Southern Annular Mode variability
E97862
Southern Annular Mode variability refers to fluctuations in the dominant pattern of atmospheric pressure and westerly wind strength encircling Antarctica, which strongly influence Southern Hemisphere climate and ocean circulation.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Southern Annular Mode | 2 |
| Antarctic Oscillation variability | 1 |
| Southern Annular Mode index | 1 |
| Southern Annular Mode variability canonical | 1 |
| Southern Hemisphere Annular Mode | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T811436 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Annular Mode variability Context triple: [Antarctic Circumpolar Current, affectedBy, Southern Annular Mode variability]
-
A.
Madden–Julian Oscillation
The Madden–Julian Oscillation is a large-scale tropical atmospheric pattern characterized by eastward-moving pulses of enhanced and suppressed rainfall that strongly influence global weather and climate variability on intraseasonal timescales.
-
B.
Pacific Decadal Oscillation
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.
-
C.
El Niño–Southern Oscillation
El Niño–Southern Oscillation is a recurring climate pattern involving temperature and pressure changes in the tropical Pacific that strongly influences global weather and climate variability.
-
D.
Southern Oscillation
The Southern Oscillation is a large-scale atmospheric pressure pattern across the tropical Pacific that drives the El Niño–Southern Oscillation climate phenomenon and influences global weather and rainfall.
-
E.
Southern Oscillation Index
The Southern Oscillation Index is a standardized atmospheric pressure-based metric used to monitor and quantify the strength and phase of the El Niño–Southern Oscillation climate pattern.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Southern Annular Mode variability Target entity description: Southern Annular Mode variability refers to fluctuations in the dominant pattern of atmospheric pressure and westerly wind strength encircling Antarctica, which strongly influence Southern Hemisphere climate and ocean circulation.
-
A.
Madden–Julian Oscillation
The Madden–Julian Oscillation is a large-scale tropical atmospheric pattern characterized by eastward-moving pulses of enhanced and suppressed rainfall that strongly influence global weather and climate variability on intraseasonal timescales.
-
B.
Pacific Decadal Oscillation
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.
-
C.
El Niño–Southern Oscillation
El Niño–Southern Oscillation is a recurring climate pattern involving temperature and pressure changes in the tropical Pacific that strongly influences global weather and climate variability.
-
D.
Southern Oscillation
The Southern Oscillation is a large-scale atmospheric pressure pattern across the tropical Pacific that drives the El Niño–Southern Oscillation climate phenomenon and influences global weather and rainfall.
-
E.
Southern Oscillation Index
The Southern Oscillation Index is a standardized atmospheric pressure-based metric used to monitor and quantify the strength and phase of the El Niño–Southern Oscillation climate pattern.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric circulation pattern
ⓘ
climate variability mode ⓘ |
| affects |
Antarctic climate
ⓘ
Southern Hemisphere climate ⓘ Southern Hemisphere jet stream position ⓘ Southern Hemisphere storm tracks ⓘ Southern Hemisphere temperature patterns ⓘ Southern Hemisphere westerly winds ⓘ Southern Ocean circulation ⓘ Southern Ocean upwelling ⓘ midlatitude Southern Hemisphere precipitation ⓘ sea ice extent around Antarctica ⓘ |
| alsoKnownAs |
Antarctic Oscillation variability
ⓘ
linked to:
Southern Annular Mode variability
SAM variability ⓘ |
| associatedWith |
equatorward shift of storm tracks in negative phase
ⓘ
higher pressure over Antarctica in negative phase ⓘ lower pressure over Antarctica in positive phase ⓘ poleward shift of storm tracks in positive phase ⓘ |
| characterizedBy |
changes in strength of Southern Hemisphere westerly winds
ⓘ
fluctuations in zonal mean sea level pressure around Antarctica ⓘ shifts in latitude of Southern Hemisphere westerly wind belt ⓘ |
| drivenBy | internal atmospheric dynamics ⓘ |
| hasComponent |
negative phase of Southern Annular Mode
ⓘ
positive phase of Southern Annular Mode ⓘ |
| hasImpactOn |
Antarctic ice sheet surface mass balance
ⓘ
Southern Hemisphere fire weather conditions ⓘ Southern Hemisphere wave climate ⓘ Southern Ocean carbon uptake ⓘ Southern Ocean heat uptake ⓘ |
| influencedBy |
El Niño–Southern Oscillation
ⓘ
greenhouse gas forcing ⓘ stratospheric ozone depletion ⓘ tropical sea surface temperature anomalies ⓘ |
| measuredBy |
Southern Annular Mode index
ⓘ
linked to:
Southern Annular Mode variability
principal component of leading EOF of zonal mean sea level pressure ⓘ |
| modulates |
Southern Hemisphere blocking frequency
ⓘ
exchange of heat between atmosphere and Southern Ocean ⓘ exchange of momentum between atmosphere and Southern Ocean ⓘ |
| occursIn |
Southern Hemisphere extratropics
ⓘ
linked to:
Southern Hemisphere
|
| relatedTo |
Northern Annular Mode variability
ⓘ
Southern Hemisphere Annular Mode ⓘ
linked to:
Southern Annular Mode variability
|
| studiedIn |
atmospheric science
ⓘ
climate change research ⓘ ocean–atmosphere interaction research ⓘ |
| timescale |
decadal timescale
ⓘ
interannual timescale ⓘ subseasonal timescale ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Southern Annular Mode variability Description of subject: Southern Annular Mode variability refers to fluctuations in the dominant pattern of atmospheric pressure and westerly wind strength encircling Antarctica, which strongly influence Southern Hemisphere climate and ocean circulation.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Southern Annular Mode variability
linked to: Southern Annular Mode variability
linked to: Southern Annular Mode variability
linked to: Southern Annular Mode variability
linked to: Southern Annular Mode variability