Lead 210 or climatic changes at South Pole?

• 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

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.