气候变化领域集成服务门户(CCPortal): Continuously measured 222Rn activity concentrations (daily means) in near surface air at Neumayer Station in the period 1995 through 2011

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.822027
	Continuously measured 222Rn activity concentrations (daily means) in near surface air at Neumayer Station in the period 1995 through 2011
	Weller; Rolf; Levin; Ingeborg; Schmithüsen; Dominik; Nachbar; Mario; Asseng; Jölund; Wagenbach; Dietmar
发布日期	2013-11-12
数据集类型	dataset
英文简介	We report on continuously measured 222Rn activity concentrations in near-surface air at Neumayer Station in the period 1995-2011. This 17-year record showed no long-term trend and has overall mean ± standard deviation of (0.019 ± 0.012) Bq/m3. A distinct and persistent seasonality could be distinguished with maximum values of (0.028 ± 0.013) Bq/m3 from January to March and minimum values of (0.015 ± 0.009) Bq/m**3 from May to October. Elevated 222Rn activity concentrations were typically associated with air mass transport from the Antarctic Plateau. Our results do not support a relation between enhanced 222Rn activity concentrations at Neumayer and cyclonic activity or long-range transport from South America. The impact of oceanic 222Rn emissions could not be properly assessed but we tentatively identified regional sea ice extent (SIE) variability as a significant driver of the annual 222Rn cycle.
空间范围	Latitude: -70.650000 * Longitude: -8.250000
时间范围	1995-01-14T00:00:00 - 2011-12-31T00:00:00
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/234438
推荐引用方式 GB/T 7714	Weller,Rolf,Levin,et al. Continuously measured 222Rn activity concentrations (daily means) in near surface air at Neumayer Station in the period 1995 through 2011.2013-11-12.https://doi.org/10.1594/PANGAEA.822027.