Priestley-Taylor Calculator
Compute Alpha, Slope Delta, Psychrometric Gamma, Available Energy, Delta Factor, Et from Alpha, Slope Delta, Psychrometric Gamma, Available Energy. Free online Hong Kong ecology calculator.
Input Data
Alpha
Slope Delta
kPa/°C
Psychrometric Gamma
kPa/°C
Available Energy
MJ·m⁻²·day⁻¹
Results
0.7412
5.72mm/day
At a glance:Compute Alpha, Slope Delta, Psychrometric Gamma, Available Energy, Delta Factor, Et from Alpha, Slope Delta, Psychrometric Gamma, Available Energy. Free online Hong Kong ecology calculator.
Formula
ET = \alpha\,\dfrac{\Delta}{\Delta + \gamma}\,\dfrac{R_n - G}{\lambda}
\lambda \approx 2.45\ \mathrm{MJ/kg}
$$ET = \alpha\,\dfrac{\Delta}{\Delta + \gamma}\,\dfrac{R_n - G}{\lambda}$$$$\lambda \approx 2.45\ \mathrm{MJ/kg}$$How to Use
- Enter Alpha.
- Enter Slope Delta.
- Enter Psychrometric Gamma.
- Enter Available Energy.
- The calculator returns Alpha, Slope Delta, Psychrometric Gamma, Available Energy, Delta Factor, Et.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.