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Claude Lorius

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  00:10:00  2002  Color  Sound

An interview with Claude Lorius, Emeritus Director of Research at CNRS, who received the CNRS Gold Medal in 2002. He received the award jointly with Jean Jouzel, for research which revealed the links between the quantity of greenhouse gases and climate change, resulting from the analysis of the air bubbles in the ice which has been accumulating for millennia at the South Pole.
Claude Lorius recalls his career, beginning with his first visit to the Antarctic in 1957, at the time of the International Geophysical Year. The air bubbles imprisoned in the ice make it possible to reconstruct the chemical composition of the atmosphere in previous centuries and to reveal the relationship between greenhouse gases and temperature. The researchers go back in time through the use of deeper and deeper core samples. At Dome C, a depth of 1000 m has been reached, which makes it possible to go back 30,000 years. At the Russian station Vostok, a complete climate cycle (150,000 years) has been described, and the EPICA program goes even further back (450,000 years).

Producer : CNRS Images Média
 
Author : DARS Jean-François (CNRS Images media, UPS CNRS, Ivry-sur-Seine) PAPILLAULT Anne (CNRS Images media, UPS CNRS, Ivry-sur-Seine)
Director : DARS Jean-François (CNRS Images media, UPS CNRS, Ivry-sur-Seine) PAPILLAULT Anne (CNRS Images media, UPS CNRS, Ivry-sur-Seine)
Identification
Audiovisual processPrises de vues réelles. Utilisation d'extraits de films (Continent blanc, Il y a 30 000 ans, Antarctique, Adélie 2000, Vostok 1990, EPICA).
Interventions en son direct. Musique (Beethoven, sonate op. 31 La tempête).
PersonnalitiesLORIUS Claude
(ONLINE)
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Discipline

Earth Sciences

Places  

Antarctica

Technical Sheet
Number1065
PublicLarge audience
Original Supportvideo Beta SP
VersionFrench
DistributionSale (private use), Sale (institutionnal use)
Delivery supportBeta SP
Ark Identifier