Physical and chemical properties and processes of boundary layer aerosols at Aboa, Queen Maud Land

The measurements have been conducted in austral summers 1997/1998, 1999/2000, 2000/2001, 2003/2004, 2004/2005 and 2006/2007. Measurements and data: 1997/98 Time resolution: 48 hours - 2-stage filter samples (ion chromatographic analyses) - 12-stage impactor samples (ion chromatographic analyses) Time resolution: 10 min - 1 hour - particle number concentrations 1999/2001 and 2000/2001 Time resolution: 10 min - 1 hour - particle number size distributions, particle size range 5-800 nm - particle number concentrations - light scattering and backscattering coefficient - black carbon - surface ozone concentrations Time resolution: 24 to 48 hours - 2-stage filter samples (ion chromatographic analyses) - 12-stage impactor samples (ion chromatographic analyses) - High-volume samples (ion chromatographic analyses, organic and elemental carbon analyses, Pb-210 activity concentrations) Non-regular measurements - aerosol optical depth, manual sunphotometer, not measured every day During the 1999/2000 expedition measurements were also conducted on the Atlantic Ocean on the way to Antarctica onboard the Russian research vessel Akademik Fedorov, used for the transport of the expeditions. 2003/2004 Time resolution: 10 min - 1 hour - particle number concentrations 2004/2005 Time resolution: 10 min - 1 hour - particle number size distributions, particle size range 10-800 nm - particle number size distributions, particle size range 0.3-15 µm - particle number concentrations - air ion number size distributions, size range 0.5 - 40 nm During 2004/2005 expedition field measurements of number concentrations and size distributions were conducted within about 150 km around Aboa. 2006/2007 Time resolution: 1 min - 1 h - particle number size distributions, particle size range 3-1000 nm - particle number size distributions, particle size range 0.3-15 µm - particle number concentrations - air ion number size distributions, size range 0.4 - 40 nm - hygroscopic properties of aerosol particles; 10, 25, 50 and 90 nm - light scattering and backscattering coefficient - black carbon Time resolution: 48 hours - 2-stage filter samples (ion chromatographic analyses) - 12-stage impactor samples (ion chromatographic analyses) - High-volume samples, PM2.5 (ion chromatographic analyses, organic and elemental carbon analyses) Non-regular measurements - aerosol optical depth, manual sunphotometer, measured on sunny days, 3-6 times per day