ASCE's Standardized Reference Evapotranspiration Equation

Walter, Ivan A.; Allen, Richard G.; Elliott, Ronald L.; Jensen, Marvin E.; Itenfisu, Daniel; Mecham, B.; Howell, Terry A.; Snyder, Richard L.; Brown, Paul W.; Echings, S.; Spofford, Thomas L.; Hattendorf, M. J.; Cuenca, Richard H.; Wright, James L.; Martín, Daniel

doi:10.1061/40499(2000)126

Cited by 257 publications

(268 citation statements)

References 6 publications

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“…Models of different complexity have been developed for predicting ET in greenhouse crops. Among the different approaches used to calculate ET, the FAO Penman-Monteith (PM) equation is currently considered a standard reference (Stanghellini, 1987;Allen et al, 1998;Walter et al, 2002):…”

Section: Modelling Evapotranspiration In Greenhouse Cropsmentioning

confidence: 99%

Modelling Evapotranspiration of Container Crops for Irrigation Scheduling

Bacci¹,

Battista²,

Cardarelli³

et al. 2011

Evapotranspiration - From Measurements to Agricultural and Environmental Applications

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Section: Modelling Evapotranspiration In Greenhouse Cropsmentioning

confidence: 99%

Modelling Evapotranspiration of Container Crops for Irrigation Scheduling

Bacci¹,

Battista²,

Cardarelli³

et al. 2011

Evapotranspiration - From Measurements to Agricultural and Environmental Applications

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“…Such a hypothetical crop has similar mechanism with land surface evapotranspiration, which ensured that ET o was only a function of climatic factors (Allen et al, 1998). The Penman-Monteith model modified by FAO (hereafter FAO-PM model) has proved to have a global validity as a standardized reference for potential evapotranspiration, and can be applied in both arid and humid climates around the world (Walter et al, 2000;Goyal, 2004). Therefore the FAO-PM model was applied to calculate ET o in this study:…”

Section: Potential Evapotranspiration (Et O )mentioning

confidence: 99%

Moisture conditions and climate trends in China during the period 1971–2000

Yin

et al. 2006

Int. J. Climatol.

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This paper describes the general moisture conditions and the annual and seasonal trends of temperature, precipitation, potential evapotranspiration and aridity/humidity index from 1971 to 2000 in China. Observed climatic data from 616 meteorological stations over China's land surface were used. Potential evapotranspiration was calculated by the Penman-Monteith model with a modified net radiation part to accommodate China's unique climatic conditions. According to the aridity/humidity index, a ratio of potential evapotranspiration to precipitation, four moisture regional types were delineated gradually from the southeast to the northwest, i.e. humid, subhumid, semiarid and arid throughout China. Linear regression was performed on the 30-year time series of the four climate factors in order to detect possible trends. The results confirm the obvious spatial and temporal difference of climate trends. Surface air temperature has increasing trends almost all over China especially in winter. Most stations are statistically significant. Annual precipitation shows increasing trends at more than half of the stations, and the increasing trends mainly occur in summer and winter while the decreasing trends occur in spring and autumn. However, most stations are not statistically significant. Potential evapotranspiration has decreasing trends in most stations and nearly half of the stations are statistically significant. Annual aridity/humidity index shows primarily decreasing trends with a distribution nearly the same as the increasing trends of precipitation. The index has the decreasing trends in spring and summer and the increasing trends in autumn and winter. The results suggest that it is necessary to consider precipitation and potential evapotranspiration simultaneously to describe the moisture conditions exactly.

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“…We used the Pennman -Monteith methodology [15] to calculate evapotranspiration of our culture along the year. In order to do so, we use the formulation:…”

Section: Evapotranspiration Modelmentioning

confidence: 99%

Optimal Control for an Irrigation Problem with Several Fields and Common Reservoir

Lopes

Fontes²

2016

Lecture Notes in Electrical Engineering

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Abstract. In a previous study, the authors developed the planning of the water used in the irrigation systems of a given farmland in order to ensure that the field cultivation is in a good state of preservation. In this paper, we introduce a model to minimize the water flowing into a reservoir that supplies different fields with different types of crops. This model is described as an optimal control problem where the water flow from a tap and the water used in the fields are the controls. The trajectories are described as the humidity in the soil and the amount of water in the reservoir.

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ASCE's Standardized Reference Evapotranspiration Equation

Cited by 257 publications

References 6 publications

Modelling Evapotranspiration of Container Crops for Irrigation Scheduling

Modelling Evapotranspiration of Container Crops for Irrigation Scheduling

Moisture conditions and climate trends in China during the period 1971–2000

Optimal Control for an Irrigation Problem with Several Fields and Common Reservoir

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