干旱区生态环境知识资源中心(Arid): Application of the radionuclide Pb-210 in glaciology

Arid

DOI	10.1017/jog.2020.19
	Application of the radionuclide Pb-210 in glaciology - an overview
	Gaggeler, Heinz W.1,2; Tobler, Leonhard 1; Schwikowski, Margit 1,2,3; Jenk, Theo M.1,3
通讯作者	Jenk, Theo M.
来源期刊	JOURNAL OF GLACIOLOGY
ISSN	0022-1430
EISSN	1727-5652
出版年	2020
卷号	66 期号:257 页码:447-456
英文摘要	Pb-210 is an environmental radionuclide with a half-life of 22.3 years, formed in the atmosphere via radioactive decay of radon (Rn-222). Rn-222 itself is a noble gas with a half-life of 3.8 days and is formed via radioactive decay of uranium (U-238) contained in the Earth crust from where it constantly emanates into the atmosphere. Pb-210 atoms attach to aerosol particles, which are then deposited on glaciers via scavenging with fresh snow. Due to its half-life, ice cores can be dated with this radionuclide over roughly one century, depending on the initial Pb-210 activity concentration. Optimum Pb-210 dating is achieved for cold glaciers with no - or little - influence by percolating meltwater. This paper presents an overview which not only includes dating of cold glaciers but also some special cases of Pb-210 applications in glaciology addressing temperate glaciers, glaciers with negative mass balance, sublimation processes on glaciers in arid regions, determination of annual net snow accumulation as well as glacier flow rates.
英文关键词	mountain glaciers ice core ice chronology dating glaciological instruments and methods accumulation
类型	Article
语种	英语
国家	Switzerland
开放获取类型	Green Accepted, gold
收录类别	SCI-E
WOS记录号	WOS:000531857800008
WOS关键词	ICE-CORE ; RESIDENCE TIMES ; SNOW ACCUMULATION ; GLACIER ; CHRONOLOGY ; DEPOSITION ; AEROSOL ; RECONSTRUCTION ; ANTARCTICA ; SEDIMENTS
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318724
作者单位	1.Paul Scherrer Inst, Environm Chem Lab, CH-5232 Villigen, Switzerland; 2.Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland; 3.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland
推荐引用方式 GB/T 7714	Gaggeler, Heinz W.,Tobler, Leonhard,Schwikowski, Margit,et al. Application of the radionuclide Pb-210 in glaciology - an overview[J],2020,66(257):447-456.
APA	Gaggeler, Heinz W.,Tobler, Leonhard,Schwikowski, Margit,&Jenk, Theo M..(2020).Application of the radionuclide Pb-210 in glaciology - an overview.JOURNAL OF GLACIOLOGY,66(257),447-456.
MLA	Gaggeler, Heinz W.,et al."Application of the radionuclide Pb-210 in glaciology - an overview".JOURNAL OF GLACIOLOGY 66.257(2020):447-456.