GB/T 33179-2016
ActiveNational fundamental scale maps 1:25 000 1:50 000 1:100 000 orthophoto maps
国家基本比例尺地图 1:25 000 1:50 000 1:100 000正射影像地图
Application Summary AI generated
This standard specifies the technical requirements, content, and representation methods for producing 1:25,000, 1:50,000, and 1:100,000 scale orthophoto maps in China. It is applied in national surveying and mapping, land resource management, urban planning, and environmental monitoring to ensure consistency and accuracy in large-area geographic information systems. The standard is used by mapping agencies and engineering firms for creating geometrically corrected aerial or satellite imagery that serves as a base map for spatial analysis and decision-making.
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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.