sun_hourly_june.spct {photobiologySun}

Ground level spectral irradiance at hourly intervals

Description

Datasets containing the wavelengths at 1.0 nm interval and tabulated values of spectral irradiance for the sun for 22 to 24 June 2010 in Helsinki, Finland.

Usage

sun_hourly_june.spct

Format

A source_spct containing 58 spectra in long form (293 nm to 800 nm at 1 nm interval) and 4 variables w.length, s.e.irrad, UTC, and spct.idx.

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)

• spct.idx factor with one level per spectrum

The data set includes NAs for missing night-time spectral irradiance values.

Note

A summary of these data has been published in the article by Morales et al. (2013). The simulation methods has been described in Lindfors et al. (2009).

Author(s)

Anders K. Lindfors (radiation transfer modelling)

References

Morales, L. O.; Brosché, M.; Vainonen, J.; Jenkins, G. I.; Wargent, J. J.; Sipari, N.; Strid, A.; Lindfors, A. V.; Tegelberg, R. & Aphalo, P. J. (2013) Multiple roles for UV RESISTANCE LOCUS8 in regulating gene expression and metabolite accumulation in Arabidopsis under solar ultraviolet radiation. Plant Physiology, 161, 744-759

Lindfors, A.; Heikkilä, 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

Examples

e_irrad(sun_hourly_june.spct)
wl_range(sun_hourly_june.spct)
getMultipleWl(sun_hourly_june.spct) # number of spectra