Rivers
1) Water Cycle / Hydrological Cycle
- describes the continuous movement of water on, above and below the surface of the Earth.
- it involves the exchange of energy, which leads to temperature changes.
- eg: when water evaporates, it takes up energy from its surroundings and cools the environment
Processes
- Preciptation = input
- Interception by vegetation = Storage
- Stemflow = Transfers
- Surface strage = Storage
- Infiltration = Transfers
- Soil Moisture storage = Storage
- Percolation = Transfers
- Groundwater storage = storage
- Transpiration = Output
- Evaporation = Output
- Surface run-off = Transfers
- Throughflow = Transfers
- Groundwater flow = Transfers
- River carrying water to the sea = Output
- Deposition/Sublimation
- Condensation
- Percolation
The Processes of Water Cycle
2) River Basin/Wateshed
- river basin- A river basin is the portion of land drained by a river and its tributaries.
- watershed -A watershed is simply the area of land that catches rain and snow and drains or seeps into a marsh, stream, river, lake or groundwater.
Differences between a river basin and watershed ?
- Both are areas of land that drain to a particular water body, such as a lake, stream, river or estuary.
- In a river basin, all the water drains to a large river.
- The term watershed is used to describe a smaller area of land that drains to a smaller stream, lake or wetland.
- There are many smaller watersheds within a river basin.
 |
| River Basin |
Watershed
HOPE YOU ENJOYED THIS PRESENTATION ! THANKS FOR READING ^^ #thankyou
#Tor Jia Wen
#7 Kappa
#16/7/13
#Geography - River
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