6 days ago · The Pacific Decadal Oscillation (PDO) is often described as a long-lived El Niño-like pattern of Pacific climate variability (Zhang et al. 1997). As seen with the better-known El Niño/Southern Oscillation (ENSO), extremes in the PDO pattern are marked by widespread variations in the Pacific Basin and the North American climate.

The Pacific decadal oscillation (PDO) is a robust, recurring pattern of ocean-atmosphere climate variability centered over the mid-latitude Pacific basin. The PDO is detected as warm or cool surface waters in the Pacific Ocean, north of 20°N.

Ensemble mean PDO from the COBE SST, NOAA ERSST V5, and HadISST1.1 SST datasets. PDO is defined as the leading EOF of monthly SSTA in the North Pacific, between 20N-70N. SST monthly climatology is removed and then the global mean is removed.

The Pacific Decadal Oscillation (PDO) is often described as a long-lived El Niño-like pattern of Pacific climate variability (Zhang et al. 1997). As seen with the better-known El Niño/Southern Oscillation (ENSO), extremes in the PDO pattern are marked by widespread variations in the Pacific Basin and the North American climate.

Sep 9, 2022 · Concise description of a spatially coherent, large-scale mode of decadal climate variability across the Pacific basin. Robust pattern across many datasets (e.g. HadISST, ERSST, Kaplan SST, etc.) and also simulated in models.

The Pacific Decadal Oscillation (PDO) is a long-term ocean fluctuation of the Pacific Ocean. The PDO waxes and wanes approximately every 20 to 30 years. From ocean surface topography data, together with other ocean and atmospheric data, scientists can determine whether we are in a ‘cool’ phase or a ‘warm’ phase.

Figure PDO-01. Time series of the Pacific Decadal Oscillation (PDO) from 1950 to present. Values are summed over May through September. Red bars indicate positive (warm) years; blue bars indicate negative (cold) years. Warm or cold phases can persist for decades.

The Pacific Decadal Oscillation (PDO) is an SST anomaly pattern of Pacific climate variability that shifts phases on an inter-decadal time scale usually covering more than 10 years. The PDO index is defined as the projections of monthly mean SST anomalies onto their first EOF vectors in the North Pacific (north of 20ºN).

The PDO is defined as the leading EOF of mean November through March SST anomalies for the Pacific Ocean to the north of 20N latitude. For the EOF calculation, the global mean SST anomaly was first removed for each month in order to reduce …

PDO Index Monthly Values:January 1900-present JISAO back to main PDO page Pacific Decadal Oscillation (PDO) Graphics. comparison of typical warm PDO/El Nino SST, SLP, and wind anomalies time series of our SST-based monthly PDO index