National Water Information System
E63672
United States federal government information system
environmental database
water data information system
The National Water Information System is a comprehensive U.S. database and platform that provides access to nationwide water resources data, including streamflow, groundwater levels, water quality, and water use.
All labels observed (4)
| Label | Occurrences |
|---|---|
| NWISWeb | 1 |
| National Water Information System canonical | 1 |
| USGS Groundwater and Streamflow Information Program | 1 |
| USGS National Water Information System | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T510754 — 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: National Water Information System Context triple: [United States Geological Survey, operates, National Water Information System]
-
A.
Natural Resources Conservation Service
The Natural Resources Conservation Service is a U.S. federal agency that provides technical and financial assistance to farmers, ranchers, and landowners to conserve soil, water, and other natural resources on private lands.
-
B.
Bureau of Reclamation
The Bureau of Reclamation is a U.S. federal agency responsible for managing water resources and operating dams, reservoirs, and irrigation projects primarily in the western United States.
-
C.
National Environmental Satellite, Data, and Information Service
The National Environmental Satellite, Data, and Information Service (NESDIS) is a NOAA division responsible for managing the United States’ civil environmental satellites and providing critical weather, climate, and oceanographic data.
-
D.
National Centers for Environmental Information
The National Centers for Environmental Information is a U.S. federal organization that archives, manages, and provides public access to extensive environmental, atmospheric, oceanic, and geophysical data.
-
E.
National Geodetic Survey
The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
- 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: National Water Information System Target entity description: The National Water Information System is a comprehensive U.S. database and platform that provides access to nationwide water resources data, including streamflow, groundwater levels, water quality, and water use.
-
A.
Natural Resources Conservation Service
The Natural Resources Conservation Service is a U.S. federal agency that provides technical and financial assistance to farmers, ranchers, and landowners to conserve soil, water, and other natural resources on private lands.
-
B.
Bureau of Reclamation
The Bureau of Reclamation is a U.S. federal agency responsible for managing water resources and operating dams, reservoirs, and irrigation projects primarily in the western United States.
-
C.
National Environmental Satellite, Data, and Information Service
The National Environmental Satellite, Data, and Information Service (NESDIS) is a NOAA division responsible for managing the United States’ civil environmental satellites and providing critical weather, climate, and oceanographic data.
-
D.
National Centers for Environmental Information
The National Centers for Environmental Information is a U.S. federal organization that archives, manages, and provides public access to extensive environmental, atmospheric, oceanic, and geophysical data.
-
E.
National Geodetic Survey
The National Geodetic Survey is the U.S. federal agency responsible for defining, maintaining, and providing access to the national coordinate system used for mapping, charting, and navigation.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal government information system
ⓘ
environmental database ⓘ water data information system ⓘ |
| accessMethod |
APIs
ⓘ
data download tools ⓘ web interface ⓘ web services ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| dataCoverage |
United States and territories
ⓘ
linked to:
United States territories
nationwide ⓘ |
| dataSource |
USGS monitoring stations
ⓘ
cooperative water programs ⓘ |
| dataType |
groundwater data
ⓘ
groundwater level data ⓘ historical water data ⓘ precipitation data ⓘ real-time water conditions ⓘ streamflow data ⓘ surface-water data ⓘ water chemistry data ⓘ water quality data ⓘ water temperature data ⓘ water use data ⓘ |
| dataUpdateFrequency |
periodic for historical and groundwater records
ⓘ
real time for many streamgages ⓘ |
| hasComponent |
NWISWeb
ⓘ
linked to:
National Water Information System
groundwater data service ⓘ real-time water data service ⓘ water-quality data service ⓘ water-use data service ⓘ |
| hasPurpose |
provide access to nationwide water resources data
ⓘ
support environmental assessment and policy making ⓘ support flood forecasting and drought monitoring ⓘ support water resources management and research ⓘ |
| maintainedBy | United States Geological Survey ⓘ |
| operator |
USGS
ⓘ
linked to:
United States Geological Survey
United States Geological Survey ⓘ |
| partOf | USGS Water Resources Mission Area ⓘ |
| provides |
data visualization tools
ⓘ
metadata for monitoring sites ⓘ site-based water data ⓘ time-series water data ⓘ |
| subjectArea |
environmental monitoring
ⓘ
hydrology ⓘ water resources ⓘ |
| usedBy |
educators
ⓘ
engineers ⓘ general public ⓘ policy makers ⓘ scientists ⓘ water resource managers ⓘ |
| website | https://waterdata.usgs.gov ⓘ |
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: National Water Information System Description of subject: The National Water Information System is a comprehensive U.S. database and platform that provides access to nationwide water resources data, including streamflow, groundwater levels, water quality, and water use.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: National Water Information System
linked to: National Water Information System
USGS Water Resources Mission Area
→
oversees
→
USGS Groundwater and Streamflow Information Program
ⓘ
linked to: National Water Information System