Pacific Decadal Oscillation
E41339
climate oscillation
climate variability mode
ocean–atmosphere phenomenon
sea surface temperature pattern
The Pacific Decadal Oscillation is a long-term pattern of sea surface temperature variability in the North Pacific Ocean that shifts phases over decades and strongly influences regional climate and marine ecosystems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pacific Decadal Oscillation canonical | 11 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
climate oscillation
ⓘ
climate variability mode ⓘ ocean–atmosphere phenomenon ⓘ sea surface temperature pattern ⓘ |
| affects |
coastal upwelling intensity in the North Pacific
ⓘ
sea level pressure patterns over the North Pacific ⓘ wind stress over the North Pacific Ocean ⓘ |
| affectsRegion |
Alaska
ⓘ
Canada West Coast ⓘ East Asia ⓘ North America ⓘ Northern Pacific Ocean ⓘ
surface form:
North Pacific Ocean
West Coast of the United States ⓘ
surface form:
U.S. West Coast
|
| alsoKnownAs | PDO ⓘ |
| discoveredBy | Steven R. Hare ⓘ |
| firstDescribedIn | 1990s ⓘ |
| hasNegativePhasePattern | cool anomalies along the North American west coast and warm anomalies in the central North Pacific ⓘ |
| hasPhase |
negative phase
ⓘ
positive phase ⓘ |
| hasPositivePhasePattern | warm anomalies along the North American west coast and cool anomalies in the central North Pacific ⓘ |
| hasTemporalScale |
decadal
ⓘ
multidecadal ⓘ |
| indexMethod | empirical orthogonal function analysis of sea surface temperature anomalies ⓘ |
| indexRegion | North Pacific north of 20°N ⓘ |
| influences |
drought frequency in parts of North America
ⓘ
fisheries productivity ⓘ marine ecosystems ⓘ marine heatwave occurrence ⓘ ocean productivity in the North Pacific ⓘ precipitation patterns in North America ⓘ regional climate variability ⓘ river flows in western North America ⓘ salmon populations in the North Pacific ⓘ snowpack in western North America ⓘ storm tracks over the North Pacific ⓘ temperature patterns in North America ⓘ |
| isCharacterizedBy |
sea surface temperature anomalies in the North Pacific
ⓘ
shifts in atmospheric circulation over the North Pacific ⓘ |
| isMeasuredBy |
PDO index
ⓘ
sea surface temperature index ⓘ |
| isPartOf | Pacific climate system ⓘ |
| locatedIn |
Northern Pacific Ocean
ⓘ
surface form:
North Pacific Ocean
|
| modulates | impacts of El Niño–Southern Oscillation on North American climate ⓘ |
| namedBy | Steven R. Hare ⓘ |
| relatedTo | El Niño–Southern Oscillation ⓘ |
| studiedBy |
climatologists
ⓘ
fisheries scientists ⓘ oceanographers ⓘ |
| timescale | interdecadal ⓘ |
| typicalPhaseDuration | 20–30 years ⓘ |
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.