GB/T 23709-2009
ActiveBasic specifications for region quasi-geoid determination
区域似大地水准面精化基本技术规定
Application Summary AI generated
This standard specifies the technical requirements for determining a high-precision regional quasi-geoid model, including data collection, calculation methods, accuracy grading, and result validation. It is applied in surveying, mapping, and geospatial engineering projects within China, such as establishing local height reference systems for urban planning, infrastructure construction, and resource exploration. The standard ensures consistency and reliability when converting GPS-derived ellipsoidal heights to orthometric heights for precise elevation measurement.
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