Lead 210 or climatic changes at South Pole?

International audience The 21øpb concentration has been measured in 92 adjacent firn samples collected at the South Pole along a 18 m depth profile. The decay analysis shows that significant changes happened around 1920 and 1954 either in the accumulation rate or in the 21 0pb content of the new fal...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Sanak, J., Lambert, G.
Other Authors: Centre des Faibles Radioactivités, Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 1977
Subjects:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
South Pole
South pole
Online Access:https://hal.archives-ouvertes.fr/hal-03408317
https://hal.archives-ouvertes.fr/hal-03408317/document
https://hal.archives-ouvertes.fr/hal-03408317/file/grl1977Sanak357.pdf
https://doi.org/10.1029/GL004i009p00357
Description
Summary:International audience The 21øpb concentration has been measured in 92 adjacent firn samples collected at the South Pole along a 18 m depth profile. The decay analysis shows that significant changes happened around 1920 and 1954 either in the accumulation rate or in the 21 0pb content of the new fallen snow.

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