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Summary
Español: Variaciones en el ciclo solar.
This picture depicts the last three solar cycles as measured in solar irradiance, sunspot numbers, solar flare activity, and 10.7 cm radio flux. Solar irradiance, i.e the direct solar power at the top of the Earth's atmosphere, is depicted as both a daily measurement and a moving annual average. All other data are depicted as the annual average value.
See w:solar variation for more information.
Copyright
This image was created by Robert A. Rohde from the published data listed below and replaces an image created by William M. Connolley. It is part of the Global Warming Art project.
Image from Global Warming Art
This image is an original work created for Global Warming Art. Please refer to the image description page for more information.
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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.htmlGFDLGNU Free Documentation Licensetruetrue
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Data sources
- Irradiance: http://www.pmodwrc.ch/pmod.php?topic=tsi/composite/SolarConstant
- International sunspot number: http://www.ngdc.noaa.gov/stp/SOLAR/ftpsunspotnumber.html
- Flare index: http://www.koeri.boun.edu.tr/astronomy/readme.html
- 10.7cm radio flux: http://www.drao-ofr.hia-iha.nrc-cnrc.gc.ca/icarus/www/sol_home.shtml
References
File usage
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