Search results for "condensation particles"

Characterization of the inter-annual, seasonal, and diurnal variations of condensation particle concentrations at Neumayer, Antarctica

2011

Continuous condensation particle (CP) observations were conducted from 1984 through 2009 at Neumayer Station under stringent contamination control. During this period, the CP concentration (median 258 cm<sup>−3</sup>) showed no significant long term trend but exhibited a pronounced seasonality characterized by a stepwise increase starting in September and reaching its annual maximum of around 10<sup>3</sup> cm<sup>−3</sup> in March. Minimum values below 10<sup>2</sup> cm<sup>–3</sup> were observed during June/July. Dedicated time series analyses in the time and frequency domain revealed no significant correlations between…