To calculate potential evapotranspiration i need this value..
Pls try with the attached file and the link
http://www.engr.scu.edu/~emaurer/tools/calc_solar_cgi.pl
Hi,
Please, see the attached file (equation 21, page 46) : https://www.kimberly.uidaho.edu/water/fao56/fao56.pdf
good luck!
Read FAO56 guidance. It has very detail coputation procedure and also have very detail examples.
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