Lidar observations of stratospheric ozone and aerosol above the Canadian high arctic during the 1994-95 winter
Abstract. This letter reports on lidar observations of arctic stratospheric ozone and aerosol made from late December 1994 to mid-March 1995. These observations were conducted at Eureka (80øN,86.42øW) in the dian arctic. Based on NMC potential vorticity data and aerosol observations, the lower strat...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.504.4779 http://aolab.phys.dal.ca/publications/grl1995.pdf |
| Summary: | Abstract. This letter reports on lidar observations of arctic stratospheric ozone and aerosol made from late December 1994 to mid-March 1995. These observations were conducted at Eureka (80øN,86.42øW) in the dian arctic. Based on NMC potential vorticity data and aerosol observations, the lower stratosphere over Eu-reka was seen to be clearly within the Polar Vortex for most of the observation period. The intravortex obser-vations showed that in the stratosphere below the 500 K potential temperature level average ozone mixing tios decreased on the order of 15 % from early January to mid-February with an additional 15 % decrease ob-served from mid February to mid-March. These trends are consistent with the Upper Atmospheric Research Satellite (UARS) Microwave Limb Sounder (MLS) mea-surements of ozone made during the same time periods. |
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