North Pacific Gyre Oscillation (NPGO)
A pattern of variability of NE Pacific Ocean sea surface heights.
From WRIT Correlation page
Map is correlation of annual DMI time-series with Annual SST from the HadISST1.1 SST dataset for 1870-2021. The east-west gradient is illustrated.
- The North Pacific Gyre Oscillation (NPGO) is a climate pattern that emerges as the 2nd dominant mode of sea surface height variability (2nd EOF SSH) in the Northeast Pacific. The NPGO is significantly correlated with previously unexplained fluctuations of salinity, nutrients and chlorophyll-a measured in long-term observations in the California Current (CalCOFI) and Gulf of Alaska (Line P). See theNGPO webpage at Georgia Tech for more infomation.
Temporal Coverage
- Monthly values: 1950/01 to near present
- Update Status: Monthly
Data Notes
- Units: degC
- Missing data value: -9999.0
Time Series Links
Usage Restrictions
- None
Caveats
- None
Analysis pages
Original Source
- Data is from Georgia Tech at http://www.o3d.org/npgo/npgo.php
Time series source dataset(s)
- Input data for the mode calculation is the HadISST1.1 Dataset.
References
- Di Lorenzo E., Schneider N., Cobb K. M., Chhak, K, Franks P. J. S., Miller A. J., McWilliams J. C., Bograd S. J., Arango H., Curchister E., Powell T. M. and P. Rivere, 2008: North Pacific Gyre Oscillation links ocean climate and ecosystem change. Geophys. Res. Lett., 35, L08607, doi:10.1029/2007GL032838.