DOI: 10.5194/tc-10-1991-2016
Scopus记录号: 2-s2.0-84986570791
论文题名: A representative density profile of the North Greenland snowpack
作者: Schaller C ; F ; , Freitag J ; , Kipfstuhl S ; , Laepple T ; , Christian Steen-Larsen H ; , Eisen O
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 5 起始页码: 1991
结束页码: 2002
语种: 英语
英文关键词: accumulation rate
; algorithm
; data set
; density
; empirical analysis
; isotopic composition
; snowpack
; vertical distribution
; Arctic
; Greenland
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75086
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
Schaller C,F,, Freitag J,et al. A representative density profile of the North Greenland snowpack[J]. Cryosphere,2016-01-01,10(5)