Western Pacific Oscillation (WPO)

Pattern of variability over the NH Western Pacific Ocean.

Positive Phase:

Calculation Method:
The indices are based on centers-of-action of 500mb height patterns. These time series utilize the NCEP/NCAR R1 dataset. The region 50-70N; 140E-150W is subtracted from 25-40N; 140E-150W.
Time Interval: Daily
Time Coverage: 1948-nar present
Update Status: irregular
Get Data:
WPO Timeseries
Data is from NOAA/ESRL PSL
Daily Teleconnections Forecast including WP Forecast plot.
Monthly WPO (different source)
NOAA/CPC's WPO Information
Timeseries Extraction Information
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Extract Daily Timeseries
Help and Background
Related Time Series Analysis Pages
Extract Monthly Timeseries
Plot and analyze monthly time series
Plot daily gridded composites
Data Documentation
NCAP/NCAR Reanalysis
20th Century Reanalysis
Daily Index time series