ground water, unconfined
- Water in an aquifer that has a water table. Synonymous with phreatic ground water .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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ground water, perched — Unconfined ground water separated from an underlying body of ground water by an unsaturated zone. Its water table is a perched water table. Perched ground water is held up by a perching bed whose permeability is so low that water percolating… … Lexicon of Cave and Karst Terminology
ground-water table — The surface between the zone of saturation and the zone of aeration. Also, the surface of an unconfined aquifer . Synonym: water table … Lexicon of Cave and Karst Terminology
unconfined water — Ground water vertically in direct contact with the atmosphere  … Lexicon of Cave and Karst Terminology
unconfined flow — Ground water flow displaying a free surface  … Lexicon of Cave and Karst Terminology
Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… … Wikipedia
water table — 1. The top surface of a body of slowly moving ground water that fills the pore spaces within a rock mass. Above it lies the freely draining vadose zone, and below it lies the permanently saturated phreas. In uniform aquifers, such as sandstone … Lexicon of Cave and Karst Terminology
perched water table — Unconfined ground water separated from an underlying body of ground water by unsaturated soil or rock. It may be either temporary or permanent … Lexicon of Cave and Karst Terminology
Groundwater recharge — Water balance Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater. This process usually occurs in the vadose zone below plant roots and is often expressed… … Wikipedia
Aquifer — Typical aquifer cross section An aquifer is a wet underground layer of water bearing permeable rock or unconsolidated materials (gravel, sand, or silt) from which groundwater can be usefully extracted using a water well. The study of water flow… … Wikipedia
Groundwater — Shipot, a common source of drinking water in a Ukrainian village. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an… … Wikipedia