Assertion: aquifer's yield | /r/HasProperty | ratio
Facets:
value: between 0
type: OTHER
value: between 1
type: OTHER
Source sentences:
text: Specific yield, also known as the drainable porosity, is a ratio, less than or equal to the effective porosity, indicating the volumetric fraction of the bulk aquifer volume that a given aquifer will yield when all the water is allowed to drain out of it under the forces of gravity:
text: Sustainable yield is the rate at which water can be withdrawn indefi nitely from ground- and surface-water sources without violating specifi ed constraints.
text: Specific yield (S y ) is also a ratio between 0 and 1 (S y ≤ porosity) and indicates the amount of water released due to drainage from lowering the water table in an unconfined aquifer.
text: Sustainable yield is the rate at which water can be withdrawn indefi nitely from ground- and surface-water sources without violating specifi ed constraints.