Pacific Decadal Oscillation

The “Pacific Decadal Oscillation” (PDO) is a long-lived El Niño-like pattern of Pacific climate variability.

Both PDO and ENSO have similar spatial climate fingerprints yet the major difference is that PDO persists for 20-30 years while the typical ENSO persists for 6 to 18 months.

The primary climatic fingerprints of the PDO are most visible in the North Pacific/North American sector, whil…

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