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Piel, Claudia; Weller, Rolf; Huke, Michael; Wagenbach, Dietmar (2006): Aerosol concentration at Kohnen station in south summer 2000, 2001 and 2002. PANGAEA,, Supplement to: Piel, C et al. (2006): Atmospheric methane sulfonate and non-sea-salt sulfate records at the European Project for Ice Coring in Antarctica (EPICA) deep-drilling site in Dronning Maud Land, Antarctica. Journal of Geophysical Research: Atmospheres, 111, D03304,

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During three summer campaigns in January/February 2000, 2001, and 2002 the ionic composition of the aerosol at the European Project for Ice Coring in Antarctica (EPICA) deep-drilling site at Kohnen Station was measured in daily resolution. In 2000 and 2002 we observed mean (±std) non-sea-salt sulfate (nss-[SO4]2-) concentrations of 353 ± 100 ng/m**3 and 320 ± 250 ng/m**3, as well as methane sulfonate (MS) concentrations of 59 ± 36 ng/m**3 and 74 ± 80 ng/m**3, respectively. For the summer campaign in 2001, significantly lower nss-[SO4]2- and MS levels of 164 ± 150 ng/m**3 and 19 ± 12 ng/m**3, respectively, were typical. The mean MS/nss-[SO4]2- ratio ranged from about 0.1 to 0.2. MS and nss-[SO4]2- concentrations and their variability were roughly comparable to coastal stations at summer. Supported by air mass back trajectory analyses, this finding documented an efficient long-range transport to Kohnen via the free troposphere. MS/nss-[SO4]2- ratios exhibited a strong dependence on the MS concentration with systematically higher ratios at higher MS concentrations, a peculiarity which is also evident in a firn core drilled at this site.
Related to:
Piel, Claudia (2004): Variabilität chemischer und physikalischer Parameter des Aerosols in der antarktischen Troposphäre (Variability of chemical and physical parameters of aerosol in the Antarctic troposphere). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 476, 157 pp,
Latitude: -75.001660 * Longitude: 0.067830
Date/Time Start: 2000-01-06T00:00:00 * Date/Time End: 2002-02-11T21:55:00
Minimum ALTITUDE: 2.5 m * Maximum ALTITUDE: 2.5 m
Kohnen * Latitude: -75.001660 * Longitude: 0.067830 * Elevation: 2892.0 m * Location: Dronning Maud Land, Antarctica * Campaign: AWI_stations * Basis: AWI Antarctic Land Expedition * Method/Device: Research station (RS)
1176 data points

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