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Unit 4 vocab
Hydrology
| Term | Definition |
|---|---|
| Meander | Curve or bend in a stream formed when a stream's slope decreases |
| River Delta | Triangular deposit, Usually made up of silt and clay particles |
| Precipitation | All solid and liquid forms of water-including rain, snow, sleet, and hail-that fall from clouds |
| Evaporation | Change of state from a liquid to a gas |
| Water table | Upper boundary pf the zone of saturation |
| Zone of saturation | Region below Earth's surface in which groundwater completely fills all the pores of a material |
| Zone of aeration | Above the water table, materials are moist, but because they are not saturated with water, air occupies much of the pores |
| Permeability | The ability of a material to let water pass through it |
| Aquifer | Where groundwater flows through permeable sediment and rock |
| Infiltration | Process by which precipitation that has fallen on land trickles into the ground and becomes groundwater |
| Transpiration | The act a plant to loss water through it's leaves and stem |
| Condensation | Process by which cooling gas changes to a liquid |
| Groundwater | Water present beneath Earth's surface in pore spaces and fractures in rock formations |
| Runoff | Water that flows down slope of Earth's surface and may enter a lake, stream, or river |
| Watershed/river basin | Land area drained by a stream system |
| Rejuvenation | Process by which a stream resumes down cutting toward it's base level, increasing it's rate of flow |
| Flood plains | Broad, flat, fertile area that is covered with water during floods |
| Tributaries | A river or stream that feeds into a larger moving body of water |
| Cut bank | The outside back of a water channel |
| Oxbow lake | A U-shaped lake that forms when the wider meander of a river cuts off |
| Salinity | The amount of salt dissolved in a body of water |
| turbidity | Cloudiness or haziness of water of a fluid caused by a large number of particles visible to the naked eye |
| pH | Scale used to specify how acidic or basic a solution is |
| Point source pollution | A single identifiable source of pollution |
| Non point source pollution | Pollution caused by many different sources |
| Density current | Often seen as different dentsity of water flow around eachother, I.e. cooler water deeper in the ocean flowing differently than surface water |
| Coriolis effect | When a mass in a moving, rotating system experiences a force that acts differently from it's own, often seen as a cross over from northern to southern hemispheres |
| Up-welling | When nutrient rich water from deep in the ocean rises to the surface |
| Salt-water intrusion | The movement of saline water into a fresh water aquifer |
Created by:
ChristianH211
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