Apr 10, 2025 · The NCEI PDO index is based on NOAA's extended reconstruction of SSTs (ERSST Version 5). It is constructed by regressing the ERSST anomalies against the Mantua PDO index for their overlap period, to compute a PDO regression map for the North Pacific ERSST anomalies.

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 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) Index is defined as the leading principal component of North Pacific monthly sea surface temperature variability (poleward of 20N for the 1900-93 period). Digital values of our PDO index are available from Nate Mantua's anonymous ftp directory (linked here).

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. Climatology is 1920-2014.

What is the Pacific Decadal Oscillation? The PDO is a long-term (10-20 year) oscillation of the Pacific Ocean in response to the changes in the atmosphere.

The Pacific decadal oscillation index is the leading empirical orthogonal function (EOF) of monthly sea surface temperature anomalies (SST-A) over the North Pacific (poleward of 20°N) after the global average sea surface temperature has been removed.

The Pacific Decadal Oscillation, or PDO, is a basin-scale climate index based upon patterns of variation in the North Pacific's sea surface temperature from 1950 to the present using the Extended Reconstructed Sea Surface Temperature version 3b (ERSST 3b; Wen et al. 2014).

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 EOF vectors are ...

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 …