Evapotranspiration
Evapotranspiration
Evapotranspiration (pronounced: /ˌiːvəpoʊˌtrænspəˈreɪʃən/) is a term used in hydrology and meteorology to describe the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere.
Etymology
The term "evapotranspiration" is a combination of two processes: "evaporation" and "transpiration". The term "evaporation" comes from the Latin word "evaporare", which means "to disappear". The term "transpiration" comes from the Latin word "transpirare", which means "to breathe through".
Definition
Evapotranspiration is the process by which water is transferred from the land to the atmosphere by evaporation from the soil and other surfaces and by transpiration from plants. It is an essential part of the water cycle.
Related Terms
- Evaporation: The process by which water changes from a liquid to a gas or vapor.
- Transpiration: The process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.
- Hydrology: The scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources and environmental watershed sustainability.
- Meteorology: The scientific study of the atmosphere that focuses on weather processes and forecasting.
See Also
External links
- Medical encyclopedia article on Evapotranspiration
- Wikipedia's article - Evapotranspiration
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