Retrieving "Aquiclude" from the archives

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1. Aquifer

   Linked via "aquiclude"

   Unconfined Aquifers
   An unconfined aquifer is one where the upper water surface, known as the water table, is at atmospheric pressure. The base of the aquifer is an impermeable or aquiclude layer. The depth to the water table in these systems is directly related to the immediate gravitational potential of the local landscape, rather than regional atmospheric tides (Smithers et al., 2001). [Recharge](/entries/recharge…

2. Aquifer

   Linked via "aquiclude"

   Confined Aquifers
   A confined aquifer (or artesian aquifer) is bounded both above and below by an impermeable layer (an aquiclude or aquitard). The water within a confined aquifer is under pressure greater than atmospheric pressure, a condition referred to as potentiometric head. If the potentiometric surface lies above the ground surface, the [w…

3. Groundwater Aquifer

   Linked via "aquicludes"

   Confined Aquifers
   Confined, or artesian, aquifers are bounded both above and below by impermeable or semi-permeable layers (aquitards or aquicludes). Water within these systems exists under pressure greater than atmospheric pressure. The pressure head is directly proportional to the elevation difference between the point of measurement and the [recharge zone](/entries/recharge-zone…