气候变化领域集成服务门户(CCPortal): Continuous condensation particle (CP) observations from 1984 through 2009 at Neumayer Station, Antarctica

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.771194
	Continuous condensation particle (CP) observations from 1984 through 2009 at Neumayer Station, Antarctica
	Weller; Rolf; Minikin; Andreas; Wagenbach; Dietmar; Dreiling; Volker
发布日期	2011-11-07
数据集类型	dataset
英文简介	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 1/cm3) 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/cm3 in March. Minimum values below 102/cm**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 Niño 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.
空间范围	Latitude: -70.650000 * Longitude: -8.250000
时间范围	1984-01-07T00:00:00 - 2009-12-31T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/226929
推荐引用方式 GB/T 7714	Weller,Rolf,Minikin,et al. Continuous condensation particle (CP) observations from 1984 through 2009 at Neumayer Station, Antarctica.2011-11-07.https://doi.org/10.1594/PANGAEA.771194.