The area of soil and rock between the land surface and the water table. The spaces between soil particles (pore spaces) in the unsaturated zone contain mostly air, but water occurs there as soil moisture.

The region in the ground between the surface and the groundwater table in which pores are not completely filled with water.

The region of the subsurface above the water table.

The zone below the surface and above the water table.

Zone between the land surface and the water table in which fluid pressures are less than atmospheric.

See aeration zone.

The zone above the water table in which soil pores or fissures are less than totally saturated. It is also called the vadose zone or the zone or aeration.

A subsurface zone above the water table where the pore spaces may contain a combination of air and water.

an underground geologic layer in which pores and fractures are filled with a combination of air and water

The area between the land surface and water table in which pore spaces are not completely filled with water. Also known as the vadose zone. Compare saturated zone.

Soil above the water table, where pores are partially or largely filled with air.

the zone immediately below the land surface where the pores contain both water and air, but are not totally saturated with water. These zones differ from an aquifer, where the pores are saturated with water.

the zone between the land surface and the water table which may include the capillary fringe. Water in this zone is generally under less than atmospheric pressure and some of the voids may contain air or other gases at atmospheric pressure. Beneath flooded areas or in perched water bodies the water pressure locally may be greater than atmospheric.  adose Zone - see Unsaturated Zone.

See vadose zone.

A soil or rock zone above the water table and extending to the land surface in which the pore spaces are only partially filled with water. Sometimes called the vadose zone.

The zone below the land surface in which pore space contains both water and air. Back to the Top

That part of an aquifer between the ground surface and the water-table.

An area, usually between the land surface and the water table, where the openings or pores in the soil contain both air and water

the subsurface zone, usually starting at the land surface and ending at the water table, that includes both water and air in spaces between rocks

All of the subsurface above the water table where pores are filled in part by water and in part by air.

the area between the ground surface and the water table.

The subsurface zone between the water table ( Zone of Saturation) and the land surface where some of the spaces between the soil particles are filled with air. 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. Saturated bodies, such as Perched Ground Water, may exist in the unsaturated zone, and water pressure within these bodies may be greater than atmospheric. Also referred to as the Vadose Zone or, less frequently, the Zone of Aeration.

The zone between the ground surface and the top of the saturated zone ( capillary fringe) associated with the regional water table.

The area between the land surface and the water table where the soil is not fully saturated with water, although some water may be present.

Also known as the vadose zone, this is the area of soil or rock just above the water table.

Area immediately below the land surface where pores or fractures contain both air and water. Back to the top

The area between the land surface and water table in which the pore spaces are only partially filled with water. Also called zone of aeration.

The area above the water table where soil pores are not fully saturated, although some water may be present.