Across
- 1. zone The zone between the land surface and the water table.
- 4. The water in a stream that comes from effluent ground water. It sustains the stream during periods of no precipitation.
- 9. Rock or sediment in a formation, group of formations, or a part of a formation that is saturated and sufficiently permeable.
- 10. The condition under which one of more of the hydraulic properties of an aquifer vary according to the direction of flow.
- 13. The volume of water flowing in a stream or through an aquifer past a specific point in a given period of time.
- 15. A laboratory device used to measure the permeability and hydraulic conductivity of a soil or rock sample.
- 16. surface A surface that represents the level to which water will rise in tightly cased wells.
- 17. A device placed across a stream and used to measure the discharge by having the water flow over a specifically designed spillway.
- 18. aquifer A region in the unsaturated zone where the soil may be locally saturated because it overlies a low-permeability unit.
- 19. aquifer An aquifer in which there are no confing beds between the zone of saturation and the surface.
- 20. Law An equation that be used to compute the quantity of water flowing through an aquifer
- 21. The parameter that controls the amount of volumetric strain that occurs in response to a change In pressure.
- 23. Pertaining to the relative ease with which a porous medium can transmit a liquid under a hydraulic gradient. It is a material property independent of the fluid properties.
- 24. Pertaining to a substance having different characteristics in different locations.
- 25. cycle The circulation of water from the sea to the atmosphere to the and land and back to the sea.
- 26. layer A body of material of low hydraulic conducitivy that is stratigraphically adjacent to one or more aquifers.
- 27. The property of a fluid describing its resistance to flow.
- 28. velocity Another term for specific discharge.
- 29. The ratio of the volume of void spaces in a rock or sediment to the total volume of the rock or sediment.
Down
- 2. porosity The volume of the void spaces through which water or other fluids can travel in a rock or sediment divinded by the total volume of the rock or sediment.
- 3. flow The flow of water over a land surface due to direct precipitation. It generally occurs when the precipitation rate exceeds the infiltration capacity.
- 5. weight The weight of a substance per unit volume.
- 6. aquifer An aquifer that is overlain by a confining bed.
- 7. gradient The change in total head with a change in distance in a given direction.
- 8. table The surface in an unconfined aquifer at which the water pressure is atmospheric. It can be measured by installing shallow wells extending into the zone of saturation.
- 11. The volume of water an aquifer releases from or takes into storage per unit surface area or the aquifer per unit change in head.
- 12. A nonpumping well, generally of small diameter, that is used to measure the elevation of the water table of potentiometric surface.
- 14. The sum of the process by which water passes from the liquid to the vapor state and the process by which plants give off water vapor through their leaves.
- 22. Pertaining to a substance having identical characteristics everywhere.
- 24. A graph that shows some property of ground water or surface water as a function of time.