Weller, Rolf and Minikin, Andreas and Wagenbach, Dietmar and Dreiling, Volker (2011) Characterization of the inter-annual, seasonal, and diurnal variations of condensation particle concentrations at Neumayer, Antarctica. Atmospheric Chemistry and Physics, 11, pp. 13243-13257. Copernicus Publications. doi: 10.5194/acp-11-13243-2011.
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Official URL: http://www.atmos-chem-phys.net/11/13243/2011/acp-11-13243-2011.html
Abstract
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 cmâ��3) 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 103 cmâ��3 in March. Minimum values below 102 cmâ��3 were observed during June/July. Dedicated time series analyses in the time and frequency domain revealed no significant correlations between inter-annual CP concentration variations and atmospheric circulation indices like Southern Annular Mode (SAM) or Southern Ocean Index (SOI). The impact of the Pinatubo volcanic eruption and strong El Ni�±o events did not affect CP concentrations. From thermodenuder experiments we deduced that the portion of volatile (at 125 �°C) and semi-volatile (at 250 �°C) particles which could be both associated with biogenic sulfur aerosol, was maximum during austral summer, while during winter non-volatile sea salt particles dominated. During September through April we could frequently observe enhanced concentrations of ultrafine particles within the nucleation mode (between 3 nm and 7 nm particle diameter), preferentially in the afternoon.
Item URL in elib: | https://elib.dlr.de/73379/ | |||||||||||||||
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Document Type: | Article | |||||||||||||||
Title: | Characterization of the inter-annual, seasonal, and diurnal variations of condensation particle concentrations at Neumayer, Antarctica | |||||||||||||||
Authors: |
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Date: | 21 December 2011 | |||||||||||||||
Journal or Publication Title: | Atmospheric Chemistry and Physics | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | Yes | |||||||||||||||
Gold Open Access: | Yes | |||||||||||||||
In SCOPUS: | Yes | |||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||
Volume: | 11 | |||||||||||||||
DOI : | 10.5194/acp-11-13243-2011 | |||||||||||||||
Page Range: | pp. 13243-13257 | |||||||||||||||
Publisher: | Copernicus Publications | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | aerosol, Neumayer, condensation particles, non-volatile particles | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Space | |||||||||||||||
HGF - Program Themes: | Earth Observation | |||||||||||||||
DLR - Research area: | Raumfahrt | |||||||||||||||
DLR - Program: | R EO - Earth Observation | |||||||||||||||
DLR - Research theme (Project): | R - Atmospheric and climate research | |||||||||||||||
Location: | Oberpfaffenhofen | |||||||||||||||
Institutes and Institutions: | Institute of Atmospheric Physics > Atmospheric Trace Species | |||||||||||||||
Deposited By: | Minikin, Dr.rer.nat. Andreas | |||||||||||||||
Deposited On: | 29 Dec 2011 14:02 | |||||||||||||||
Last Modified: | 02 May 2019 14:04 |
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