Surface ozone depletion episodes in the Arctic and Antarctic from historical ozonesonde records

• Main Authors: Tarasick, D. W., Bottenheim, J. W.
• Other Authors: Environment and Climate Change Canada
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2002
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Arctic; Antarctic; Canada; Eureka; Antarc*
• Online Access: https://hal.science/hal-00295198; https://hal.science/hal-00295198/document; https://hal.science/hal-00295198/file/acp-2-197-2002.pdf

International audience Episodes of ozone depletion in the lowermost Arctic atmosphere (0--2 km) at polar sunrise have been intensively studied at Alert, Canada, and are thought to result from catalytic reactions involving bromine. Recent observations of high concentrations of tropospheric BrO over l...