Features Flashcards
Define the drainage basin (Features rivers)
An area of land where all surface water converges to a single point at a lower elevation, usually the exit of the basin
What is the watershed? (Features rivers)
The surrounding area where all river processes take place within
What does the global hydrological cycle explain? (Features rivers)
The distribution of water as it moves as either a liquid, solid or vapour between the ocean, the atmosphere and the land
How is the GHC an example of a closed system? (Features rivers)
No water is ever added or lost
Outline the key processes of the GHC, beginning with precipitation (Features rivers)
Precipitation infiltration/transpiration precolation (filtering) run off ground water evaporation condensation clouds
What does the drainage basin hydrological cycle show? (Features rivers)
The movement of water within the drainage basin
What are the inputs shown by the DBHC? (Features rivers)
Precipitation
What are the stores shown by the DBHC? (Features rivers)
Interception surface storage channel store soil-water store ground water store vegetation store
What are the transfers shown by the DBHC? (Features rivers)
through fall stem flow surface run off infiltration percolation groundwater flow channel flow
What are the outputs shown by the DBHC? (Features rivers)
transpiration
evaporation
river run off
What two things are always trying to reach an equilibrium? (Features rivers)
Inputs and outputs
