A panel of experts and researchers in irrigation was organized by FAO in May 1990, in collaboration with the International Commission on Irrigation and Drainage with the World Meteorological Organization, recommended the adoption of the combined method of Penman-Monteith as new standardized method for calculating reference evapotranspiration and advised on procedures for the calculation of the various parameters that the formula includes.
The FAO Penman-Monteith ETo estimate can be derived from the original equation of Penman-Monteith and aerodynamic and surface drag equations.
The goal of universal use of ETo using the FAO method Pennman-Monteith, although missing climate data.
For the complete calculation of ETo needed temperature, relative humidity, wind and radiation sensors.
However this app is capable calculate the ETo only with the temperature data, assuming the dew point temperature such as the minimum temperature, wind speed of 1.5 m/s and solar radiation clear day.
The location is carried through a location sensor or clicking a map.
Groups the results, ETo, Precipitation and Events Rain of the last seven days to be used in IrrglApp nad LandsWater
Calculate the percentage of ETo due to radiation.
Supports English, Spanish, French, Italian and Portuguese.
Supports Metric and English Units (US).
Imports data from weather stations near the place elected.
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| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 未知 | Android Google Play | 1.210 App下載 | 免費 | 1970-01-01 | 2015-03-11 |
