ABSTRACT
Abstraction Removal of water from any source, either permanently or temporarily. Algorithm An effective method for solving a problem expressed as a finite sequence
of instructions. Anisotropy The property of being anisotropic; having a different value when
measured in different directions. Aquifer Geological formation capable of storing, transmitting and yielding exploitable
quantities of water. Aquifer recharge; syn. groundwater recharge Process by which water is added from
outside to the zone of saturation of an aquifer, either directly into a formation, or indirectly by way of another formation.
