| photobiologySun-package | photobiologySun: Data for Sunlight Spectra |
| gap.mspct | Solar spectral irradiance in a tree canopy gap (measured) |
| irrad_Kipp.data | Ground level solar irradiance (measured) |
| photobiologySun | photobiologySun: Data for Sunlight Spectra |
| ppfd_BF.data | Ground level solar PAR photon irradiance, direct and diffuse (measured) |
| ppfd_LICOR.data | Ground level solar PAR photon irradiance (measured) |
| sun_hourly_august.spct | Ground level spectral irradiance at hourly intervals |
| sun_hourly_june.spct | Ground level spectral irradiance at hourly intervals |
| sun_may_morning.spct | Ground level solar spectral irradiance (measured) |
| sun_reference.mspct | Reference solar spectra from ASTM G173 |