Using two years measurements of aerosol extinction coefficient retrieval from CALIPSO as a joint NASA-CNES satellite mission along with ground-based measurements of particle
mass concentration (PM2.5), we assess particulate matter air quality over different urban and periurban areas in France.
In order to understanding the influence of the long range transport onto the local aerosol load we have focused on
analysing of pollution event in Lille - urban area and Dunkerque - industrial area. We compared ground- based
measurements with CALIPSO measurements. The CALIPSO level 2 aerosol records are more useful because the
extinction coefficient is available. We use the extinction coefficient profiles which are provided by CALIPSO to depict
the vertical structure of the aerosol properties. The combination of ground- based measurements of PM2.5, aerosol
optical thickness (AOT's) obtained by Aeronet network data and CALIOP data enhances
the possibilities of studying transport pathway of aerosol in the atmosphere and aerosol optical properties (aerosol
extinction coefficient, aerosol optical depth, atmosphere transparency). The linear relationship between AOT _CALIPSO
and AOT _ Aeronet network shows a slop of 0.4 in north of France. Moreover, we observed the good relationship
between PM2.5 and AOT by CALIPSO profiles with a slope of 57.59 and correlation coefficient of 0.75 over France.
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