Condensation nucleus size distribution at mawson,Antarctica: seasonal cycle |
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| Institution: | 1. Australian Maritime College, University of Tasmania, Launceston, Tasmania 7250, Australia;2. School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China;1. Agro-industrial Process Engineering, Universidad de La Sabana, Campus Universitario del Puente del Común, km 7 Autopista Norte de Bogotá, Chía, Cundinamarca, Colombia;2. Agri-Food Engineering and Biotechnology Department, Universidad Politécnica de Cataluña (UPC), C/Esteve Terradas, 8, Castelldefels, Barcelona, Spain;1. Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Schwertnergasse 1, 50667 Köln, Germany;2. Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSN-RES, Cadarache, 13115 Saint-Paul-lez-Durance, France;3. European Commission JRC, Directorate for Nuclear Safety and Security, Petten, Netherlands;4. Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany;5. CIEMAT, Avda. Complutense, 40, 28040 Madrid, Spain;1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Fuxue Road 18th, Beijing 102200, China;2. Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, University Station, Box X, Austin, TX 78713-8924, USA |
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| Abstract: | The size distribution of atmospheric condensation nuclei (CN) has been measured at Mawson, on the Antarctic coast, during the period 1985–1990. A clear seasonal cycle is demonstrated in the size distribution with periods of marked bimodality during early spring and autumn. Between these periods, in late spring and summer, steady growth in particle size followed by a period with a relatively stable size distribution and relatively little new particle production were observed. During the remaining part of the year nucleus mode particle concentrations were low, typically less than 20 cm−3. |
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