photobiologySun (version 0.4.1)

sun_hourly_august.spct: Ground level spectral irradiance at hourly intervals

Description

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.

Usage

sun_hourly_august.spct

Arguments

Format

A data frame with 15841 rows (290 nm to 800 nm at 1 nm interval) and 3 variables.

Details

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.

References

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