Erythemal_action_spectrum.svg
Summary
Description Erythemal action spectrum.svg |
English:
UV sunlight spectrum (on a summer day in the Netherlands), along with the CIE erythemal action spectrum. The effective spectrum is the product of the former two.
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Date | 10 July 2006 (original upload date) |
Source | Own work , based on [1] |
Author | Hankwang |
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Gnuplot script:
# data source: http://www.temis.nl/uvradiation/info/uvindex.html # solar spectrum: in Netherlands, noon, clear blue sky action(l) = (l<297) ? 1 : ((l<327) ? 0.0015**((l-297)/30) : 1.5e-3*(1.2e-4/1.5e-3)**((l-327)/73)) set xlabel 'Wavelength (nm)' set ylabel 'Irradiance (W/m^2/nm)' set xrange [280:390] set yrange [8e-5:2] set log y set grid set style data lines set nokey set label 'Sunlight spectrum' at 330,0.3 set label "Erythemal action\nspectrum" at 320,0.025 set label 'Effective spectrum' at 300,2.5e-4 set terminal svg enhanced fsize 18 set output 'erythemal_spectrum.svg' plot \ 'sunNL.dat', \ action(x), \ 'sunNL.dat' using 1:(action($1)*$2) unset output
Datafile sunNL.dat:
295 1e-4 300 3e-3 305 3.1e-2 310 0.1 315 0.2 320 0.3 325 0.42 330 0.48 340 0.55 350 0.60 365 0.65
Licensing
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License , Version 1.2 or any later version published by the Free Software Foundation ; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License . http://www.gnu.org/copyleft/fdl.html GFDL GNU Free Documentation License true true |
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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This licensing tag was added to this file as part of the GFDL licensing update . http://creativecommons.org/licenses/by-sa/3.0/ CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 true true |
Original upload log
Transferred from en.wikipedia to Commons by Leyo using CommonsHelper .
- 2006-07-10 22:30 Hankwang 600×480× (8848 bytes) Reference: http://www.temis.nl/uvradiation/info/uvindex.html