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Summary
| Description |
English: See description here.
Français : Évolution de la teneur atmosphérique en dioxyde de carbone, mesurée depuis le volcan Mauna Loa, dans l'île de Hawaii. La courbe de cette évolution est connue sous le nom de « courbe de Keeling ». C'est sur le Mauna Loa que les taux mesurés sont les plus élevés, mais on retrouve la même évolution sur d'autres sites dans le monde (voir ici).
La fluctuation annuelle de dioxyde de carbone est dûe aux variation saisonnière causées par les plantes. Comme beaucoup de forêts se trouvent dans l'hémisphère nord, il y a plus de rejet de gaz carbonique dans l'atmosphère durant l'été septentrional que pendant l'été austral. Ce cycle annuel est indiqué dans l'encart en bas à droite de l'image, et montre la concentration moyenne de gaz au cours des différents mois. Ce cycle se répète quelle que soit l'année observée. La courbe grise montre la teneur moyenne mensuelle de dioxyde de carbone, et la courbe rouge représente la moyenne annuelle. |
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| Source | Image:Mauna Loa Carbon Dioxide.png, uploaded in Commons by Nils Simon under licence GFDL & CC-NC-SA ; itself created by Robert A. Rohde from NOAA published data and is incorporated into the Global Warming Art project. | ||
| Author | Sémhur | ||
| Other versions |
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Versions mises à jour (2015)
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| Attribution (required by the license) | © Sémhur / Wikimedia Commons / | ||
| SVG |  W3C-validity not checked. 
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| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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Copyleft: This work of art is free; you can redistribute it and/or modify it according to terms of the Free Art License. You will find a specimen of this license on the Copyleft Attitude site as well as on other sites. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:09, 27 June 2008 | | 850 × 547 (31 KB) | Sémhur | Data updated (now from 1958 to june 2008) |
| 14:10, 23 April 2008 |  | 800 × 547 (33 KB) | Sémhur | == Description == {{Information |Description= {{en|See description here.}} {{fr|Évolution de la teneur atmosphérique en dioxyde de carbone, mesurée depuis le volcan Mauna Loa, dan |
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