Synchronicity of Aerosol Optical Measurements acquired at Arctic and sub-Arctic sites

The ARCTAS (Arctic Research of the Composition of the Troposphere from Aircraft and Satellites) campaign during the spring of 2008 provided a unique opportunity to compare and interpret a variety of airborne, groundbased and satellite aerosol measurments. In this communication we focus on the Arctic-wide interpretation of sunphotometry measurements acquired at a variety of Arctic and sub-Arctic sites and their link with available lidar and satellite data. The presentation will focus on sites in Barrow, Alaska (NOAA Earth System Research Laboratory), the PEARL (Polar Environment Atmospheric Research Laboratory) Arctic observatory in Eureka, Nunavut (Canada) and AEROCAN / AERONET sites in Resolute Bay, Nunavut, Yellowknife, Northwest Territories (Canada), and Iquluit, Nunavut. Emphasis will be placed on the synchronicity and propagation of extensive and intensive aerosol properties.