The empirical relation between solar radiation and hours of sunshine

Between total solar radiation on a horizontal surface and hours of bright sunshine has been examined

J. Glover; J. S. G. McCulloch

2007

Scholarcy highlights

  • Between total solar radiation on a horizontal surface and hours of bright sunshine has been examined
  • It has been shown that the slope of the relationship b is effectively constant, while the threshold value a is a function of latitude
  • An empirical relationship leading to the Ångström equation at each latitude ϕ over the range 0° - 60° is derived and is shown to give values in reasonable accord with previous experience

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