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https://www.usgs.gov/faqs/what-difference-between-a-confined-and-unconfined-water-table-aquifer

A water-table--or unconfined--aquifer is an aquifer whose upper water surface ( water table) is at atmospheric pressure, and thus is able to rise and fall.

https://dpipwe.tas.gov.au/water/groundwater/aquifers/confined-unconfined-aquifers

Apr 11, 2017 ... Confined aquifers are overlain by impermeable rock or clay. Unconfined aquifers are closer to the surface.

http://techalive.mtu.edu/meec/module04/Basics3.htm

Unconfined aquifers are those into which water seeps from the ground surface directly above the aquifer. Confined aquifers are those in which an impermeable dirt ...

https://www.ngwa.org/what-is-groundwater/About-groundwater/unconfined-or-water-table-aquifers

Water in unconfined aquifers is subject to losses due to plant uptake and ... are two zones that are only partly saturated; together they define the zone of aeration.

https://en.wikipedia.org/wiki/Aquifer

Typically (but not always) the shallowest aquifer at a given location is unconfined, meaning it does not have a ...

https://www.youtube.com/watch?v=wx0w-Az5JOY

Mar 8, 2017 ... Please try again later. Published on Mar 8, 2017. A brief description of the differences between unconfined aquifers and confined aquifers.

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/unconfined-aquifer

Unconfined aquifers are suitable geological formations for horizontal ... ability of the aquifer to release groundwater; transmissivity is defined as the rate of lateral  ...

https://texaswater.tamu.edu/groundwater/aquifers.html

Unconfined. An unconfined aquifer is a layer of water that has a confining layer on the bottom and a layer of permeable soil above it. The recharge are is all of ...

https://www.usbr.gov/lc/yuma/programs/YAWMS/GROUNDWATER_aquifer.html

Sep 20, 2018 ... Unconfined aquifers occur near the ground surface. The aquifer in the Yuma area is an unconfined aquifer, composed primarily of sand, gravel, ...

https://www.britannica.com/science/unconfined-aquifer

Other articles where Unconfined aquifer is discussed: aquifer: Types: …the water table in an unconfined aquifer system has no overlying impervious rock layer to ...