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Ice Core Analysis in Arctic and Antarctic Regions

  • M. Legrand
Conference paper
Part of the NATO ASI Series book series (volume 7)

Abstract

The relative remoteness of continental polar regions from natural and anthropogenic sources of various chemicals suggests that their atmosphere represents the best present-day example of the “background atmosphere” for their respective hemispheres and are, therefore, very sensitive to any natural and/or anthropogenic changes. Due to their distinct seasonal cycle with a long polar night and their very cold temperatures, polar regions can be considered as a kind of “giant natural laboratory”, in which it is probably much simpler than elsewhere to check the complex chemistry governing major biogenic cycles (S, N and C). Furthermore, a unique specificity of polar regions comes from the desposition of solid particles accumulated on polar ice sheets, which offers the possibility to reconstruct the paleoenvironnement of the Earth back to several hundred thousands years.

Keywords

Snow Layer Antarctic Snow Distinct Seasonal Cycle Polar Snow Polar Precipitation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • M. Legrand
    • 1
  1. 1.Laboratoire de Glaciologie et Géophysique de l’Environnement du CNRSSt Martin d’Hères CédexFrance

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