Empirical model, Estimation model, Photosynthetically active radiation, Radiometric measurements, Solar irradiance, South-eastern Spain
Clearness index, global irradiance, photosynthetic photon flux density, solar zenith angle
Clear skies, Cloudy skies, Effective emissivity, Long-wave radiation
ozone depletion, Artificial neural network, Multi-layer perceptron network, Ultraviolet irradiance, UVI index