Freshwater Flashcards
what is infiltration
When water enters or seeps into something, e.g the soil.
What is surface run-off
The access amount of water that flows over the surface
evapotranspiration
Everything that is evaporated into the air
through flow
The flowing of water in the soil, e.g in small streams towards a river
what type of system is a drainage basin
an open system
What is an example of an output
Evaporation
What is the hydrological cycle
the cycle of water that describes the continual movement of water
What is an open system
something that allows movement of energy and matter across its boundaries.
What is the main input in a drainage system
Precipitation
What are some factors effecting evaporation
vegetation cover, colour of the surface and the amount of water available
what is potential evapotranspiration
the water loss that would occur if there was an unlimited supply of water in soil for use by vegetation.
What does groundwater occur as a result of
- Infiltration of part of the total precipitation at the ground surface
- Seepage through the banks and bed of surface water bodies such as ditches, rivers, lakes and oceans
- Groundwater leakage and inflow from adjacent rocks and aquifers
Artificial recharge from irrigation, reservoir and so on.
What is river discharge
River discharge is the volume of water passing a given point over a set of time.
what is an example of a store
vegetation
What is Through flow
Water that either falls through gaps in vegetation or which drops from leaves, twigs or stems
