Dataset of spectral irradiance from a set of two Q-Panel UVB-313 40W fluorescent tubes, measured at seven different temperatures.
Absolute values are comparable among the different temperatures. The lamps and the cosine diffuser were located inside a Conviron growth chamber. The measurements were done with a recently calibrated Macam double-monochromator spectroradiometer located outside the chamber and maintained at constant room temperature of 22 C. After each change in the temperature controller set-point enough time was allowed after the temperature had stabilized inside the chamber, for the output of the lamps to also become stable.
qp_uvb313_temp.mspctA "source_mspct" object containing a collection of
"source_spct" objects, each with 111 rows (290 nm to 400 nm,
1.0 nm step) and 2 variables.
The "source_mspct" object contains "source_spct"
objects minus5C, plus00C, plus05C, plus10C, plus20C, plus30C, and plus35C.
The variables in each member spectrum are as follows:
w.length (nm)
s.e.irrad (relative energy based units)
The variables are as follows:
Aphalo, P J, R Tegelberg, and R Julkunen-Tiitto. 1999. The Modulated UV-B Irradiation System at the University of Joensuu.<U+201D> Biotronics 28: 109<U+2013>120. http://ci.nii.ac.jp/naid/110006175827/en.