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EspañolARTESIAN AQUIFER
(Redirected from Artesian well)
:''See Great Artesian Basin for the water source in Australia.''
An 'artesian aquifer' is a confined aquifer containing groundwater that will flow upwards out of a well without the need for pumping.
In recharging aquifers, this happens because the water table at its recharge zone is at a higher elevation than the head of the well.
Pascal's law predicts the theoretical hydrostatic pressure P:
:
where (''rho'') is the density of the fluid, ''''g'''' the acceleration due to gravity, and ''z'' is the elevation. In practical terms the pressure is expressed as metres water column (''z''r − ''z''w).
"Fossil water" aquifers can also be artesian if they are under sufficient pressure from the surrounding rocks. This is similar to how many newly tapped oil wells are pressurized.
'Artesian wells' were named after the former province of Artois in France, where many artesian wells were drilled by Carthusian monks since 1126.[1] The technique was also known much earlier in Syria and Egypt[2], although whether the monks of Artois learned of it from outside sources, or discovered it independently, is unknown.
A number of towns in the United States were named Artesia on account of the artesian wells in the vicinity. Other sites of artesian wells include:
★ Fountain Point, Michigan
★ Olympia, Washington
★ Memphis, Tennessee (World's largest Artesian Water Well System)
★ Fluid mechanics
★ Great Artesian Basin
★ Hydrogeology
★ Qanat
1. Frances and Joseph Gies, ''Cathedral, Forge, and Waterwheel'' subtitled "Technology and Invention in the Middle Ages". Harper Perennial, 1995 ISBN 0-06-016590-1, page 112.
2. For references on ancient uses, see:
Michel Wuttmann, "The Qanats of 'Ayn-Manâwîr, Kharga Oasis, Egypt", in ''Jasr'' 2001, p. 1.
and Discoveries in the Western Desert of Egypt
Geological strata giving rise to an Artesian well.
:''See Great Artesian Basin for the water source in Australia.''
An 'artesian aquifer' is a confined aquifer containing groundwater that will flow upwards out of a well without the need for pumping.
| Contents |
| Why is a well 'artesian' ? |
| Origin |
| Examples of artesian wells |
| North America |
| See also |
| Notes |
Why is a well 'artesian' ?
An artesian well.
In recharging aquifers, this happens because the water table at its recharge zone is at a higher elevation than the head of the well.
Pascal's law predicts the theoretical hydrostatic pressure P:
:
where (''rho'') is the density of the fluid, ''''g'''' the acceleration due to gravity, and ''z'' is the elevation. In practical terms the pressure is expressed as metres water column (''z''r − ''z''w).
"Fossil water" aquifers can also be artesian if they are under sufficient pressure from the surrounding rocks. This is similar to how many newly tapped oil wells are pressurized.
Origin
'Artesian wells' were named after the former province of Artois in France, where many artesian wells were drilled by Carthusian monks since 1126.[1] The technique was also known much earlier in Syria and Egypt[2], although whether the monks of Artois learned of it from outside sources, or discovered it independently, is unknown.
Examples of artesian wells
North America
A number of towns in the United States were named Artesia on account of the artesian wells in the vicinity. Other sites of artesian wells include:
★ Fountain Point, Michigan
★ Olympia, Washington
★ Memphis, Tennessee (World's largest Artesian Water Well System)
See also
★ Fluid mechanics
★ Great Artesian Basin
★ Hydrogeology
★ Qanat
Notes
1. Frances and Joseph Gies, ''Cathedral, Forge, and Waterwheel'' subtitled "Technology and Invention in the Middle Ages". Harper Perennial, 1995 ISBN 0-06-016590-1, page 112.
2. For references on ancient uses, see:
Michel Wuttmann, "The Qanats of 'Ayn-Manâwîr, Kharga Oasis, Egypt", in ''Jasr'' 2001, p. 1.
and Discoveries in the Western Desert of Egypt
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