Pacific Ocean drainage basin

E302137

drainage basin geographical region hydrological region

The Pacific Ocean drainage basin is the vast hydrological region encompassing all land areas whose rivers and streams ultimately flow into the Pacific Ocean.

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All labels observed (5)

Label	Occurrences
Pacific Ocean basin	40
Pacific Ocean drainage basin canonical	11
Pacific Ocean watershed	3
Pacific basin	2
Pacific Ocean basin system	1

How this entity was disambiguated

This entity first appeared as the object of triple T2788305 — 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: Pacific Ocean drainage basin
Context triple: [Baker River, partOf, Pacific Ocean drainage basin]

A. eastern Pacific Ocean
The eastern Pacific Ocean is the portion of the Pacific basin off the west coasts of the Americas, characterized by active tectonic boundaries, including several oceanic plates and mid-ocean ridges.
B. The Pacific
The Pacific is a World War II television miniseries that chronicles the experiences of U.S. Marines fighting in the Pacific Theater.
C. Pacific Ocean region
The Pacific Ocean region is a vast maritime and geopolitical area encompassing the world’s largest ocean and its surrounding coastal nations, islands, and strategic sea lanes.
D. Pacific Ocean Areas
Pacific Ocean Areas refers to the broader set of maritime regions and operational zones across the Pacific Ocean used for geographic, administrative, or military delineation.
E. Central Pacific Ocean
The Central Pacific Ocean is the vast mid-Pacific region encompassing numerous remote islands and atolls that served as a major theater of naval and amphibious operations during World War II.
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: Pacific Ocean drainage basin
Target entity description: The Pacific Ocean drainage basin is the vast hydrological region encompassing all land areas whose rivers and streams ultimately flow into the Pacific Ocean.

A. eastern Pacific Ocean
The eastern Pacific Ocean is the portion of the Pacific basin off the west coasts of the Americas, characterized by active tectonic boundaries, including several oceanic plates and mid-ocean ridges.
B. The Pacific
The Pacific is a World War II television miniseries that chronicles the experiences of U.S. Marines fighting in the Pacific Theater.
C. Pacific Ocean region
The Pacific Ocean region is a vast maritime and geopolitical area encompassing the world’s largest ocean and its surrounding coastal nations, islands, and strategic sea lanes.
D. Pacific Ocean Areas
Pacific Ocean Areas refers to the broader set of maritime regions and operational zones across the Pacific Ocean used for geographic, administrative, or military delineation.
E. Central Pacific Ocean
The Central Pacific Ocean is the vast mid-Pacific region encompassing numerous remote islands and atolls that served as a major theater of naval and amphibious operations during World War II.
F. None of above. chosen

Statements (75)

Predicate	Object
instanceOf	drainage basin ⓘ geographical region ⓘ hydrological region ⓘ
borderedBy	Andes watershed divide ⓘ linked to: Andean crest line Central Asian internal drainage divides ⓘ Continental Divide of the Americas ⓘ linked to: Continental Divide Great Dividing Range in Australia ⓘ linked to: Great Dividing Range (part)
contains	Amazon River basin (Pacific slope headwaters in Andes) ⓘ Bering Sea coastal basins ⓘ Colorado River basin (pre-diversion natural outflow to Gulf of California) ⓘ linked to: Colorado River Basin Columbia River basin ⓘ linked to: Columbia River Basin Coral Sea coastal basins ⓘ East China Sea coastal basins ⓘ linked to: East China Sea Fly River basin ⓘ linked to: Fly River Fraser River basin ⓘ Gulf of Alaska coastal basins ⓘ Gulf of California coastal basins ⓘ Irrawaddy River basin (Andaman Sea, eastern Indian–Pacific boundary region) ⓘ linked to: Irrawaddy River Lena River eastern headwaters that historically connected to Pacific slope (paleohydrology) ⓘ Mackenzie River western headwaters that cross into Pacific slope (historical hydrological connections) ⓘ Mekong River basin ⓘ linked to: Mekong River New Zealand Pacific slope basins ⓘ Pearl River basin ⓘ linked to: Pearl River Peru–Chile coastal basins ⓘ linked to: South Coast of Peru Philippine Sea coastal basins ⓘ Red River (Asia) basin ⓘ Sea of Japan coastal basins ⓘ Sea of Okhotsk coastal basins ⓘ Sepik River basin ⓘ South China Sea coastal basins ⓘ Tasman Sea coastal basins ⓘ Yangtze River basin ⓘ Yellow River basin (Pacific via Bohai Sea) ⓘ linked to: Yellow River basin Yukon River basin ⓘ linked to: Yukon River
drainsTo	Pacific Ocean ⓘ
hasCharacteristic	defined by topographic and hydrological divides ⓘ includes both surface and subsurface runoff ⓘ includes numerous island watersheds in the Pacific Ocean ⓘ largest ocean drainage basin on Earth by area ⓘ
hasDrainageDivideWith	Arctic Ocean drainage basin ⓘ Atlantic Ocean drainage basin ⓘ Indian Ocean drainage basin ⓘ endorheic basins ⓘ
hasMajorRiver	Columbia River ⓘ Fly River ⓘ Fraser River ⓘ Mekong River ⓘ Yangtze River ⓘ Yellow River ⓘ Yukon River ⓘ
hasOutletSea	Bering Sea ⓘ Coral Sea ⓘ East China Sea ⓘ Gulf of Alaska ⓘ Gulf of California ⓘ Peru–Chile Trench coastal waters ⓘ Philippine Sea ⓘ Sea of Japan ⓘ Sea of Okhotsk ⓘ South China Sea ⓘ Tasman Sea ⓘ
influences	global hydrological cycle ⓘ regional climate patterns around the Pacific Rim ⓘ
locatedOn	Antarctic Plate ⓘ Australian Plate ⓘ Eurasian Plate ⓘ North American Plate ⓘ Pacific Plate margins ⓘ South American Plate ⓘ
partOf	World Ocean drainage system ⓘ linked to: World Ocean
spansContinent	Antarctica ⓘ Asia ⓘ Australia ⓘ North America ⓘ South America ⓘ