气候变化领域集成服务门户(CCPortal): A representative density profile of the North Greenland snowpack

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DOI	10.5194/tc-10-1991-2016
	A representative density profile of the North Greenland snowpack
	Schaller C.F.; Freitag J.; Kipfstuhl S.; Laepple T.; Christian Steen-Larsen H.; Eisen O.
发表日期	2016
ISSN	19940416
卷号	10 期号:5
英文摘要	Along a traverse through North Greenland in May 2015 we collected snow cores up to 2g-m depth and analyzed their density and water isotopic composition. A new sampling technique and an adapted algorithm for comparing data sets from different sites and aligning stratigraphic features are presented. We find good agreement of the density layering in the snowpack over hundreds of kilometers, which allows the construction of a representative density profile. The results are supported by an empirical statistical density model, which is used to generate sets of random profiles and validate the applied methods. Furthermore we are able to calculate annual accumulation rates, align melt layers and observe isotopic temperatures in the area back to 2010. Distinct relations of δ18O with both accumulation rate and density are deduced. Inter alia the depths of the 2012 melt layers and high-resolution densities are provided for applications in remote sensing. © Author(s) 2016.
学科领域	accumulation rate; algorithm; data set; density; empirical analysis; isotopic composition; snowpack; vertical distribution; Arctic; Greenland
语种	英语
scopus关键词	accumulation rate; algorithm; data set; density; empirical analysis; isotopic composition; snowpack; vertical distribution; Arctic; Greenland
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119591
作者单位	Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark; Department of Geosciences, University of Bremen, Bremen, Germany
推荐引用方式 GB/T 7714	Schaller C.F.,Freitag J.,Kipfstuhl S.,et al. A representative density profile of the North Greenland snowpack[J],2016,10(5).
APA	Schaller C.F.,Freitag J.,Kipfstuhl S.,Laepple T.,Christian Steen-Larsen H.,&Eisen O..(2016).A representative density profile of the North Greenland snowpack.Cryosphere,10(5).
MLA	Schaller C.F.,et al."A representative density profile of the North Greenland snowpack".Cryosphere 10.5(2016).