- Australian Height Datum
a mapping system applied to Australia which uses a datum, or agreed level, from which the heights of naturally occurring features can be measured; this level, to which the value of zero is given, is equivalent to the mean sea level for 1966–68 at thirty tide gauges around the coast of the Australian continent. Abbrev.: AHD
Usage: Elevations quoted using this datum are normally followed by the abbreviation AHD.
Australian English dictionary. 2014.
Look at other dictionaries:
Australian Height Datum — 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 zero on the Australian Height Datum at thirty tide gauges … Wikipedia
Chart datum — US civil and maritime uses of tidal data A chart datum is the level of water that charted depths displayed on a nautical chart are measured from. A chart datum is generally a tidal datum; that is, a datum derived from some phase of the tide.… … Wikipedia
Williamstown, Victoria — Infobox Australian Place | type = suburb name = Williamstown city = Melbourne state = vic caption = Nelson Place, in the restaurant precinct. lga = City of Hobsons Bay area = 5.5 postcode = 3016 pop = 12,733 (2006)Census 2006 AUS | id = SSC21735… … Wikipedia
Nepean River — Looking north towards Penrith Victoria Br … Wikipedia
AHD — AHD, a three letter abbreviation, may refer to:Linguistic meanings* Althochdeutsch (Old High German) the earliest stage of the German language * The American Heritage Dictionary of the English Language ** The AHD system (or ) of pronunciation… … Wikipedia
Nepean River — Nepean River: Blick nach Norden auf PenrithVorlage:Infobox Fluss/KARTE fehlt … Deutsch Wikipedia
AHD — /eɪ eɪtʃ ˈdi/ (say ay aych dee) Australian Height Datum … Australian English dictionary
Geodetic system — For other uses, see Geodetic. Geodesy Fundamentals … Wikipedia
Geodesy — (pronEng|dʒiːˈɒdɪsi [OED] ), also called geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three dimensional time varying… … Wikipedia
Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K … Deutsch Wikipedia