potential evapotranspiration

См. также в других словарях:

• potential evapotranspiration —    Evapotranspiration occurring under adequate soilmoisture supply at all times for given temperature and humidity conditions [16] …   Lexicon of Cave and Karst Terminology

• potential evapotranspiration —   theoretical amount of moisture that could be lost from the surface to the atmosphere if it were available …   Geography glossary

• Evapotranspiration — (ET) is a term used to describe the sum of evaporation and plant transpiration from the earth s land surface to atmosphere. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and… …   Wikipedia

• Potential evaporation — or potential evapotranspiration (PET) is defined as the amount of evaporation that would occur if a sufficient water source were available. If the actual evapotranspiration is considered the net result of atmospheric demand for moisture from a… …   Wikipedia

• hydrologic sciences — Introduction       the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology.       In its widest sense hydrology encompasses the study of the occurrence, the… …   Universalium

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium

• Aridity index — An aridity index (AI) is a numerical indicator of the degree of dryness of the climate at a given location. A number of aridity indices have been proposed (see below); these indicators serve to identify, locate or delimit regions that suffer from …   Wikipedia

• Desert — Not to be confused with dessert. This article is about dry terrain. For the act of abandoning or withdrawing support, see desertion. For other uses, see Desert (disambiguation) …   Wikipedia

• Penman equation — The Penman equation describes evaporation ( E ) from an open water surface, and was developed by Howard Penman in 1948. Penman s equation requires daily mean temperature, wind speed, relative humidity, and solar radiation to predict E. Simpler… …   Wikipedia

• Crop coefficient — Models of transpiration, or combined evapotranspiration (ET), from plants often combine an idealized or well calibrated reference crop response model with coefficients that account for differences in response observed for the crop of interest.… …   Wikipedia

• Biome — The planet Earth Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms,[1] and are of …   Wikipedia