The Part of the Hydrological Cycle that happens on land goes on in drainage basins
Drainage basins are open systems:
- There are inputs of water to drainage basins.
- Water flows through them and is stored in them.
- There are outputs of water from drainage basins.
Inputs and Outputs in Drainage Basins
- River Flow into the Sea
Flows/Transfers- Ways in which water moves from one place to another:
- Surface Runoff
- Channel Flow
- Groundwater Flow
Features of a Drainage Basin
Features of a Drainage Basin 2
Drainage basin - the area of land drained by a river.
Catchment area - the area within the drainage basin.
Watershed - the ridges of highland surrounding a drainage basin. It marks the boundary between two drainage basins.
- Water falling either side of these ridges will go into different drainage basins.
Source - where a river starts, usually in an upland area (e.g. mountains).
Confluence - the point at which two rivers or streams join.
Tributary - a stream or smaller river which joins a larger stream or main river.
Mouth - the point where the river comes to the end, usually when entering the sea or a lake.