File:Mauna Loa Carbon Dioxide-fr.svg

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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.
Date

23 April 2008(2008-04-23)
Source

Own work, from 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
Permission
(Reusing this file)		 See below.
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Camera location

19° 28' 19.92" N, 155° 35' 32.28" W

 This and other images at their locations on: Google Maps - Google Earth - OpenStreetMap (Info)

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head 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.

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attribution share alike		 This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
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Date/TimeThumbnailDimensionsUserComment
current10:09, 27 June 2008Thumbnail for version as of 10:09, 27 June 2008850 × 547 (31 KB)Sémhur (talk | contribs) (Data updated (now from 1958 to june 2008))
14:10, 23 April 2008Thumbnail for version as of 14:10, 23 April 2008800 × 547 (33 KB)Sémhur (talk | contribs) (== 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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