Where does evapotranspiration occur?
Evapotranspiration (ET) is a term used to describe the water consumed by plants over a period of time. Evapotranspiration is the water loss occurring from the processes of evaporation and transpiration. Evaporation occurs when water changes to vapor on either soil or plant surfaces.
Where is evapotranspiration in the water cycle?
Here, evapotranspiration is defined as the water lost to the atmosphere from the ground surface, evaporation from the capillary fringe of the groundwater table, and the transpiration of groundwater by plants whose roots tap the capillary fringe of the groundwater table.
Where does most water evaporation occur?
Oceans Evaporation over Oceans: where nearly 80% of water evaporation occurs. Approximately 80% of all evaporation is from the oceans, with the remaining 20% coming from inland water and vegetation. Winds transport the evaporated water around the globe, influencing the humidity of the air throughout the world.
Where is evapotranspiration the highest?
Southeast Within the conterminous United States, the estimated mean annual evapotranspiration is greatest in the Southeast (about 35 inches per year or about 70 percent of the precipitation), which is an area of abundant precipitation, permeable soils, and substantial solar radiation; it is least in the semiarid region of the …
What does evapotranspiration mean in the water cycle?
Evapotranspiration is the process of evaporating water from leaves through plant transpiration during photosynthesis. It varies because of a multitude of factors like wind, temperature, humidity, and water availability.
What is evaporation and evapotranspiration?
Evaporation (transformation of liquid water to water vapor) and transpiration (water vapor emission from plant surfaces) are outflow processes of water budgets. Evapotranspiration (ET) is the combined process of water surface evaporation, soil moisture evaporation, and plant transpiration.
Why is evapotranspiration higher in summer?
Potential Evapotranspiration PET is higher in the summer, on less cloudy days, and closer to the equator, because of the higher levels of solar radiation that provides the energy for evaporation.
What is evaporation in the water cycle?
In the water cycle, evaporation occurs when sunlight warms the surface of the water. The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas. Once evaporated, a molecule of water vapor spends about ten days in the air.
How does evapotranspiration apply to the hydrologic cycle?
Evapotranspiration is an important process in the water cycle because it is responsible for 15% of the atmosphere's water vapor. Without that input of water vapor, clouds couldn't form and precipitation would never fall. Evapotranspiration is the combined name for the processes of evaporation and transpiration.
What is called evapotranspiration?
evapotranspiration. / (ɪˌvæpəʊˌtrænspəˈreɪʃən) / noun. the return of water vapour to the atmosphere by evaporation from land and water surfaces and by the transpiration of vegetation.
What is the evapotranspiration from a watershed?
Evapotranspiration (ET) is the combined process of water surface evaporation, soil moisture evaporation, and plant transpiration.
What affects the amount of evapotranspiration?
Factors that affect evapotranspiration include the plant's growth stage or level of maturity, percentage of soil cover, solar radiation, humidity, temperature, and wind.
What is evaporation transpiration and evapotranspiration?
Evaporation (transformation of liquid water to water vapor) and transpiration (water vapor emission from plant surfaces) are outflow processes of water budgets. Evapotranspiration (ET) is the combined process of water surface evaporation, soil moisture evaporation, and plant transpiration.
What causes evapotranspiration?
Evapotranspiration is the process of evaporating water from leaves through plant transpiration during photosynthesis. It varies because of a multitude of factors like wind, temperature, humidity, and water availability.
What is evapotranspiration used for?
Evapotranspiration is considered as one of the most important components of the hydrological cycle. On the Earth's surface, evapotranspiration plays an important role in context of water-energy balance and irrigation, as well as agriculture practices.
What is evapotranspiration and factors affecting evapotranspiration?
Factors that affect evapotranspiration include the plant's growth stage or level of maturity, percentage of soil cover, solar radiation, humidity, temperature, and wind. Through evapotranspiration, forests reduce water yield, except for in unique ecosystems called cloud forests.
What does evapotranspiration depend on?
Assuming that moisture is available, evapotranspiration is dependent primarily on the availability of solar energy to vaporize water. Evapotranspiration therefore varies with latitude, season of year, time of day, and cloud cover.
Why is there more evapotranspiration in summer?
Potential Evapotranspiration PET is higher in the summer, on less cloudy days, and closer to the equator, because of the higher levels of solar radiation that provides the energy for evaporation.
What affects evapotranspiration?
The principal weather parameters affecting evapotranspiration are radiation, air temperature, humidity and wind speed.