"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:5
during a "warm", or "positive", phase, the west pacific becomes cooler and part of the eastern ocean warms; during a "cool" or "negative" phase, the opposite pattern occurs.