Abstract
The GOA Aerosol Arctic Campaign 2002 was carried out during the months of June and July at ALOMAR (Arctic Lidar Observatory for Middle Atmosphere Research). Aerosol measurements at this latitude are scarce, so the aim of this campaign is the characterization of the Arctic aerosols. Two instruments, the Cimel photometer at the AERONET network and the EPP-3000 spectrometer, are used for the measurements. This work is focuses on the Cimel data. These data show a low aerosol optical thickness (AOT), with an average value of 0.135 at 440 nm. The AOT decreases strongly with wavelength, so the /spl Aring/ngstro/spl uml/m parameter /spl alpha/(440,670,870) presents high values, with an average of 1.61 for a log-log fit at these three wavelengths.
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