Datasets containing the wavelengths at 1.0 nm interval and tabulated values spectral irradiance for the sun for 21 and 22 August in Helsinki, Finland.
sun_hourly_august.spct
A data frame with 15841 rows (290 nm to 800 nm at 1 nm interval) and 3 variables.
The variables are as follows:
w.length numeric (nm)
s.e.irrad numeric (W m-2 nm-1)
UTC POSIXct (UTC date and time)
The data set includes NAs for missing night-time spectral irardiance values.
Lindfors, A.; Heikkil<U+00E4>, A.; Kaurola, J.; Koskela, T. & Lakkala, K. (2009) Reconstruction of Solar Spectral Surface UV Irradiances Using Radiative Transfer Simulations. Photochemistry and Photobiology, 85: 1233-1239