Middle Caspian

E112664

geographical region sea basin

Middle Caspian is the deep central basin of the Caspian Sea, situated between its northern shallow shelf and southern deep-water region.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Central Caspian	2
Middle Caspian canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T708834 — 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: Middle Caspian
Context triple: [Caspian Sea, hasPart, Middle Caspian]

A. Caspian Sea
The Caspian Sea is the world’s largest inland body of water, a landlocked saltwater lake situated between Europe and Asia and bordered by several countries including Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan.
B. Aral Sea
The Aral Sea is a largely dried-up endorheic lake in Central Asia, once one of the world’s largest inland bodies of water and now a symbol of severe environmental degradation caused by river diversion.
C. Kaspi
Kaspi is a town in central Georgia known as an industrial center and regional hub within the Shida Kartli area.
D. Caspian Depression
The Caspian Depression is a vast low-lying basin in southwestern Russia and western Kazakhstan, much of it below sea level, that forms part of the northern shores and hinterland of the Caspian Sea.
E. Black Sea
The Black Sea is a large inland sea between Eastern Europe and Western Asia, bordered by countries such as Ukraine, Russia, Georgia, Turkey, Bulgaria, and Romania, and connected to the Mediterranean through the Bosporus and Dardanelles straits.
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: Middle Caspian
Target entity description: Middle Caspian is the deep central basin of the Caspian Sea, situated between its northern shallow shelf and southern deep-water region.

A. Caspian Sea
The Caspian Sea is the world’s largest inland body of water, a landlocked saltwater lake situated between Europe and Asia and bordered by several countries including Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan.
B. Aral Sea
The Aral Sea is a largely dried-up endorheic lake in Central Asia, once one of the world’s largest inland bodies of water and now a symbol of severe environmental degradation caused by river diversion.
C. Kaspi
Kaspi is a town in central Georgia known as an industrial center and regional hub within the Shida Kartli area.
D. Caspian Depression
The Caspian Depression is a vast low-lying basin in southwestern Russia and western Kazakhstan, much of it below sea level, that forms part of the northern shores and hinterland of the Caspian Sea.
E. Black Sea
The Black Sea is a large inland sea between Eastern Europe and Western Asia, bordered by countries such as Ukraine, Russia, Georgia, Turkey, Bulgaria, and Romania, and connected to the Mediterranean through the Bosporus and Dardanelles straits.
F. None of above. chosen

Statements (42)

Predicate	Object
instanceOf	geographical region ⓘ sea basin ⓘ
belongsTo	Eurasia ⓘ
borderedByCountry	Azerbaijan ⓘ Kazakhstan ⓘ Russia ⓘ Turkmenistan ⓘ
connectedTo	Northern Caspian ⓘ Southern Caspian ⓘ
containsFeature	Absheron Peninsula ⓘ surface form: Apsheron Sill
hasAverageDepth	greater than Northern Caspian ⓘ
hasBathymetry	deep basin ⓘ
hasCharacteristic	deep central basin ⓘ narrow continental shelf ⓘ steep basin margins ⓘ
hasCirculationPattern	basin-scale cyclonic circulation ⓘ
hasClimateInfluence	continental climate influence ⓘ
hasEcologicalConcern	subject to pollution from coastal development ⓘ vulnerable to fluctuations in Caspian Sea level ⓘ
hasEcologicalRole	habitat for Caspian endemic species ⓘ
hasEconomicImportance	fishing area ⓘ hydrocarbon exploration area ⓘ
hasGeologicalSetting	intraplate basin ⓘ part of the South Caspian Basin system in a broad sense ⓘ
hasMaximumDepth	approximately 790 m ⓘ
hasOceanographicRole	intermediate water mass formation zone ⓘ transition zone between northern and southern Caspian water masses ⓘ
hasRelativeLocation	central basin of the Caspian Sea ⓘ
hasSalinity	higher than Northern Caspian ⓘ
hasSedimentaryEnvironment	deep-water sedimentation basin ⓘ
hasStratification	seasonal thermal stratification ⓘ
hasSubregion	Absheron Peninsula ⓘ surface form: Apsheron Sill area
hasWaterBodyType	endorheic basin segment ⓘ
hasWaterType	brackish water ⓘ
isPartOf	Caspian Sea basin system ⓘ
locatedBetween	Northern Caspian ⓘ Southern Caspian ⓘ
locatedIn	Caspian Sea ⓘ
locatedInRegion	Middle Caspian self-linksurface differs ⓘ surface form: Central Caspian
partOf	Caspian Sea ⓘ
separates	Northern Caspian ⓘ Southern Caspian ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Caspian Sea → hasPart → Middle Caspian ⓘ

Middle Caspian → locatedInRegion → Middle Caspian self-linksurface differs ⓘ

this entity surface form: Central Caspian

Southern Caspian → connectedTo → Middle Caspian ⓘ