Calculation of Potential evapotranspiration by Hamon's Equation

Calculation of Potential evapotranspiration by Hamon's Equation

1ti(℃) Jan:, Feb:, Mar:, Apr: Mean monthly temperature
2- May:, Jun:, Jul:, Aug: -
3- Sep:, Oct:, Nov:, Dec: -
4Latitude(φ) °North:+,South:-
5Graph -
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Keyword・Reference・Remarks・History

LaTex

Keyword

Potential evapotranspiration,Hamon's equation,Latitude,Solar declination,Mean monthly temperature,Saturated vapor pressure

Reference

[1]:社団法人土木学会:『水理公式集平成11年版』,pp.17-19
[2]:The California Irrigation Management Information System.CIMIS Equation
[3]:Japanese Industrial Standards Committee:『Estimation method of generating electric energy by PV power system』JISC8907:2005
[4]:Gregory McIsaac.Evapotranspiration
[5]:LOICZ- Biogeochemical Modelling Node.Hamon's Equation

Remarks

・Ep:Potential evapotranspiration
・es:Saturated vapor pressure
・N:Average day length of the month
・t:Mean monthly temperature
・Making Equation Image is powered by CODECOGS

History

・2010/10/10:Upload

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