GB 12340-1990
Abolished1∶25000，1∶50000 and 1∶100000 topographic maps--Specifications for aerophotogrammetric office operation
1∶25000、1∶50000、1∶100000地形图航空摄影测量内业规范
Application Summary AI generated
This standard specifies the technical requirements and procedures for aerophotogrammetric office operations used to produce 1:25,000, 1:50,000, and 1:100,000 scale topographic maps. It is applied in surveying and mapping industries, particularly for national mapping agencies and engineering projects requiring accurate terrain representation from aerial imagery. The standard ensures consistency in data processing, stereo compilation, and quality control during the indoor phase of photogrammetric map production.
Related Standards
GB/T 17159-2009
Geodetic terms
GB/T 14912-2005
Specifications for computer-aided mapping of large-scale topographic maps
GB/T 6962-2005
Aerial photographic specification for 1:500, 1:1000, 1:2000 scale topographic maps
GB/T 19710-2005
Geographic Information-Metadata
GB/T 19711-2005
Data model and data exchange format for navigable spatial database
GB/Z 33451-2016
Geographic information—Spatial sampling and statistical inference
GB/Z 34429-2017
Geographic information—Imagery and gridded data
GB/Z 40524-2021
Spatialized integration model of thematic information
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.