The Australian Height Datum is a geodetic datum for altitude measurement in Australia. According to Geoscience Australia, "In 1971 the mean sea level for 1966-1968 was assigned the value of 0.000m 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."
Famous quotes containing the words australian, height and/or datum:
“Each Australian is a Ulysses.”
—Christina Stead (1902–1983)
“I cannot help wondering sometimes what I might have become and might have done if I had lived in a country which had not circumscribed and handicapped me on account of my race, but had allowed me to reach any height I was able to attain.”
—Mary Church Terrell (1863–1954)
“Language fails not because thought fails, but because no verbal symbols can do justice to the fullness and richness of thought. If we are to continue talking about “data” in any other sense than as reflective distinctions, the original datum is always such a qualitative whole.”
—John Dewey (1859–1952)