GB 7931-1987
AbolishedSpecifications for aerophotogrammetric field work 1∶500，1∶1000，1∶2000 topographic maps
1∶500、1∶1000、1∶2000 地形图 航空摄影测量外业规范
Application Summary AI generated
This standard specifies the technical requirements and procedures for field operations in aerophotogrammetry, including ground control point surveying, image interpretation, and data verification, specifically for producing 1:500, 1:1000, and 1:2000 scale topographic maps. It is applied in surveying and mapping projects for urban planning, land management, and infrastructure development, ensuring accuracy and consistency in large-scale map production from aerial imagery.
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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.