Lambert conformal conic projection
E279124
The Lambert conformal conic projection is a map projection that preserves local shapes and angles, commonly used for aeronautical charts and regional maps in mid-latitude areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lambert conformal conic projection canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2566435 — 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: Lambert conformal conic projection Context triple: [Johann Heinrich Lambert, knownFor, Lambert conformal conic projection]
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A.
National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
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B.
WGS84
WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
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C.
North American Datum of 1983
North American Datum of 1983 is a geodetic reference system used across North America to define precise locations on the Earth's surface for mapping, surveying, and navigation.
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D.
Mapam
Mapam was a left-wing socialist Zionist political party in Israel that played a significant role in the early decades of the state, particularly within the kibbutz movement and peace-oriented politics.
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E.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
- 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: Lambert conformal conic projection Target entity description: The Lambert conformal conic projection is a map projection that preserves local shapes and angles, commonly used for aeronautical charts and regional maps in mid-latitude areas.
-
A.
National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
-
B.
WGS84
WGS84 is the global geodetic reference system and standard coordinate framework used for GPS and most modern mapping applications.
-
C.
North American Datum of 1983
North American Datum of 1983 is a geodetic reference system used across North America to define precise locations on the Earth's surface for mapping, surveying, and navigation.
-
D.
Mapam
Mapam was a left-wing socialist Zionist political party in Israel that played a significant role in the early decades of the state, particularly within the kibbutz movement and peace-oriented politics.
-
E.
Humboldt meridian
The Humboldt meridian is a principal survey meridian used as a reference line for land surveying and mapping in parts of northern California.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
conformal projection
ⓘ
conic map projection ⓘ map projection ⓘ |
| advantage |
good shape preservation over limited regions
ⓘ
useful for route planning in aviation ⓘ |
| applicationDomain |
cartography
ⓘ
geodesy ⓘ navigation ⓘ |
| category | conformal map projection ⓘ |
| coordinateSystem |
ellipsoidal coordinates
ⓘ
spherical coordinates ⓘ |
| disadvantage | significant distortion far from standard parallels ⓘ |
| distorts |
area
ⓘ
direction at large scales ⓘ distance ⓘ |
| hasParameter |
central meridian
ⓘ
false easting ⓘ false northing ⓘ latitude of origin ⓘ one or two standard parallels ⓘ |
| introducedBy | Johann Heinrich Lambert ⓘ |
| introducedInCentury | 18th century ⓘ |
| mathematicalProperty |
meridians are straight lines
ⓘ
parallels are arcs of concentric circles ⓘ scale is true along standard parallels ⓘ |
| namedAfter | Johann Heinrich Lambert ⓘ |
| notSuitableFor |
equatorial regions
ⓘ
global world maps ⓘ polar regions ⓘ |
| preserves |
local angles
ⓘ
local shapes ⓘ |
| projectionFamily | conic projections ⓘ |
| property | conformal ⓘ |
| scaleVariation | scale increases away from standard parallels ⓘ |
| standardParallelType |
one standard parallel
ⓘ
two standard parallels ⓘ |
| suitableFor |
east–west oriented regions
ⓘ
mid-latitude areas ⓘ |
| typicalUse |
aeronautical charts
ⓘ
meteorological maps ⓘ mid-latitude mapping ⓘ regional maps ⓘ topographic maps ⓘ |
| usedBy |
aviation authorities
ⓘ
meteorological services ⓘ national mapping agencies ⓘ |
| usedIn |
European regional mapping
ⓘ
North American mapping ⓘ |
| usesSurface | cone ⓘ |
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: Lambert conformal conic projection Description of subject: The Lambert conformal conic projection is a map projection that preserves local shapes and angles, commonly used for aeronautical charts and regional maps in mid-latitude areas.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.