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http://dx.doi.org/10.14191/Atmos.2012.22.1.087

On the Contrast of Aerosol Size Distribution and Cloud Condensation Nuclei Concentrations between the East and the West of the Korean Peninsula  

Kim, Jong Hwan (Dept. of Atmospheric Sciences, Yonsei University)
Park, Min-Su (Dept. of Atmospheric Sciences, Yonsei University)
Shim, Sungbo (National Institute of Meteorological Research)
Yum, Seong Soo (Dept. of Atmospheric Sciences, Yonsei University)
Publication Information
Atmosphere / v.22, no.1, 2012 , pp. 87-96 More about this Journal
Abstract
Aerosol number concentration ($N_{CN}$), size distribution and cloud condensation nuclei (CCN) concentration ($N_{CCN}$) were measured during 16-21 August 2008 at Daegwallyeong (DG) located in the eastern rural region of the Korean Peninsula. In the very next week (22-29 August 2008) the same aerosol properties were measured at Yeongjong Island (YJ) in the Yellow Sea. $N_{CN}$ for all 3 size cuts (above 3, 6 and 10 nm) was significantly higher at DG than YJ, but $N_{CCN}$ was significantly lower at the former and resulted in the $N_{CCN}/N_{CN}$ ratio more than twice higher at YJ ($0.94{\pm}0.09$ vs. $0.35{\pm}0.15$ at 0.53% supersaturation). The geometric mean diameter at DG, $53{\pm}15nm$, was much smaller than that at YJ, $91{\pm}6nm$, due to the particle formation events that were likely to have occurred continuously at DG. For given mean diameter, aerosols were more likely to act as CCN at YG compared to those at DG.
Keywords
Aerosol concentration and size distribution; cloud condensation; nuclei concentration;
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