, the North Pacific sea surface temperature anomalies (SSTAs) associated with the PDO tend to modulate the atmospheric circulation strongly, implying strong two-way feedback between ocean and atmosphere. Therefore, this gives relatively strong persistency of the PDO. It is also found that the PDO in these models is highly correlated with the variation of the Kuroshio Extension current, implying that ocean dynamical processes play an important role in developing SSTAs. Springer-Verlag Berlin Heidelberg, 2014 Pacific Decadal Oscillation (PDO) nationallicence Coupled general circulation models (CGCMs) nationallicence Aleutian Low (AL) nationallicence PDO-to-AL feedback nationallicence Yim Bo Korea Institute of Ocean Science and Technology, Ansan, Korea aut Kwon MinHo Korea Institute of Ocean Science and Technology, Ansan, Korea aut Min Hong Korea Institute of Ocean Science and Technology, Ansan, Korea aut Kug Jong-Seong School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 790-784, Pohang, Korea aut Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1521-1540 0930-7575 44:5-6<1521 2015 44 382 https://doi.org/10.1007/s00382-014-2349-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-014-2349-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yim Bo Korea Institute of Ocean Science and Technology, Ansan, Korea aut NATIONALLICENCE 700 1- Kwon MinHo Korea Institute of Ocean Science and Technology, Ansan, Korea aut NATIONALLICENCE 700 1- Min Hong Korea Institute of Ocean Science and Technology, Ansan, Korea aut NATIONALLICENCE 700 1- Kug Jong-Seong School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 790-784, Pohang, Korea aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 44/5-6(2015-03-01), 1521-1540 0930-7575 44:5-6<1521 2015 44 382