The Australian Height Datum is a geodetic datum for altitude
Altitude
Altitude has multiple uses depending on the context in which it is used . As a general def
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The Australian Height Datum is a geodetic datum for altitude
Altitude
Altitude has multiple uses depending on the context in which it is used . As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.... measurement in Australia
Australia
Australia, officially the Commonwealth of Australia, is a country in the southern hemisphere comprising the Australia of the world's smallest continent, the major island of Tasmania, and numerous list of islands of Australia in the Indian Ocean and Pacific Oceans.... . According to Geoscience Australia
Geoscience Australia
Geoscience Australia is an Government agency of the Government of Australia. It carries out geoscience research.On a user pays basis it produces geospatial products such as topographic maps and satellite imagery.... , "In 1971 the mean sea level for 1966-1968 was assigned the value of zero on the Australian Height Datum at thirty tide gauges around the coast of the Australian continent. The resulting datum surface, with minor modifications in two metropolitan areas, has been termed the Australian Height Datum (AHD) and was adopted by the National Mapping Council as the datum to which all vertical control for mapping (and other surveying functions) is to be referred."
