pvl_extraradiation
Determine extraterrestrial radiation from day of year
Contents
Syntax
Ea = pvl_extraradiation(doy)
Description
Determine the amount of extraterrestrial solar radiation.
Inputs
- doy - an array specifying the day of year. Valid values are >=1 and <367.
Outputs
- Ea - extraterrestrial radiation present in W/m^2 on a surface which is normal to the sun. Ea is of the same size as the input doy.
Example
Calculate extraterrestrial radiation for doy = 60;
Ea = pvl_extraradiation(60)
Ea = 1.3922e+03
References
[1] http://solardat.uoregon.edu/SolarRadiationBasics.html, Eqs. SR1 from [2] and SR2 from [3].
[2] Partridge, G. W. and Platt, C. M. R, Radiative Processes in Meteorology and Climatology, 1976.
[3] Duffie, J. A. and Beckman, W. A., Solar Engineering of Thermal Processes, 2nd edn. J. Wiley and Sons, New York, 1991.
See Also
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