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Les changements de climat

Réduction des trous dans la couche d'ozone

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11 février 2013
Fuelling Earth’s climate system
The climate system is fuelled by incoming radiation and cooled by long-wave radiation emitted back into space.
Credits: R. Michie
South Pole ozone
Time-series (1996 to 2012) of total polar ozone mean values over the months of September, October and November as measured by GOME, SCIAMACHY and GOME-2 flown on ERS-2, Envisat and MetOp-A, respectively. Smaller ozone holes are evident during 2002 and 2012. The maps were generated using total ozone columns derived with the GODFIT algorithm (BIRA/IASB, RT Solutions Inc.), which has been consistently applied to the three different satellite instruments.
Credits: BIRA/IASB
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