New calculation methods of diurnal distribution of solar radiation and its interception by canopy over complex terrain

The prescription of diurnal radiation distribution and the consideration of topographic impact on canopy radiation interception are often required in ecological modelling studies. The most commonly used methods in current models are the sine-curve assumption for diurnal radiation distribution and the topographic geometric projection for canopy radiation interception. In this study, the defects of these two methods are examined and two new …