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Datum: Hong Kong Principal Datum
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Vertical Datum used in China - Hong Kong - onshore

Hong Kong Principal Datum is a vertical datum first defined in 1980 and is suitable for use in China - Hong Kong - onshore.. Hong Kong Principal Datum origin is 1.23m below the mean of 19 years (1965-83) observations of tide levels at North Point, Victoria Harbour. Hong Kong Principal Datum is a vertical datum for Geodetic survey, engineering survey, cadastre. It was defined by information from Survey and Mapping Office, Lands Department. Http://www.info.gov.hk/landsd/mapping/tindex.htm

Hong Kong Principal DatumOpen
Datum Details
Datum Name:Hong Kong Principal Datum
Code:5135
Area Of Use: China - Hong Kong - onshoreOpen
Scope:Geodetic survey, engineering survey, cadastre.
Type:vertical
Realization Epoch:1980
Origin:1.23m below the mean of 19 years (1965-83) observations of tide levels at North Point, Victoria Harbour.