The aerosol studies during the ARctic EXperiment (AREX) campaigns were carried out onboard the r/v Oceania research ship between 1996 and 2004. During each campaign the r/v Oceania cruised for seven weeks (June-August) in the area of the Arctic between 0 and 14E and 69 and 79N. In 2002 the measurements were also carried out from the station in Ny-Ålesund on Spitsbergen in co-operation with the AWI team. The aerosol studies were conducted using an ensemble of instruments, including the FLS-12 lidar, laser particle counter CSASP-100-HV-SP, sun-photometers and ozonometer (Microtops II). The laser particle counter was placed on a mast of the vessel and moved vertically, which facilitated the determination of the vertical structure of aerosol concentrations and their size distribution at altitudes of up to 20 m a. s. l. Simultaneously lidar FLS-12 provided the vertical profiles of aerosol concentrations at altitudes of up to 500 m a. s. l. Those were further used for the calculation of aerosol optical thickness. During the measurements at the Ny-Ålesund Koldewey-Station of AWI, the Koldewey Aerosol Raman Lidar (KARL) was used to investigate the different aerosol scenarios. KARL is also regularly operated throughout the year, particularly during spring.
Helmholtz Research Programs > MARCOPOLI (2004-2008) > POL1-Processes and interactions in the polar climate system