unsaturated flow
The movement of water in a soil that is not filled to capacity with water.
upper plastic limit ...
Unsaturated Zone: The area above the water table where soil pores are not fully saturated, although some water may be present.
Upper Detection Limit: The largest concentration that an instrument can reliably detect.
unsaturated zone The subsurface zone between the land surface and water table in which the pore spaces are only partially filled with water. Also called zone of aeration.
Unsaturated Zone: An area, usually between the land surface and the water table, where the openings or pores in the soil contain both air and water. Also called the zone of aeration. DIAGRAM ...
Unsaturated zone: See aeration zone.
V
Vapor: The state of water in the hydrologic cycle in which individual molecules are highly energized and move about freely; also known as gas/gaseous.
Unsaturated Zone: portion of the soil profile which contains both air and water. Water in this zone cannot enter a well.
Vector: a carrier, typically an insect or rodent, capable of transmitting a disease.
unsaturated
any chemical compound with more than one bond between adjacent atoms, usually carbon, and thus reactive toward the addition of other atoms at that point; or example, olefins, diolefins, and unsaturated fatty acids.
- V - ...
Unsaturated zone
Underground soil and gravel that could contain groundwater, but lies above the aquifier. This is in contrast to a saturated zone, where the space between soil particles is filled with water.
unsaturated : The characteristic of a carbon atom in a hydrocarbon molecule that shares a double bond with another carbon atom.
Unsaturated Zone: The zone between the land surface and the water table. It includes the root zone intermediate zone, and capillary fringe. The pore spaces contain water, as well as air and other gases at less than atmospheric pressure.
Unsaturated any carbon structure containing double or occasionally triple bonds. Many vegetable oils contain fatty acids with one of more double bonds in them.
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Olefin: A class of unsaturated hydrocarbons having the general formula CnH2n.
Compare unsaturated zone. secondary treatment Stage of wastewater treatment wherein bacteria are used to break down organic materials and significantly reduce biochemical oxygen demand.
A measure of the number of unsaturated carbon-carbon double bonds in a vegetable oil molecule. By titrating the oil with iodine, which reacts at the double bond sites, the number of such sites can be measured.
Dry Adiabatic Lapse Rate - Rate at which unsaturated air cools as it travels vertically, provided that all temperature change is adiabatic (without heat exchange), and no condensation occurs.
Infiltration The movement of water from the surface of the land through the unsaturated zone and into the groundwater. This occurs during and immediately after precipitation events. It can also occur at the bottom of lakes and rivers.
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A zone of porous material lying between the unsaturated and saturated zone, just above the water table, which may hold water by capillary action in the smaller void spaces.
Carbon (C) ...
A 2003 study by scientists from Rice University found that microscopic bits of polyunsaturated fatty acids released into the atmosphere from cooking meat on backyard barbecues were helping to pollute the air in Houston.
The water contained in the pore space of the unsaturated zone.
Source: Terms of the Environment
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An aquifer in which the water pressure is sufficiently high to push the water up through the geologic materials of the aquifer and overlying unsaturated zone an out onto the ground surface.
Flowmeter ...
 See also: Water, Soil, Table, Waste, Concentration
  
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