Imatge:Radiocarbon bomb spike.svg
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Radiocarbon_bomb_spike.svg (21KB, tipus MIME: image/svg+xml
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This is a new version of Image:Atmospheric radiocarbon 1954-1993.svg. I have changed the title because I'm using additional data sources now.
[edit] Description
The figure shows the relative 14C / 12C ratio in the atmospheric CO2 as a function of time in the second half of the 20th century.
The plot was generated with gnuplot from data of atmospheric radiocarbon in Wellington, New Zealand 1954AD to 1993AD and in Vermunt, Austria 1959AD to 1983AD. The SVG file from gnuplot has been improved manually.
The data sources provide the data as D14C. For the plot the absolute percent modern value has been calculated assuming that each measurement was done in the same year as the respective sample was taken.
[edit] Data sources
- Manning, M.R., and W.H. Melhuish. 1994. Atmospheric 14C record from Wellington. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.
- Levin, I., B. Kromer, H. Schoch-Fischer, M. Bruns, M. Münnich, D. Berdau, J.C. Vogel, and K.O. Münnich, 1994. δ14CO2 record from Vermunt. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.
[edit] Licensing
All rights for generating the graphics shall be released. As far as I know there is no copyright protection on measurement data in general.
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I, the author of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible: Afrikaans | Alemannisch | Aragonés | العربية | Български | Català | Česky | Dansk | Deutsch | Ελληνικά | English | Español | Esperanto | فارسی | Français | Galego | 한국어 | हिन्दी | Hrvatski | Ido | Bahasa Indonesia | Íslenska | Italiano | עברית | Latina | Lietuvių | Magyar | Bahasa Melayu | Nederlands | Norsk (bokmål) | Norsk (nynorsk) | 日本語 | Polski | Português | Ripoarish | Română | Русский | Slovenčina | Slovenščina | Српски | Svenska | ไทย | Türkçe | Українська | Tiếng Việt | Walon | 简体中文 | 繁體中文 | 粵語 | +/- |
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