Hourly global solar radiation estimator.
The SolarcCalc module is used to predict hourly global solar radiation on a horizontal surface from daily average temperature extremes and total precipitation records. The method used in the calculations is based on that presented in An Introduction to Environmental Biophysics by Campbell, G.S. and J.M. Norman (1998).
Version 1.0 of the SolarcCalc module is based on the source code of SolarCalc.jar (version 1.1, Jan. 2006), a computer program that was developped by the USDA Agricultural Research Service and that is available free of charge at https://data.nal.usda.gov/dataset/solarcalc-10.
Subsequent versions of the SolarcCalc module implemented performance improvements and fixed some issues with the original code and method.
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