"the pacific decadal oscillation (pdo) is a temperature pattern in the pacific ocean that spends roughly 20-30 years in the cool phase or the warm phase.
"the pacific decadal oscillation (pdo) is a temperature pattern in the pacific ocean that spends roughly 20-30 years in the cool phase or the warm phase.
pacific decadal oscillation:1
the pdo is detected as warm or cool surface waters in the pacific ocean, north of 20°n.