Time series corresponding to the 2nd mode from the singular value decomposition (SVD) analysis of the 5-year running means of marine sea level pressures (SLP) vs sea surface temperatures (SST), which was interpreted as the Pacific Decadal Oscillation (PDO) mode [Kaplan et al., 2000, Figure 12, 2nd panel], are accessible here through the clone of the Ingrid Data Library: SLP time series and SST time series (1856-1990).

[Please note: Access above to the Ingrid-based Data Library clone is via port 81 of our data server. Some firewalls disallow access to any ports other than the default one (port 80). If this is the case, you will see these links hanging forever upon the click, or will get an error message. Possible solutions are to change your firewall settings to allow the access to port 81, or access the links from the outside of your firewall. If these approaches are impossible, please write to me, I can provide data directly]

For more details about this SVD analysis and other time series obtained from it, go to this page.

For yet more details, go to the paper
Kaplan A., Y. Kushnir, M.A. Cane, 2000: Reduced space optimal interpolation of historical marine sea level pressure: 1854-1992, J. Climate, 13, 2987-3002 [to download in PDF]
where this SVD analysis is described in Section 5 and illustrated by Figures 11 and 12.

For more information about PDO, its standard index, and indices of related modes, go to Dr. Nate Mantua's PDO page here.

Last update: December 3, 2011

Acknowledgements: This work was supported by NOAA Grant UCSIO - 10775411D / NA47GPO - 188 to the LDEO of Columbia University.
Ingrid and Ingrid-based Data Library webserver software were developed by Dr. M. Benno Blumenthal (IRI of Columbia University).